Changes between Initial Version and Version 1 of Ticket #16901


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Timestamp:
Feb 19, 2025, 9:25:40 AM (8 months ago)
Author:
Eric Pettersen
Comment:

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  • Ticket #16901

    • Property Component Unassigned → MD/Ensemble Analysis
    • Property Owner set to Eric Pettersen
    • Property Platform → all
    • Property Project → ChimeraX
    • Property Status new → accepted
    • Property Summary ChimeraX bug report submission → MemoryError opening MD trajectory

  • Ticket #16901 – Description

    initial v1  
    12871287See log for complete Python traceback. 
    12881288 
    1289 Traceback (most recent call last): 
    1290 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1291 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1292 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1293 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1294 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1295 mouse_pause_tracking 
    1296 self._mouse_pause() 
    1297 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1298 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1299 m.pause(self._mouse_pause_position) 
    1300 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1301 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1302 p = self.view.picked_object(x, y) 
    1303 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1304 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1305 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1306 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1307 beyond, 
    1308 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1309 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1310 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1311 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1312 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1313 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1314 packages\chimerax\core\models.py", line 143, in first_intercept 
    1315 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1316 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1317 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1318 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1319 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1320 exclude=exclude) 
    1321 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1322 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1323 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1324 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1325 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1326 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1327 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1328 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1329 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1330 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1331 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1332 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1333 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1334 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1335 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1336 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1337 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1338 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1339 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1340 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1341 ^^^^^^^^^ 
    1342 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1343 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1344 cget(self._c_pointers, n, pointer(values)) 
    1345 ValueError: no active coordinate set 
    1346  
    1347 ValueError: no active coordinate set 
    1348  
    1349 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1350 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1351 cget(self._c_pointers, n, pointer(values)) 
    1352  
    1353 See log for complete Python traceback. 
    1354  
    1355 Traceback (most recent call last): 
    1356 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1357 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1358 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1359 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1360 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1361 mouse_pause_tracking 
    1362 self._mouse_pause() 
    1363 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1364 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1365 m.pause(self._mouse_pause_position) 
    1366 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1367 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1368 p = self.view.picked_object(x, y) 
    1369 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1370 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1371 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1372 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1373 beyond, 
    1374 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1375 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1376 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1377 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1378 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1379 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1380 packages\chimerax\core\models.py", line 143, in first_intercept 
    1381 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1382 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1383 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1384 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1385 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1386 exclude=exclude) 
    1387 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1388 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1389 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1390 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1391 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1392 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1393 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1394 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1395 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1396 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1397 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1398 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1399 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1400 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1401 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1402 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1403 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1404 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1405 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1406 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1407 ^^^^^^^^^ 
    1408 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1409 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1410 cget(self._c_pointers, n, pointer(values)) 
    1411 ValueError: no active coordinate set 
    1412  
    1413 ValueError: no active coordinate set 
    1414  
    1415 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1416 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1417 cget(self._c_pointers, n, pointer(values)) 
    1418  
    1419 See log for complete Python traceback. 
    1420  
    1421 Traceback (most recent call last): 
    1422 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1423 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1424 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1425 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1426 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1427 mouse_pause_tracking 
    1428 self._mouse_pause() 
    1429 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1430 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1431 m.pause(self._mouse_pause_position) 
    1432 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1433 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1434 p = self.view.picked_object(x, y) 
    1435 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1436 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1437 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1438 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1439 beyond, 
    1440 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1441 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1442 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1443 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1444 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1445 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1446 packages\chimerax\core\models.py", line 143, in first_intercept 
    1447 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1448 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1449 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1450 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1451 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1452 exclude=exclude) 
    1453 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1454 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1455 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1456 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1457 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1458 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1459 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1460 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1461 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1462 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1463 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1464 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1465 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1466 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1467 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1468 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1469 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1470 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1471 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1472 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1473 ^^^^^^^^^ 
    1474 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1475 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1476 cget(self._c_pointers, n, pointer(values)) 
    1477 ValueError: no active coordinate set 
    1478  
    1479 ValueError: no active coordinate set 
    1480  
    1481 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1482 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1483 cget(self._c_pointers, n, pointer(values)) 
    1484  
    1485 See log for complete Python traceback. 
    1486  
    1487 Traceback (most recent call last): 
    1488 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1489 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1490 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1491 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1492 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1493 mouse_pause_tracking 
    1494 self._mouse_pause() 
    1495 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1496 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1497 m.pause(self._mouse_pause_position) 
    1498 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1499 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1500 p = self.view.picked_object(x, y) 
    1501 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1502 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1503 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1504 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1505 beyond, 
    1506 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1507 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1508 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1509 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1510 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1511 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1512 packages\chimerax\core\models.py", line 143, in first_intercept 
    1513 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1514 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1515 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1516 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1517 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1518 exclude=exclude) 
    1519 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1520 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1521 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1522 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1523 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1524 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1525 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1526 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1527 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1528 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1529 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1530 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1531 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1532 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1533 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1534 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1535 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1536 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1537 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1538 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1539 ^^^^^^^^^ 
    1540 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1541 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1542 cget(self._c_pointers, n, pointer(values)) 
    1543 ValueError: no active coordinate set 
    1544  
    1545 ValueError: no active coordinate set 
    1546  
    1547 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1548 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1549 cget(self._c_pointers, n, pointer(values)) 
    1550  
    1551 See log for complete Python traceback. 
    1552  
    1553 Traceback (most recent call last): 
    1554 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1555 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1556 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1557 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1558 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1559 mouse_pause_tracking 
    1560 self._mouse_pause() 
    1561 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1562 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1563 m.pause(self._mouse_pause_position) 
    1564 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1565 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1566 p = self.view.picked_object(x, y) 
    1567 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1568 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1569 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1570 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1571 beyond, 
    1572 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1573 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1574 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1575 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1576 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1577 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1578 packages\chimerax\core\models.py", line 143, in first_intercept 
    1579 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1580 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1581 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1582 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1583 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1584 exclude=exclude) 
    1585 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1586 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1587 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1588 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1589 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1590 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1591 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1592 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1593 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1594 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1595 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1596 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1597 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1598 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1599 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1600 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1601 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1602 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1603 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1604 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1605 ^^^^^^^^^ 
    1606 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1607 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1608 cget(self._c_pointers, n, pointer(values)) 
    1609 ValueError: no active coordinate set 
    1610  
    1611 ValueError: no active coordinate set 
    1612  
    1613 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1614 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1615 cget(self._c_pointers, n, pointer(values)) 
    1616  
    1617 See log for complete Python traceback. 
    1618  
    1619 Traceback (most recent call last): 
    1620 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1621 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1622 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1623 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1624 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1625 mouse_pause_tracking 
    1626 self._mouse_pause() 
    1627 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1628 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1629 m.pause(self._mouse_pause_position) 
    1630 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1631 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1632 p = self.view.picked_object(x, y) 
    1633 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1634 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1635 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1636 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1637 beyond, 
    1638 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1639 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1640 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1641 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1642 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1643 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1644 packages\chimerax\core\models.py", line 143, in first_intercept 
    1645 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1646 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1647 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1648 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1649 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1650 exclude=exclude) 
    1651 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1652 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1653 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1654 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1655 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1656 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1657 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1658 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1659 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1660 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1661 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1662 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1663 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1664 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1665 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1666 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1667 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1668 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1669 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1670 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1671 ^^^^^^^^^ 
    1672 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1673 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1674 cget(self._c_pointers, n, pointer(values)) 
    1675 ValueError: no active coordinate set 
    1676  
    1677 ValueError: no active coordinate set 
    1678  
    1679 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1680 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1681 cget(self._c_pointers, n, pointer(values)) 
    1682  
    1683 See log for complete Python traceback. 
    1684  
    1685 Traceback (most recent call last): 
    1686 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1687 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1688 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1689 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1690 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1691 mouse_pause_tracking 
    1692 self._mouse_pause() 
    1693 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1694 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1695 m.pause(self._mouse_pause_position) 
    1696 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1697 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1698 p = self.view.picked_object(x, y) 
    1699 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1700 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1701 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1702 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1703 beyond, 
    1704 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1705 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1706 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1707 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1708 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1709 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1710 packages\chimerax\core\models.py", line 143, in first_intercept 
    1711 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1712 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1713 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1714 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1715 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1716 exclude=exclude) 
    1717 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1718 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1719 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1720 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1721 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1722 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1723 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1724 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1725 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1726 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1727 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1728 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1729 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1730 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1731 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1732 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1733 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1734 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1735 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1736 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1737 ^^^^^^^^^ 
    1738 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1739 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1740 cget(self._c_pointers, n, pointer(values)) 
    1741 ValueError: no active coordinate set 
    1742  
    1743 ValueError: no active coordinate set 
    1744  
    1745 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1746 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1747 cget(self._c_pointers, n, pointer(values)) 
    1748  
    1749 See log for complete Python traceback. 
    1750  
    1751 Traceback (most recent call last): 
    1752 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1753 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1754 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1755 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1756 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1757 mouse_pause_tracking 
    1758 self._mouse_pause() 
    1759 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1760 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1761 m.pause(self._mouse_pause_position) 
    1762 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1763 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1764 p = self.view.picked_object(x, y) 
    1765 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1766 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1767 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1768 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1769 beyond, 
    1770 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1771 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1772 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1773 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1774 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1775 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1776 packages\chimerax\core\models.py", line 143, in first_intercept 
    1777 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1778 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1779 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1780 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1781 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1782 exclude=exclude) 
    1783 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1784 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1785 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1786 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1787 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1788 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1789 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1790 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1791 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1792 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1793 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1794 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1795 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1796 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1797 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1798 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1799 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1800 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1801 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1802 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1803 ^^^^^^^^^ 
    1804 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1805 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1806 cget(self._c_pointers, n, pointer(values)) 
    1807 ValueError: no active coordinate set 
    1808  
    1809 ValueError: no active coordinate set 
    1810  
    1811 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1812 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1813 cget(self._c_pointers, n, pointer(values)) 
    1814  
    1815 See log for complete Python traceback. 
    1816  
    1817 Traceback (most recent call last): 
    1818 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1819 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1820 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1821 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1822 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1823 mouse_pause_tracking 
    1824 self._mouse_pause() 
    1825 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1826 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1827 m.pause(self._mouse_pause_position) 
    1828 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1829 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1830 p = self.view.picked_object(x, y) 
    1831 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1832 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1833 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1834 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1835 beyond, 
    1836 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1837 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1838 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1839 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1840 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1841 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1842 packages\chimerax\core\models.py", line 143, in first_intercept 
    1843 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1844 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1845 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1846 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1847 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1848 exclude=exclude) 
    1849 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1850 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1851 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1852 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1853 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1854 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1855 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1856 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1857 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1858 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1859 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1860 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1861 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1862 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1863 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1864 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1865 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1866 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1867 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1868 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1869 ^^^^^^^^^ 
    1870 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1871 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1872 cget(self._c_pointers, n, pointer(values)) 
    1873 ValueError: no active coordinate set 
    1874  
    1875 ValueError: no active coordinate set 
    1876  
    1877 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1878 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1879 cget(self._c_pointers, n, pointer(values)) 
    1880  
    1881 See log for complete Python traceback. 
    1882  
    1883 Traceback (most recent call last): 
    1884 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1885 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1886 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1887 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1888 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1889 mouse_pause_tracking 
    1890 self._mouse_pause() 
    1891 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1892 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1893 m.pause(self._mouse_pause_position) 
    1894 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1895 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1896 p = self.view.picked_object(x, y) 
    1897 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1898 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1899 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1900 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1901 beyond, 
    1902 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1903 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1904 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1905 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1906 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1907 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1908 packages\chimerax\core\models.py", line 143, in first_intercept 
    1909 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1910 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1911 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1912 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1913 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1914 exclude=exclude) 
    1915 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1916 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1917 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1918 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1919 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1920 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1921 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1922 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1923 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1924 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1925 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1926 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1927 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1928 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1929 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1930 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1931 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1932 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1933 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    1934 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    1935 ^^^^^^^^^ 
    1936 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1937 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1938 cget(self._c_pointers, n, pointer(values)) 
    1939 ValueError: no active coordinate set 
    1940  
    1941 ValueError: no active coordinate set 
    1942  
    1943 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1944 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    1945 cget(self._c_pointers, n, pointer(values)) 
    1946  
    1947 See log for complete Python traceback. 
    1948  
    1949 Traceback (most recent call last): 
    1950 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1951 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    1952 self.session.ui.mouse_modes.mouse_pause_tracking() 
    1953 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1954 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    1955 mouse_pause_tracking 
    1956 self._mouse_pause() 
    1957 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1958 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    1959 m.pause(self._mouse_pause_position) 
    1960 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1961 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    1962 p = self.view.picked_object(x, y) 
    1963 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1964 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1965 packages\chimerax\graphics\view.py", line 837, in picked_object 
    1966 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    1967 beyond, 
    1968 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1969 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1970 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    1971 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    1972 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1973 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1974 packages\chimerax\core\models.py", line 143, in first_intercept 
    1975 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    1976 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1977 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1978 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    1979 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    1980 exclude=exclude) 
    1981 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1982 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1983 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    1984 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    1985 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1986 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1987 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    1988 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    1989 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1990 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1991 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    1992 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    1993 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1994 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1995 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    1996 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    1997 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    1998 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    1999 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2000 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2001 ^^^^^^^^^ 
    2002 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2003 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2004 cget(self._c_pointers, n, pointer(values)) 
    2005 ValueError: no active coordinate set 
    2006  
    2007 ValueError: no active coordinate set 
    2008  
    2009 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2010 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2011 cget(self._c_pointers, n, pointer(values)) 
    2012  
    2013 See log for complete Python traceback. 
    2014  
    2015 Traceback (most recent call last): 
    2016 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2017 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2018 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2019 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2020 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2021 mouse_pause_tracking 
    2022 self._mouse_pause() 
    2023 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2024 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2025 m.pause(self._mouse_pause_position) 
    2026 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2027 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2028 p = self.view.picked_object(x, y) 
    2029 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2030 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2031 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2032 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2033 beyond, 
    2034 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2035 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2036 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2037 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2038 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2039 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2040 packages\chimerax\core\models.py", line 143, in first_intercept 
    2041 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2042 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2043 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2044 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2045 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2046 exclude=exclude) 
    2047 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2048 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2049 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2050 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2051 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2052 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2053 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2054 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2055 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2056 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2057 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2058 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2059 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2060 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2061 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2062 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2063 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2064 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2065 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2066 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2067 ^^^^^^^^^ 
    2068 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2069 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2070 cget(self._c_pointers, n, pointer(values)) 
    2071 ValueError: no active coordinate set 
    2072  
    2073 ValueError: no active coordinate set 
    2074  
    2075 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2076 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2077 cget(self._c_pointers, n, pointer(values)) 
    2078  
    2079 See log for complete Python traceback. 
    2080  
    2081 Traceback (most recent call last): 
    2082 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2083 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2084 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2085 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2086 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2087 mouse_pause_tracking 
    2088 self._mouse_pause() 
    2089 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2090 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2091 m.pause(self._mouse_pause_position) 
    2092 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2093 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2094 p = self.view.picked_object(x, y) 
    2095 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2096 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2097 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2098 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2099 beyond, 
    2100 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2101 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2102 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2103 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2104 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2105 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2106 packages\chimerax\core\models.py", line 143, in first_intercept 
    2107 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2108 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2109 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2110 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2111 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2112 exclude=exclude) 
    2113 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2114 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2115 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2116 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2117 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2118 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2119 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2120 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2121 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2122 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2123 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2124 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2125 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2126 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2127 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2128 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2129 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2130 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2131 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2132 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2133 ^^^^^^^^^ 
    2134 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2135 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2136 cget(self._c_pointers, n, pointer(values)) 
    2137 ValueError: no active coordinate set 
    2138  
    2139 ValueError: no active coordinate set 
    2140  
    2141 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2142 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2143 cget(self._c_pointers, n, pointer(values)) 
    2144  
    2145 See log for complete Python traceback. 
    2146  
    2147 Traceback (most recent call last): 
    2148 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2149 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2150 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2151 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2152 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2153 mouse_pause_tracking 
    2154 self._mouse_pause() 
    2155 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2156 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2157 m.pause(self._mouse_pause_position) 
    2158 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2159 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2160 p = self.view.picked_object(x, y) 
    2161 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2162 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2163 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2164 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2165 beyond, 
    2166 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2167 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2168 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2169 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2170 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2171 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2172 packages\chimerax\core\models.py", line 143, in first_intercept 
    2173 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2174 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2175 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2176 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2177 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2178 exclude=exclude) 
    2179 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2180 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2181 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2182 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2183 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2184 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2185 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2186 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2187 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2188 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2189 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2190 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2191 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2192 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2193 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2194 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2195 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2196 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2197 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2198 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2199 ^^^^^^^^^ 
    2200 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2201 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2202 cget(self._c_pointers, n, pointer(values)) 
    2203 ValueError: no active coordinate set 
    2204  
    2205 ValueError: no active coordinate set 
    2206  
    2207 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2208 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2209 cget(self._c_pointers, n, pointer(values)) 
    2210  
    2211 See log for complete Python traceback. 
    2212  
    2213 Traceback (most recent call last): 
    2214 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2215 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2216 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2217 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2218 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2219 mouse_pause_tracking 
    2220 self._mouse_pause() 
    2221 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2222 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2223 m.pause(self._mouse_pause_position) 
    2224 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2225 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2226 p = self.view.picked_object(x, y) 
    2227 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2228 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2229 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2230 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2231 beyond, 
    2232 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2233 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2234 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2235 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2236 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2237 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2238 packages\chimerax\core\models.py", line 143, in first_intercept 
    2239 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2240 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2241 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2242 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2243 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2244 exclude=exclude) 
    2245 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2246 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2247 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2248 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2249 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2250 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2251 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2252 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2253 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2254 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2255 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2256 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2257 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2258 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2259 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2260 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2261 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2262 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2263 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2264 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2265 ^^^^^^^^^ 
    2266 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2267 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2268 cget(self._c_pointers, n, pointer(values)) 
    2269 ValueError: no active coordinate set 
    2270  
    2271 ValueError: no active coordinate set 
    2272  
    2273 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2274 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2275 cget(self._c_pointers, n, pointer(values)) 
    2276  
    2277 See log for complete Python traceback. 
    2278  
    2279 Traceback (most recent call last): 
    2280 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2281 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2282 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2283 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2284 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2285 mouse_pause_tracking 
    2286 self._mouse_pause() 
    2287 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2288 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2289 m.pause(self._mouse_pause_position) 
    2290 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2291 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2292 p = self.view.picked_object(x, y) 
    2293 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2294 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2295 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2296 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2297 beyond, 
    2298 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2299 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2300 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2301 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2302 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2303 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2304 packages\chimerax\core\models.py", line 143, in first_intercept 
    2305 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2306 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2307 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2308 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2309 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2310 exclude=exclude) 
    2311 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2312 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2313 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2314 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2315 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2316 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2317 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2318 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2319 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2320 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2321 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2322 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2323 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2324 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2325 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2326 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2327 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2328 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2329 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2330 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2331 ^^^^^^^^^ 
    2332 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2333 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2334 cget(self._c_pointers, n, pointer(values)) 
    2335 ValueError: no active coordinate set 
    2336  
    2337 ValueError: no active coordinate set 
    2338  
    2339 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2340 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2341 cget(self._c_pointers, n, pointer(values)) 
    2342  
    2343 See log for complete Python traceback. 
    2344  
    2345 Traceback (most recent call last): 
    2346 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2347 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2348 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2349 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2350 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2351 mouse_pause_tracking 
    2352 self._mouse_pause() 
    2353 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2354 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2355 m.pause(self._mouse_pause_position) 
    2356 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2357 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2358 p = self.view.picked_object(x, y) 
    2359 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2360 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2361 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2362 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2363 beyond, 
    2364 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2365 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2366 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2367 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2368 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2369 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2370 packages\chimerax\core\models.py", line 143, in first_intercept 
    2371 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2372 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2373 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2374 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2375 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2376 exclude=exclude) 
    2377 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2378 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2379 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2380 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2381 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2382 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2383 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2384 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2385 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2386 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2387 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2388 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2389 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2390 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2391 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2392 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2393 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2394 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2395 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2396 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2397 ^^^^^^^^^ 
    2398 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2399 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2400 cget(self._c_pointers, n, pointer(values)) 
    2401 ValueError: no active coordinate set 
    2402  
    2403 ValueError: no active coordinate set 
    2404  
    2405 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2406 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2407 cget(self._c_pointers, n, pointer(values)) 
    2408  
    2409 See log for complete Python traceback. 
    2410  
    2411 Traceback (most recent call last): 
    2412 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2413 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2414 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2415 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2416 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2417 mouse_pause_tracking 
    2418 self._mouse_pause() 
    2419 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2420 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2421 m.pause(self._mouse_pause_position) 
    2422 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2423 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2424 p = self.view.picked_object(x, y) 
    2425 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2426 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2427 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2428 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2429 beyond, 
    2430 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2431 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2432 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2433 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2434 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2435 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2436 packages\chimerax\core\models.py", line 143, in first_intercept 
    2437 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2438 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2439 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2440 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2441 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2442 exclude=exclude) 
    2443 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2444 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2445 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2446 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2447 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2448 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2449 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2450 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2451 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2452 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2453 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2454 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2455 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2456 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2457 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2458 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2459 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2460 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2461 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2462 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2463 ^^^^^^^^^ 
    2464 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2465 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2466 cget(self._c_pointers, n, pointer(values)) 
    2467 ValueError: no active coordinate set 
    2468  
    2469 ValueError: no active coordinate set 
    2470  
    2471 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2472 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2473 cget(self._c_pointers, n, pointer(values)) 
    2474  
    2475 See log for complete Python traceback. 
    2476  
    2477 Traceback (most recent call last): 
    2478 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2479 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2480 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2481 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2482 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2483 mouse_pause_tracking 
    2484 self._mouse_pause() 
    2485 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2486 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2487 m.pause(self._mouse_pause_position) 
    2488 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2489 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2490 p = self.view.picked_object(x, y) 
    2491 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2492 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2493 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2494 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2495 beyond, 
    2496 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2497 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2498 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2499 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2500 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2501 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2502 packages\chimerax\core\models.py", line 143, in first_intercept 
    2503 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2504 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2505 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2506 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2507 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2508 exclude=exclude) 
    2509 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2510 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2511 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2512 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2513 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2514 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2515 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2516 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2517 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2518 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2519 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2520 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2521 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2522 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2523 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2524 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2525 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2526 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2527 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2528 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2529 ^^^^^^^^^ 
    2530 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2531 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2532 cget(self._c_pointers, n, pointer(values)) 
    2533 ValueError: no active coordinate set 
    2534  
    2535 ValueError: no active coordinate set 
    2536  
    2537 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2538 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2539 cget(self._c_pointers, n, pointer(values)) 
    2540  
    2541 See log for complete Python traceback. 
    2542  
    2543 Traceback (most recent call last): 
    2544 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2545 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2546 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2547 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2548 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2549 mouse_pause_tracking 
    2550 self._mouse_pause() 
    2551 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2552 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2553 m.pause(self._mouse_pause_position) 
    2554 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2555 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2556 p = self.view.picked_object(x, y) 
    2557 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2558 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2559 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2560 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2561 beyond, 
    2562 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2563 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2564 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2565 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2566 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2567 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2568 packages\chimerax\core\models.py", line 143, in first_intercept 
    2569 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2570 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2571 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2572 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2573 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2574 exclude=exclude) 
    2575 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2576 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2577 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2578 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2579 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2580 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2581 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2582 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2583 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2584 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2585 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2586 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2587 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2588 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2589 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2590 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2591 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2592 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2593 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2594 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2595 ^^^^^^^^^ 
    2596 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2597 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2598 cget(self._c_pointers, n, pointer(values)) 
    2599 ValueError: no active coordinate set 
    2600  
    2601 ValueError: no active coordinate set 
    2602  
    2603 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2604 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2605 cget(self._c_pointers, n, pointer(values)) 
    2606  
    2607 See log for complete Python traceback. 
    2608  
    2609 Traceback (most recent call last): 
    2610 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2611 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2612 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2613 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2614 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2615 mouse_pause_tracking 
    2616 self._mouse_pause() 
    2617 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2618 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2619 m.pause(self._mouse_pause_position) 
    2620 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2621 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2622 p = self.view.picked_object(x, y) 
    2623 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2624 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2625 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2626 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2627 beyond, 
    2628 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2629 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2630 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2631 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2632 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2633 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2634 packages\chimerax\core\models.py", line 143, in first_intercept 
    2635 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2636 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2637 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2638 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2639 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2640 exclude=exclude) 
    2641 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2642 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2643 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2644 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2645 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2646 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2647 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2648 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2649 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2650 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2651 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2652 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2653 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2654 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2655 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2656 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2657 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2658 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2659 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2660 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2661 ^^^^^^^^^ 
    2662 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2663 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2664 cget(self._c_pointers, n, pointer(values)) 
    2665 ValueError: no active coordinate set 
    2666  
    2667 ValueError: no active coordinate set 
    2668  
    2669 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2670 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2671 cget(self._c_pointers, n, pointer(values)) 
    2672  
    2673 See log for complete Python traceback. 
    2674  
    2675 Traceback (most recent call last): 
    2676 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2677 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2678 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2679 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2680 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2681 mouse_pause_tracking 
    2682 self._mouse_pause() 
    2683 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2684 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2685 m.pause(self._mouse_pause_position) 
    2686 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2687 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2688 p = self.view.picked_object(x, y) 
    2689 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2690 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2691 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2692 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2693 beyond, 
    2694 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2695 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2696 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2697 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2698 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2699 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2700 packages\chimerax\core\models.py", line 143, in first_intercept 
    2701 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2702 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2703 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2704 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2705 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2706 exclude=exclude) 
    2707 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2708 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2709 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2710 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2711 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2712 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2713 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2714 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2715 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2716 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2717 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2718 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2719 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2720 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2721 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2722 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2723 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2724 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2725 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2726 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2727 ^^^^^^^^^ 
    2728 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2729 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2730 cget(self._c_pointers, n, pointer(values)) 
    2731 ValueError: no active coordinate set 
    2732  
    2733 ValueError: no active coordinate set 
    2734  
    2735 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2736 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2737 cget(self._c_pointers, n, pointer(values)) 
    2738  
    2739 See log for complete Python traceback. 
    2740  
    2741 Traceback (most recent call last): 
    2742 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2743 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2744 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2745 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2746 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2747 mouse_pause_tracking 
    2748 self._mouse_pause() 
    2749 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2750 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2751 m.pause(self._mouse_pause_position) 
    2752 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2753 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2754 p = self.view.picked_object(x, y) 
    2755 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2756 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2757 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2758 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2759 beyond, 
    2760 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2761 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2762 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2763 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2764 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2765 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2766 packages\chimerax\core\models.py", line 143, in first_intercept 
    2767 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2768 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2769 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2770 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2771 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2772 exclude=exclude) 
    2773 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2774 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2775 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2776 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2777 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2778 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2779 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2780 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2781 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2782 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2783 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2784 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2785 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2786 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2787 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2788 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2789 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2790 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2791 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2792 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2793 ^^^^^^^^^ 
    2794 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2795 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2796 cget(self._c_pointers, n, pointer(values)) 
    2797 ValueError: no active coordinate set 
    2798  
    2799 ValueError: no active coordinate set 
    2800  
    2801 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2802 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2803 cget(self._c_pointers, n, pointer(values)) 
    2804  
    2805 See log for complete Python traceback. 
    2806  
    2807 Traceback (most recent call last): 
    2808 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2809 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2810 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2811 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2812 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2813 mouse_pause_tracking 
    2814 self._mouse_pause() 
    2815 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2816 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2817 m.pause(self._mouse_pause_position) 
    2818 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2819 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2820 p = self.view.picked_object(x, y) 
    2821 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2822 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2823 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2824 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2825 beyond, 
    2826 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2827 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2828 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2829 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2830 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2831 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2832 packages\chimerax\core\models.py", line 143, in first_intercept 
    2833 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2834 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2835 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2836 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2837 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2838 exclude=exclude) 
    2839 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2840 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2841 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2842 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2843 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2844 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2845 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2846 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2847 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2848 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2849 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2850 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2851 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2852 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2853 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2854 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2855 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2856 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2857 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2858 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2859 ^^^^^^^^^ 
    2860 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2861 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2862 cget(self._c_pointers, n, pointer(values)) 
    2863 ValueError: no active coordinate set 
    2864  
    2865 ValueError: no active coordinate set 
    2866  
    2867 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2868 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2869 cget(self._c_pointers, n, pointer(values)) 
    2870  
    2871 See log for complete Python traceback. 
    2872  
    2873 Traceback (most recent call last): 
    2874 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2875 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2876 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2877 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2878 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2879 mouse_pause_tracking 
    2880 self._mouse_pause() 
    2881 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2882 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2883 m.pause(self._mouse_pause_position) 
    2884 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2885 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2886 p = self.view.picked_object(x, y) 
    2887 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2888 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2889 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2890 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2891 beyond, 
    2892 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2893 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2894 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2895 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2896 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2897 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2898 packages\chimerax\core\models.py", line 143, in first_intercept 
    2899 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2900 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2901 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2902 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2903 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2904 exclude=exclude) 
    2905 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2906 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2907 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2908 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2909 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2910 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2911 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2912 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2913 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2914 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2915 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2916 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2917 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2918 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2919 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2920 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2921 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2922 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2923 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2924 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2925 ^^^^^^^^^ 
    2926 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2927 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2928 cget(self._c_pointers, n, pointer(values)) 
    2929 ValueError: no active coordinate set 
    2930  
    2931 ValueError: no active coordinate set 
    2932  
    2933 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2934 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2935 cget(self._c_pointers, n, pointer(values)) 
    2936  
    2937 See log for complete Python traceback. 
    2938  
    2939 Traceback (most recent call last): 
    2940 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2941 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    2942 self.session.ui.mouse_modes.mouse_pause_tracking() 
    2943 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2944 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    2945 mouse_pause_tracking 
    2946 self._mouse_pause() 
    2947 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2948 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    2949 m.pause(self._mouse_pause_position) 
    2950 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2951 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    2952 p = self.view.picked_object(x, y) 
    2953 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2954 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2955 packages\chimerax\graphics\view.py", line 837, in picked_object 
    2956 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    2957 beyond, 
    2958 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2959 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2960 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    2961 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    2962 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2963 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2964 packages\chimerax\core\models.py", line 143, in first_intercept 
    2965 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    2966 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2967 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2968 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    2969 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    2970 exclude=exclude) 
    2971 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2972 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2973 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    2974 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    2975 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2976 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2977 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    2978 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    2979 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2980 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2981 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    2982 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    2983 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2984 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2985 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    2986 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    2987 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2988 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2989 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    2990 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    2991 ^^^^^^^^^ 
    2992 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    2993 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    2994 cget(self._c_pointers, n, pointer(values)) 
    2995 ValueError: no active coordinate set 
    2996  
    2997 ValueError: no active coordinate set 
    2998  
    2999 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3000 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3001 cget(self._c_pointers, n, pointer(values)) 
    3002  
    3003 See log for complete Python traceback. 
    3004  
    3005 Traceback (most recent call last): 
    3006 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3007 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3008 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3009 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3010 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3011 mouse_pause_tracking 
    3012 self._mouse_pause() 
    3013 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3014 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3015 m.pause(self._mouse_pause_position) 
    3016 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3017 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3018 p = self.view.picked_object(x, y) 
    3019 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3020 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3021 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3022 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3023 beyond, 
    3024 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3025 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3026 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3027 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3028 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3029 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3030 packages\chimerax\core\models.py", line 143, in first_intercept 
    3031 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3032 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3033 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3034 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3035 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3036 exclude=exclude) 
    3037 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3038 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3039 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3040 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3041 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3042 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3043 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3044 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3045 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3046 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3047 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3048 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3049 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3050 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3051 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3052 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3053 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3054 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3055 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3056 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3057 ^^^^^^^^^ 
    3058 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3059 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3060 cget(self._c_pointers, n, pointer(values)) 
    3061 ValueError: no active coordinate set 
    3062  
    3063 ValueError: no active coordinate set 
    3064  
    3065 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3066 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3067 cget(self._c_pointers, n, pointer(values)) 
    3068  
    3069 See log for complete Python traceback. 
    3070  
    3071 Traceback (most recent call last): 
    3072 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3073 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3074 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3075 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3076 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3077 mouse_pause_tracking 
    3078 self._mouse_pause() 
    3079 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3080 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3081 m.pause(self._mouse_pause_position) 
    3082 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3083 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3084 p = self.view.picked_object(x, y) 
    3085 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3086 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3087 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3088 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3089 beyond, 
    3090 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3091 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3092 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3093 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3094 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3095 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3096 packages\chimerax\core\models.py", line 143, in first_intercept 
    3097 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3098 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3099 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3100 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3101 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3102 exclude=exclude) 
    3103 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3104 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3105 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3106 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3107 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3108 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3109 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3110 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3111 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3112 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3113 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3114 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3115 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3116 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3117 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3118 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3119 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3120 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3121 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3122 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3123 ^^^^^^^^^ 
    3124 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3125 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3126 cget(self._c_pointers, n, pointer(values)) 
    3127 ValueError: no active coordinate set 
    3128  
    3129 ValueError: no active coordinate set 
    3130  
    3131 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3132 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3133 cget(self._c_pointers, n, pointer(values)) 
    3134  
    3135 See log for complete Python traceback. 
    3136  
    3137 Traceback (most recent call last): 
    3138 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3139 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3140 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3141 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3142 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3143 mouse_pause_tracking 
    3144 self._mouse_pause() 
    3145 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3146 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3147 m.pause(self._mouse_pause_position) 
    3148 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3149 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3150 p = self.view.picked_object(x, y) 
    3151 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3152 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3153 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3154 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3155 beyond, 
    3156 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3157 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3158 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3159 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3160 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3161 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3162 packages\chimerax\core\models.py", line 143, in first_intercept 
    3163 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3164 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3165 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3166 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3167 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3168 exclude=exclude) 
    3169 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3170 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3171 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3172 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3173 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3174 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3175 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3176 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3177 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3178 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3179 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3180 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3181 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3182 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3183 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3184 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3185 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3186 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3187 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3188 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3189 ^^^^^^^^^ 
    3190 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3191 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3192 cget(self._c_pointers, n, pointer(values)) 
    3193 ValueError: no active coordinate set 
    3194  
    3195 ValueError: no active coordinate set 
    3196  
    3197 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3198 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3199 cget(self._c_pointers, n, pointer(values)) 
    3200  
    3201 See log for complete Python traceback. 
    3202  
    3203 Traceback (most recent call last): 
    3204 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3205 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3206 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3207 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3208 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3209 mouse_pause_tracking 
    3210 self._mouse_pause() 
    3211 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3212 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3213 m.pause(self._mouse_pause_position) 
    3214 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3215 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3216 p = self.view.picked_object(x, y) 
    3217 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3218 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3219 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3220 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3221 beyond, 
    3222 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3223 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3224 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3225 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3226 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3227 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3228 packages\chimerax\core\models.py", line 143, in first_intercept 
    3229 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3230 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3231 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3232 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3233 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3234 exclude=exclude) 
    3235 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3236 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3237 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3238 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3239 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3240 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3241 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3242 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3243 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3244 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3245 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3246 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3247 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3248 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3249 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3250 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3251 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3252 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3253 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3254 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3255 ^^^^^^^^^ 
    3256 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3257 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3258 cget(self._c_pointers, n, pointer(values)) 
    3259 ValueError: no active coordinate set 
    3260  
    3261 ValueError: no active coordinate set 
    3262  
    3263 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3264 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3265 cget(self._c_pointers, n, pointer(values)) 
    3266  
    3267 See log for complete Python traceback. 
    3268  
    3269 Traceback (most recent call last): 
    3270 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3271 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3272 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3273 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3274 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3275 mouse_pause_tracking 
    3276 self._mouse_pause() 
    3277 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3278 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3279 m.pause(self._mouse_pause_position) 
    3280 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3281 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3282 p = self.view.picked_object(x, y) 
    3283 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3284 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3285 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3286 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3287 beyond, 
    3288 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3289 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3290 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3291 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3292 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3293 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3294 packages\chimerax\core\models.py", line 143, in first_intercept 
    3295 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3296 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3297 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3298 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3299 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3300 exclude=exclude) 
    3301 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3302 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3303 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3304 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3305 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3306 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3307 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3308 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3309 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3310 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3311 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3312 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3313 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3314 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3315 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3316 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3317 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3318 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3319 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3320 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3321 ^^^^^^^^^ 
    3322 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3323 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3324 cget(self._c_pointers, n, pointer(values)) 
    3325 ValueError: no active coordinate set 
    3326  
    3327 ValueError: no active coordinate set 
    3328  
    3329 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3330 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3331 cget(self._c_pointers, n, pointer(values)) 
    3332  
    3333 See log for complete Python traceback. 
    3334  
    3335 Traceback (most recent call last): 
    3336 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3337 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3338 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3339 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3340 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3341 mouse_pause_tracking 
    3342 self._mouse_pause() 
    3343 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3344 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3345 m.pause(self._mouse_pause_position) 
    3346 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3347 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3348 p = self.view.picked_object(x, y) 
    3349 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3350 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3351 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3352 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3353 beyond, 
    3354 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3355 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3356 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3357 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3358 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3359 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3360 packages\chimerax\core\models.py", line 143, in first_intercept 
    3361 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3362 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3363 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3364 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3365 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3366 exclude=exclude) 
    3367 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3368 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3369 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3370 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3371 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3372 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3373 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3374 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3375 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3376 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3377 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3378 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3379 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3380 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3381 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3382 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3383 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3384 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3385 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3386 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3387 ^^^^^^^^^ 
    3388 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3389 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3390 cget(self._c_pointers, n, pointer(values)) 
    3391 ValueError: no active coordinate set 
    3392  
    3393 ValueError: no active coordinate set 
    3394  
    3395 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3396 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3397 cget(self._c_pointers, n, pointer(values)) 
    3398  
    3399 See log for complete Python traceback. 
    3400  
    3401 Traceback (most recent call last): 
    3402 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3403 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3404 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3405 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3406 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3407 mouse_pause_tracking 
    3408 self._mouse_pause() 
    3409 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3410 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3411 m.pause(self._mouse_pause_position) 
    3412 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3413 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3414 p = self.view.picked_object(x, y) 
    3415 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3416 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3417 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3418 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3419 beyond, 
    3420 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3421 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3422 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3423 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3424 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3425 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3426 packages\chimerax\core\models.py", line 143, in first_intercept 
    3427 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3428 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3429 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3430 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3431 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3432 exclude=exclude) 
    3433 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3434 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3435 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3436 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3437 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3438 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3439 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3440 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3441 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3442 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3443 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3444 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3445 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3446 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3447 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3448 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3449 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3450 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3451 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3452 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3453 ^^^^^^^^^ 
    3454 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3455 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3456 cget(self._c_pointers, n, pointer(values)) 
    3457 ValueError: no active coordinate set 
    3458  
    3459 ValueError: no active coordinate set 
    3460  
    3461 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3462 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3463 cget(self._c_pointers, n, pointer(values)) 
    3464  
    3465 See log for complete Python traceback. 
    3466  
    3467 Traceback (most recent call last): 
    3468 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3469 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3470 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3471 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3472 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3473 mouse_pause_tracking 
    3474 self._mouse_pause() 
    3475 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3476 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3477 m.pause(self._mouse_pause_position) 
    3478 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3479 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3480 p = self.view.picked_object(x, y) 
    3481 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3482 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3483 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3484 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3485 beyond, 
    3486 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3487 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3488 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3489 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3490 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3491 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3492 packages\chimerax\core\models.py", line 143, in first_intercept 
    3493 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3494 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3495 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3496 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3497 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3498 exclude=exclude) 
    3499 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3500 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3501 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3502 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3503 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3504 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3505 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3506 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3507 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3508 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3509 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3510 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3511 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3512 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3513 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3514 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3515 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3516 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3517 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3518 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3519 ^^^^^^^^^ 
    3520 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3521 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3522 cget(self._c_pointers, n, pointer(values)) 
    3523 ValueError: no active coordinate set 
    3524  
    3525 ValueError: no active coordinate set 
    3526  
    3527 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3528 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3529 cget(self._c_pointers, n, pointer(values)) 
    3530  
    3531 See log for complete Python traceback. 
    3532  
    3533 Traceback (most recent call last): 
    3534 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3535 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3536 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3537 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3538 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3539 mouse_pause_tracking 
    3540 self._mouse_pause() 
    3541 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3542 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3543 m.pause(self._mouse_pause_position) 
    3544 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3545 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3546 p = self.view.picked_object(x, y) 
    3547 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3548 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3549 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3550 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3551 beyond, 
    3552 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3553 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3554 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3555 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3556 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3557 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3558 packages\chimerax\core\models.py", line 143, in first_intercept 
    3559 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3560 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3561 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3562 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3563 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3564 exclude=exclude) 
    3565 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3566 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3567 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3568 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3569 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3570 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3571 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3572 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3573 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3574 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3575 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3576 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3577 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3578 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3579 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3580 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3581 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3582 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3583 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3584 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3585 ^^^^^^^^^ 
    3586 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3587 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3588 cget(self._c_pointers, n, pointer(values)) 
    3589 ValueError: no active coordinate set 
    3590  
    3591 ValueError: no active coordinate set 
    3592  
    3593 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3594 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3595 cget(self._c_pointers, n, pointer(values)) 
    3596  
    3597 See log for complete Python traceback. 
    3598  
    3599 Traceback (most recent call last): 
    3600 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3601 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3602 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3603 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3604 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3605 mouse_pause_tracking 
    3606 self._mouse_pause() 
    3607 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3608 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3609 m.pause(self._mouse_pause_position) 
    3610 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3611 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3612 p = self.view.picked_object(x, y) 
    3613 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3614 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3615 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3616 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3617 beyond, 
    3618 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3619 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3620 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3621 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3622 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3623 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3624 packages\chimerax\core\models.py", line 143, in first_intercept 
    3625 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3626 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3627 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3628 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3629 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3630 exclude=exclude) 
    3631 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3632 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3633 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3634 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3635 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3636 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3637 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3638 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3639 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3640 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3641 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3642 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3643 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3644 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3645 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3646 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3647 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3648 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3649 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3650 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3651 ^^^^^^^^^ 
    3652 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3653 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3654 cget(self._c_pointers, n, pointer(values)) 
    3655 ValueError: no active coordinate set 
    3656  
    3657 ValueError: no active coordinate set 
    3658  
    3659 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3660 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3661 cget(self._c_pointers, n, pointer(values)) 
    3662  
    3663 See log for complete Python traceback. 
    3664  
    3665 Traceback (most recent call last): 
    3666 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3667 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3668 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3669 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3670 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3671 mouse_pause_tracking 
    3672 self._mouse_pause() 
    3673 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3674 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3675 m.pause(self._mouse_pause_position) 
    3676 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3677 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3678 p = self.view.picked_object(x, y) 
    3679 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3680 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3681 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3682 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3683 beyond, 
    3684 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3685 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3686 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3687 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3688 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3689 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3690 packages\chimerax\core\models.py", line 143, in first_intercept 
    3691 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3692 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3693 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3694 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3695 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3696 exclude=exclude) 
    3697 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3698 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3699 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3700 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3701 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3702 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3703 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3704 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3705 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3706 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3707 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3708 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3709 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3710 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3711 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3712 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3713 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3714 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3715 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3716 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3717 ^^^^^^^^^ 
    3718 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3719 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3720 cget(self._c_pointers, n, pointer(values)) 
    3721 ValueError: no active coordinate set 
    3722  
    3723 ValueError: no active coordinate set 
    3724  
    3725 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3726 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3727 cget(self._c_pointers, n, pointer(values)) 
    3728  
    3729 See log for complete Python traceback. 
    3730  
    3731 Traceback (most recent call last): 
    3732 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3733 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3734 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3735 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3736 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3737 mouse_pause_tracking 
    3738 self._mouse_pause() 
    3739 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3740 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3741 m.pause(self._mouse_pause_position) 
    3742 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3743 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3744 p = self.view.picked_object(x, y) 
    3745 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3746 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3747 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3748 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3749 beyond, 
    3750 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3751 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3752 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3753 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3754 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3755 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3756 packages\chimerax\core\models.py", line 143, in first_intercept 
    3757 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3758 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3759 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3760 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3761 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3762 exclude=exclude) 
    3763 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3764 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3765 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3766 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3767 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3768 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3769 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3770 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3771 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3772 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3773 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3774 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3775 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3776 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3777 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3778 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3779 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3780 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3781 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3782 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3783 ^^^^^^^^^ 
    3784 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3785 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3786 cget(self._c_pointers, n, pointer(values)) 
    3787 ValueError: no active coordinate set 
    3788  
    3789 ValueError: no active coordinate set 
    3790  
    3791 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3792 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3793 cget(self._c_pointers, n, pointer(values)) 
    3794  
    3795 See log for complete Python traceback. 
    3796  
    3797 Traceback (most recent call last): 
    3798 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3799 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3800 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3801 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3802 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3803 mouse_pause_tracking 
    3804 self._mouse_pause() 
    3805 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3806 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3807 m.pause(self._mouse_pause_position) 
    3808 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3809 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3810 p = self.view.picked_object(x, y) 
    3811 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3812 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3813 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3814 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3815 beyond, 
    3816 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3817 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3818 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3819 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3820 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3821 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3822 packages\chimerax\core\models.py", line 143, in first_intercept 
    3823 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3824 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3825 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3826 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3827 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3828 exclude=exclude) 
    3829 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3830 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3831 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3832 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3833 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3834 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3835 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3836 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3837 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3838 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3839 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3840 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3841 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3842 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3843 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3844 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3845 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3846 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3847 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3848 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3849 ^^^^^^^^^ 
    3850 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3851 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3852 cget(self._c_pointers, n, pointer(values)) 
    3853 ValueError: no active coordinate set 
    3854  
    3855 ValueError: no active coordinate set 
    3856  
    3857 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3858 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3859 cget(self._c_pointers, n, pointer(values)) 
    3860  
    3861 See log for complete Python traceback. 
    3862  
    3863 Traceback (most recent call last): 
    3864 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3865 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3866 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3867 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3868 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3869 mouse_pause_tracking 
    3870 self._mouse_pause() 
    3871 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3872 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3873 m.pause(self._mouse_pause_position) 
    3874 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3875 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3876 p = self.view.picked_object(x, y) 
    3877 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3878 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3879 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3880 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3881 beyond, 
    3882 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3883 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3884 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3885 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3886 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3887 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3888 packages\chimerax\core\models.py", line 143, in first_intercept 
    3889 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3890 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3891 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3892 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3893 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3894 exclude=exclude) 
    3895 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3896 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3897 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3898 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3899 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3900 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3901 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3902 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3903 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3904 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3905 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3906 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3907 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3908 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3909 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3910 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3911 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3912 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3913 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3914 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3915 ^^^^^^^^^ 
    3916 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3917 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3918 cget(self._c_pointers, n, pointer(values)) 
    3919 ValueError: no active coordinate set 
    3920  
    3921 ValueError: no active coordinate set 
    3922  
    3923 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3924 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3925 cget(self._c_pointers, n, pointer(values)) 
    3926  
    3927 See log for complete Python traceback. 
    3928  
    3929 Traceback (most recent call last): 
    3930 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3931 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3932 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3933 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3934 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    3935 mouse_pause_tracking 
    3936 self._mouse_pause() 
    3937 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3938 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    3939 m.pause(self._mouse_pause_position) 
    3940 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3941 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    3942 p = self.view.picked_object(x, y) 
    3943 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3944 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3945 packages\chimerax\graphics\view.py", line 837, in picked_object 
    3946 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    3947 beyond, 
    3948 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3949 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3950 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    3951 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    3952 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3953 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3954 packages\chimerax\core\models.py", line 143, in first_intercept 
    3955 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    3956 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3957 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3958 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    3959 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    3960 exclude=exclude) 
    3961 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3962 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3963 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    3964 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    3965 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3966 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3967 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    3968 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    3969 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3970 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3971 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    3972 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    3973 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3974 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3975 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    3976 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    3977 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3978 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3979 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    3980 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    3981 ^^^^^^^^^ 
    3982 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3983 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3984 cget(self._c_pointers, n, pointer(values)) 
    3985 ValueError: no active coordinate set 
    3986  
    3987 ValueError: no active coordinate set 
    3988  
    3989 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3990 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    3991 cget(self._c_pointers, n, pointer(values)) 
    3992  
    3993 See log for complete Python traceback. 
    3994  
    3995 Traceback (most recent call last): 
    3996 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    3997 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    3998 self.session.ui.mouse_modes.mouse_pause_tracking() 
    3999 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4000 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4001 mouse_pause_tracking 
    4002 self._mouse_pause() 
    4003 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4004 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4005 m.pause(self._mouse_pause_position) 
    4006 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4007 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4008 p = self.view.picked_object(x, y) 
    4009 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4010 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4011 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4012 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4013 beyond, 
    4014 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4015 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4016 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4017 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4018 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4019 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4020 packages\chimerax\core\models.py", line 143, in first_intercept 
    4021 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4022 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4023 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4024 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4025 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4026 exclude=exclude) 
    4027 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4028 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4029 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4030 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4031 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4032 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4033 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4034 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4035 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4036 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4037 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4038 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4039 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4040 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4041 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4042 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4043 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4044 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4045 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4046 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4047 ^^^^^^^^^ 
    4048 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4049 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4050 cget(self._c_pointers, n, pointer(values)) 
    4051 ValueError: no active coordinate set 
    4052  
    4053 ValueError: no active coordinate set 
    4054  
    4055 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4056 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4057 cget(self._c_pointers, n, pointer(values)) 
    4058  
    4059 See log for complete Python traceback. 
    4060  
    4061 Traceback (most recent call last): 
    4062 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4063 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4064 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4065 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4066 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4067 mouse_pause_tracking 
    4068 self._mouse_pause() 
    4069 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4070 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4071 m.pause(self._mouse_pause_position) 
    4072 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4073 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4074 p = self.view.picked_object(x, y) 
    4075 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4076 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4077 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4078 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4079 beyond, 
    4080 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4081 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4082 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4083 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4084 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4085 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4086 packages\chimerax\core\models.py", line 143, in first_intercept 
    4087 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4088 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4089 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4090 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4091 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4092 exclude=exclude) 
    4093 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4094 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4095 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4096 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4097 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4098 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4099 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4100 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4101 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4102 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4103 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4104 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4105 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4106 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4107 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4108 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4109 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4110 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4111 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4112 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4113 ^^^^^^^^^ 
    4114 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4115 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4116 cget(self._c_pointers, n, pointer(values)) 
    4117 ValueError: no active coordinate set 
    4118  
    4119 ValueError: no active coordinate set 
    4120  
    4121 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4122 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4123 cget(self._c_pointers, n, pointer(values)) 
    4124  
    4125 See log for complete Python traceback. 
    4126  
    4127 Traceback (most recent call last): 
    4128 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4129 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4130 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4131 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4132 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4133 mouse_pause_tracking 
    4134 self._mouse_pause() 
    4135 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4136 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4137 m.pause(self._mouse_pause_position) 
    4138 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4139 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4140 p = self.view.picked_object(x, y) 
    4141 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4142 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4143 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4144 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4145 beyond, 
    4146 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4147 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4148 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4149 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4150 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4151 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4152 packages\chimerax\core\models.py", line 143, in first_intercept 
    4153 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4154 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4155 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4156 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4157 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4158 exclude=exclude) 
    4159 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4160 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4161 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4162 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4163 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4164 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4165 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4166 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4167 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4168 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4169 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4170 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4171 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4172 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4173 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4174 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4175 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4176 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4177 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4178 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4179 ^^^^^^^^^ 
    4180 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4181 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4182 cget(self._c_pointers, n, pointer(values)) 
    4183 ValueError: no active coordinate set 
    4184  
    4185 ValueError: no active coordinate set 
    4186  
    4187 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4188 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4189 cget(self._c_pointers, n, pointer(values)) 
    4190  
    4191 See log for complete Python traceback. 
    4192  
    4193 Traceback (most recent call last): 
    4194 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4195 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4196 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4197 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4198 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4199 mouse_pause_tracking 
    4200 self._mouse_pause() 
    4201 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4202 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4203 m.pause(self._mouse_pause_position) 
    4204 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4205 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4206 p = self.view.picked_object(x, y) 
    4207 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4208 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4209 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4210 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4211 beyond, 
    4212 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4213 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4214 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4215 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4216 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4217 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4218 packages\chimerax\core\models.py", line 143, in first_intercept 
    4219 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4220 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4221 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4222 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4223 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4224 exclude=exclude) 
    4225 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4226 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4227 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4228 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4229 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4230 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4231 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4232 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4233 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4234 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4235 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4236 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4237 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4238 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4239 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4240 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4241 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4242 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4243 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4244 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4245 ^^^^^^^^^ 
    4246 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4247 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4248 cget(self._c_pointers, n, pointer(values)) 
    4249 ValueError: no active coordinate set 
    4250  
    4251 ValueError: no active coordinate set 
    4252  
    4253 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4254 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4255 cget(self._c_pointers, n, pointer(values)) 
    4256  
    4257 See log for complete Python traceback. 
    4258  
    4259 Traceback (most recent call last): 
    4260 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4261 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4262 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4263 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4264 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4265 mouse_pause_tracking 
    4266 self._mouse_pause() 
    4267 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4268 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4269 m.pause(self._mouse_pause_position) 
    4270 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4271 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4272 p = self.view.picked_object(x, y) 
    4273 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4274 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4275 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4276 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4277 beyond, 
    4278 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4279 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4280 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4281 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4282 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4283 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4284 packages\chimerax\core\models.py", line 143, in first_intercept 
    4285 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4286 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4287 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4288 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4289 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4290 exclude=exclude) 
    4291 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4292 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4293 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4294 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4295 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4296 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4297 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4298 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4299 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4300 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4301 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4302 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4303 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4304 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4305 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4306 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4307 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4308 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4309 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4310 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4311 ^^^^^^^^^ 
    4312 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4313 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4314 cget(self._c_pointers, n, pointer(values)) 
    4315 ValueError: no active coordinate set 
    4316  
    4317 ValueError: no active coordinate set 
    4318  
    4319 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4320 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4321 cget(self._c_pointers, n, pointer(values)) 
    4322  
    4323 See log for complete Python traceback. 
    4324  
    4325 Traceback (most recent call last): 
    4326 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4327 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4328 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4329 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4330 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4331 mouse_pause_tracking 
    4332 self._mouse_pause() 
    4333 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4334 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4335 m.pause(self._mouse_pause_position) 
    4336 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4337 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4338 p = self.view.picked_object(x, y) 
    4339 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4340 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4341 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4342 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4343 beyond, 
    4344 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4345 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4346 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4347 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4348 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4349 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4350 packages\chimerax\core\models.py", line 143, in first_intercept 
    4351 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4352 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4353 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4354 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4355 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4356 exclude=exclude) 
    4357 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4358 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4359 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4360 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4361 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4362 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4363 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4364 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4365 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4366 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4367 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4368 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4369 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4370 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4371 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4372 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4373 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4374 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4375 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4376 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4377 ^^^^^^^^^ 
    4378 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4379 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4380 cget(self._c_pointers, n, pointer(values)) 
    4381 ValueError: no active coordinate set 
    4382  
    4383 ValueError: no active coordinate set 
    4384  
    4385 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4386 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4387 cget(self._c_pointers, n, pointer(values)) 
    4388  
    4389 See log for complete Python traceback. 
    4390  
    4391 Traceback (most recent call last): 
    4392 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4393 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4394 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4395 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4396 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4397 mouse_pause_tracking 
    4398 self._mouse_pause() 
    4399 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4400 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4401 m.pause(self._mouse_pause_position) 
    4402 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4403 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4404 p = self.view.picked_object(x, y) 
    4405 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4406 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4407 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4408 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4409 beyond, 
    4410 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4411 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4412 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4413 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4414 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4415 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4416 packages\chimerax\core\models.py", line 143, in first_intercept 
    4417 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4418 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4419 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4420 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4421 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4422 exclude=exclude) 
    4423 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4424 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4425 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4426 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4427 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4428 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4429 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4430 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4431 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4432 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4433 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4434 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4435 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4436 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4437 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4438 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4439 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4440 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4441 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4442 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4443 ^^^^^^^^^ 
    4444 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4445 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4446 cget(self._c_pointers, n, pointer(values)) 
    4447 ValueError: no active coordinate set 
    4448  
    4449 ValueError: no active coordinate set 
    4450  
    4451 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4452 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4453 cget(self._c_pointers, n, pointer(values)) 
    4454  
    4455 See log for complete Python traceback. 
    4456  
    4457 Traceback (most recent call last): 
    4458 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4459 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4460 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4461 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4462 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4463 mouse_pause_tracking 
    4464 self._mouse_pause() 
    4465 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4466 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4467 m.pause(self._mouse_pause_position) 
    4468 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4469 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4470 p = self.view.picked_object(x, y) 
    4471 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4472 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4473 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4474 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4475 beyond, 
    4476 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4477 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4478 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4479 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4480 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4481 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4482 packages\chimerax\core\models.py", line 143, in first_intercept 
    4483 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4484 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4485 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4486 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4487 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4488 exclude=exclude) 
    4489 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4490 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4491 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4492 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4493 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4494 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4495 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4496 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4497 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4498 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4499 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4500 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4501 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4502 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4503 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4504 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4505 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4506 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4507 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4508 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4509 ^^^^^^^^^ 
    4510 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4511 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4512 cget(self._c_pointers, n, pointer(values)) 
    4513 ValueError: no active coordinate set 
    4514  
    4515 ValueError: no active coordinate set 
    4516  
    4517 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4518 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4519 cget(self._c_pointers, n, pointer(values)) 
    4520  
    4521 See log for complete Python traceback. 
    4522  
    4523 Traceback (most recent call last): 
    4524 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4525 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4526 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4527 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4528 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4529 mouse_pause_tracking 
    4530 self._mouse_pause() 
    4531 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4532 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4533 m.pause(self._mouse_pause_position) 
    4534 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4535 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4536 p = self.view.picked_object(x, y) 
    4537 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4538 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4539 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4540 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4541 beyond, 
    4542 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4543 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4544 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4545 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4546 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4547 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4548 packages\chimerax\core\models.py", line 143, in first_intercept 
    4549 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4550 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4551 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4552 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4553 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4554 exclude=exclude) 
    4555 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4556 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4557 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4558 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4559 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4560 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4561 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4562 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4563 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4564 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4565 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4566 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4567 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4568 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4569 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4570 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4571 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4572 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4573 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4574 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4575 ^^^^^^^^^ 
    4576 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4577 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4578 cget(self._c_pointers, n, pointer(values)) 
    4579 ValueError: no active coordinate set 
    4580  
    4581 ValueError: no active coordinate set 
    4582  
    4583 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4584 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4585 cget(self._c_pointers, n, pointer(values)) 
    4586  
    4587 See log for complete Python traceback. 
    4588  
    4589 Traceback (most recent call last): 
    4590 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4591 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4592 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4593 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4594 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4595 mouse_pause_tracking 
    4596 self._mouse_pause() 
    4597 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4598 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4599 m.pause(self._mouse_pause_position) 
    4600 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4601 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4602 p = self.view.picked_object(x, y) 
    4603 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4604 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4605 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4606 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4607 beyond, 
    4608 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4609 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4610 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4611 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4612 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4613 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4614 packages\chimerax\core\models.py", line 143, in first_intercept 
    4615 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4616 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4617 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4618 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4619 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4620 exclude=exclude) 
    4621 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4622 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4623 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4624 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4625 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4626 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4627 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4628 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4629 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4630 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4631 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4632 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4633 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4634 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4635 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4636 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4637 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4638 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4639 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4640 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4641 ^^^^^^^^^ 
    4642 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4643 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4644 cget(self._c_pointers, n, pointer(values)) 
    4645 ValueError: no active coordinate set 
    4646  
    4647 ValueError: no active coordinate set 
    4648  
    4649 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4650 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4651 cget(self._c_pointers, n, pointer(values)) 
    4652  
    4653 See log for complete Python traceback. 
    4654  
    4655 Traceback (most recent call last): 
    4656 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4657 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4658 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4659 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4660 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4661 mouse_pause_tracking 
    4662 self._mouse_pause() 
    4663 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4664 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4665 m.pause(self._mouse_pause_position) 
    4666 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4667 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4668 p = self.view.picked_object(x, y) 
    4669 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4670 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4671 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4672 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4673 beyond, 
    4674 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4675 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4676 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4677 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4678 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4679 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4680 packages\chimerax\core\models.py", line 143, in first_intercept 
    4681 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4682 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4683 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4684 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4685 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4686 exclude=exclude) 
    4687 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4688 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4689 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4690 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4691 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4692 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4693 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4694 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4695 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4696 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4697 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4698 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4699 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4700 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4701 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4702 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4703 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4704 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4705 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4706 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4707 ^^^^^^^^^ 
    4708 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4709 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4710 cget(self._c_pointers, n, pointer(values)) 
    4711 ValueError: no active coordinate set 
    4712  
    4713 ValueError: no active coordinate set 
    4714  
    4715 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4716 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4717 cget(self._c_pointers, n, pointer(values)) 
    4718  
    4719 See log for complete Python traceback. 
    4720  
    4721 Traceback (most recent call last): 
    4722 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4723 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4724 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4725 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4726 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4727 mouse_pause_tracking 
    4728 self._mouse_pause() 
    4729 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4730 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4731 m.pause(self._mouse_pause_position) 
    4732 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4733 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4734 p = self.view.picked_object(x, y) 
    4735 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4736 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4737 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4738 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4739 beyond, 
    4740 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4741 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4742 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4743 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4744 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4745 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4746 packages\chimerax\core\models.py", line 143, in first_intercept 
    4747 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4748 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4749 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4750 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4751 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4752 exclude=exclude) 
    4753 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4754 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4755 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4756 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4757 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4758 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4759 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4760 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4761 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4762 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4763 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4764 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4765 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4766 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4767 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4768 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4769 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4770 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4771 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4772 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4773 ^^^^^^^^^ 
    4774 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4775 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4776 cget(self._c_pointers, n, pointer(values)) 
    4777 ValueError: no active coordinate set 
    4778  
    4779 ValueError: no active coordinate set 
    4780  
    4781 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4782 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4783 cget(self._c_pointers, n, pointer(values)) 
    4784  
    4785 See log for complete Python traceback. 
    4786  
    4787 Traceback (most recent call last): 
    4788 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4789 packages\chimerax\core\updateloop.py", line 151, in _redraw_timer_callback 
    4790 self.session.ui.mouse_modes.mouse_pause_tracking() 
    4791 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4792 packages\chimerax\mouse_modes\mousemodes.py", line 504, in
    4793 mouse_pause_tracking 
    4794 self._mouse_pause() 
    4795 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4796 packages\chimerax\mouse_modes\mousemodes.py", line 645, in _mouse_pause 
    4797 m.pause(self._mouse_pause_position) 
    4798 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4799 packages\chimerax\mouse_modes\std_modes.py", line 803, in pause 
    4800 p = self.view.picked_object(x, y) 
    4801 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4802 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4803 packages\chimerax\graphics\view.py", line 837, in picked_object 
    4804 p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
    4805 beyond, 
    4806 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4807 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4808 packages\chimerax\graphics\view.py", line 869, in picked_object_on_segment 
    4809 p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude) 
    4810 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4811 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4812 packages\chimerax\core\models.py", line 143, in first_intercept 
    4813 pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude) 
    4814 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4815 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4816 packages\chimerax\graphics\drawing.py", line 1069, in first_intercept 
    4817 p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
    4818 exclude=exclude) 
    4819 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4820 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4821 packages\chimerax\graphics\drawing.py", line 1086, in first_intercept_children 
    4822 p = d.first_intercept(cxyz1, cxyz2, exclude=exclude) 
    4823 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4824 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4825 packages\chimerax\atomic\structure.py", line 709, in first_intercept 
    4826 ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude) 
    4827 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4828 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4829 packages\chimerax\atomic\structure.py", line 742, in _position_intercepts 
    4830 p = d.first_intercept(xyz1, xyz2, exclude=exclude) 
    4831 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4832 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4833 packages\chimerax\atomic\structure.py", line 1194, in first_intercept 
    4834 b, f = _bond_intercept(bonds, mxyz1, mxyz2) 
    4835 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4836 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4837 packages\chimerax\atomic\structure.py", line 2249, in _bond_intercept 
    4838 cxyz1, cxyz2 = (a1.coords, a2.coords) 
    4839 ^^^^^^^^^ 
    4840 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4841 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4842 cget(self._c_pointers, n, pointer(values)) 
    4843 ValueError: no active coordinate set 
    4844  
    4845 ValueError: no active coordinate set 
    4846  
    4847 File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-
    4848 packages\chimerax\atomic\molc.py", line 208, in get_prop 
    4849 cget(self._c_pointers, n, pointer(values)) 
    4850  
    4851 See log for complete Python traceback. 
    4852  
     1289[deleted to fit within ticket limits]
     1290
    48531291Traceback (most recent call last): 
    48541292File "C:\Program Files\ChimeraX 1.9rc202412041747\bin\Lib\site-