self._positions is None

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Windows-10-10.0.17134
ChimeraX Version: 0.9 (2019-06-06)
Description
(Describe the actions that caused this problem to occur here)

Log:
Startup Messages  
---  
note | available bundle cache has not been initialized yet  
  
UCSF ChimeraX version: 0.9 (2019-06-06)  
© 2016-2019 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open "C:\\\Users\\\Phelps\\\Downloads\\\1ema.pdb"

1ema.pdb title:  
Green fluorescent protein from aequorea victoria [more info...]  
  
Chain information for 1ema.pdb #1  
---  
Chain | Description  
A | green fluorescent protein  
  

> mmaker

Missing or invalid "match_atoms" argument: empty atom specifier  

> open C:/Users/Phelps/Downloads/4ts2.pdb

4ts2.pdb title:  
Crystal structure of the spinach RNA aptamer In complex with dfhbi, magnesium
ions [more info...]  
  
Chain information for 4ts2.pdb #2  
---  
Chain | Description  
X | spinach aptamer RNA, bimolecular construct  
Y | spinach aptamer RNA, bimolecular construct  
  
Non-standard residues in 4ts2.pdb #2  
---  
38E —
(5Z)-5-(3,5-difluoro-4-hydroxybenzylidene)-2,3-dimethyl-3,5-dihydro-4H-imidazol-4-one  
CCC — cytidine-5'-phosphate-2',3'-cyclic phosphate  
MG — magnesium ion  
SUC — sucrose  
  

> mmaker

Missing or invalid "match_atoms" argument: empty atom specifier  

> style selAtoms stick

Changed 3838 atom styles  

> style selAtoms stick

Changed 3838 atom styles  

> style selAtoms stick

Changed 3838 atom styles  

> show selAtoms surfaces

> nucleotides selAtoms stubs

> nucleotides selAtoms ladder

> nucleotides selAtoms tube/slab shape muffler

> nucleotides selAtoms tube/slab shape ellipsoid

> nucleotides selAtoms tube/slab shape box

> nucleotides selAtoms slab

An error occurred in drawing the scene. Redrawing graphics is now stopped to
avoid a continuous stream of error messages. To restart graphics use the
command "graphics restart" after changing the settings that caused the error.  
  
Traceback (most recent call last):  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\updateloop.py", line 72, in draw_new_frame  
view.draw(check_for_changes = False)  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\graphics\view.py", line 162, in draw  
self._draw_scene(camera, drawings)  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\graphics\view.py", line 224, in _draw_scene  
draw_opaque(r, opaque_drawings)  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\graphics\drawing.py", line 1394, in draw_opaque  
_draw_multiple(drawings, renderer, Drawing.OPAQUE_DRAW_PASS)  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\graphics\drawing.py", line 1405, in _draw_multiple  
d.draw(renderer, draw_pass)  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\graphics\drawing.py", line 694, in draw  
if not self.display:  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\graphics\drawing.py", line 317, in get_display  
return self._any_displayed_positions and len(self._positions) > 0  
TypeError: object of type 'NoneType' has no len()  
  




OpenGL version: 3.3.0 NVIDIA 389.08
OpenGL renderer: Quadro K5100M/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation

[Tom Goddard]

Duplicate. Fixed a while ago.