C++ component of Ring gone

[lizkellogg@…]

The following bug report has been submitted:
Platform:        Linux-4.15.0-50-generic-x86_64-with-debian-buster-sid
ChimeraX Version: 0.9 (2019-05-23)
Description
saving a session, closing and reopening causes this error

Log:
UCSF ChimeraX version: 0.9 (2019-05-23)  
© 2016-2019 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open domain_intro/domain-intro-3.cxs

opened ChimeraX session  
Traceback (most recent call last):  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/atomic/nucleotides/_data.py", line 501, in rebuild  
_rebuild_molecule('internal', mol)  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/atomic/nucleotides/_data.py", line 621, in _rebuild_molecule  
mol.bounds() # need to recompute ribbon first TODO: another way?  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/atomic/structure.py", line 1671, in bounds  
self._update_graphics_if_needed() # Ribbon bounds computed from graphics  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/atomic/structure.py", line 314, in
_update_graphics_if_needed  
self._create_ring_graphics()  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/atomic/structure.py", line 500, in _create_ring_graphics  
atoms = ring.ordered_atoms  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/atomic/molc.py", line 161, in get_prop  
vcount = getattr(self, value_count)  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/atomic/molc.py", line 93, in get_prop  
cget(self._c_pointer_ref, 1, v_ref)  
AttributeError: 'Ring' object has no attribute '_c_pointer_ref'  
  
Error processing trigger "new frame": 'Ring' object has no attribute
'_c_pointer_ref':  
AttributeError: 'Ring' object has no attribute '_c_pointer_ref'  
  
File "/usr/lib/ucsf-chimerax/lib/python3.7/site-
packages/chimerax/atomic/molc.py", line 93, in get_prop  
cget(self._c_pointer_ref, 1, v_ref)  
  
See log for complete Python traceback.  
  




OpenGL version: 3.3.0 NVIDIA 415.27
OpenGL renderer: TITAN V/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation

[pett]

Hi Liz,

Could you provide the session (domain-intro-3.cxs) that gives this error? I haven't been able to reproduce it myself. Thanks!

--Eric

Eric Pettersen
UCSF Computer Graphics Lab

[Greg Couch]

This is probably a duplicate of #2240 which was just fixed.