﻿id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
2691	Error with nucleotide/ring graphics after session restore	nicholas.sofos@…	Greg Couch	"{{{
The following bug report has been submitted:
Platform:        Darwin-18.7.0-x86_64-i386-64bit
ChimeraX Version: 0.91 (2019-08-24)
Description
Executing the same command multiple times using different values suddently started triggering the problem.

Log:
UCSF ChimeraX version: 0.91 (2019-08-24)  
© 2016-2019 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open
/Users/hqj603/Desktop/Postdoc_Montoya_lab/CmrB_ChimeraX_sessions/ANP1_CTRdensity_stalk_overview.cxs
format session

opened ChimeraX session  
Traceback (most recent call last):  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/triggerset.py"", line 130, in invoke  
return self._func(self._name, data)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/atomic/structure.py"", line 2664, in
_update_graphics_if_needed  
s[i]._update_graphics_if_needed()  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/atomic/structure.py"", line 314, in
_update_graphics_if_needed  
self._create_ring_graphics()  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/atomic/structure.py"", line 500, in _create_ring_graphics  
atoms = ring.ordered_atoms  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/atomic/molc.py"", line 161, in get_prop  
vcount = getattr(self, value_count)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/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 ""graphics update"":  
AttributeError: 'Ring' object has no attribute '_c_pointer_ref'  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/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.  
  

> cartoon style helix width 1.5

Traceback (most recent call last):  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/cmd_line/tool.py"", line 254, in execute  
cmd.run(cmd_text)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/commands/cli.py"", line 2688, in run  
result = ci.function(session, **kw_args)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 298, in cartoon_style  
old_arrow_scale = aw / w  
ZeroDivisionError: float division by zero  
  
ZeroDivisionError: float division by zero  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 298, in cartoon_style  
old_arrow_scale = aw / w  
  
See log for complete Python traceback.  
  

Expected a keyword  

> cartoon style #1 width 1.5

Traceback (most recent call last):  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/cmd_line/tool.py"", line 254, in execute  
cmd.run(cmd_text)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/commands/cli.py"", line 2688, in run  
result = ci.function(session, **kw_args)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 298, in cartoon_style  
old_arrow_scale = aw / w  
ZeroDivisionError: float division by zero  
  
ZeroDivisionError: float division by zero  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 298, in cartoon_style  
old_arrow_scale = aw / w  
  
See log for complete Python traceback.  
  

> cartoon style #1 thickness 1.5

Traceback (most recent call last):  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/cmd_line/tool.py"", line 254, in execute  
cmd.run(cmd_text)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/commands/cli.py"", line 2688, in run  
result = ci.function(session, **kw_args)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 298, in cartoon_style  
old_arrow_scale = aw / w  
ZeroDivisionError: float division by zero  
  
ZeroDivisionError: float division by zero  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 298, in cartoon_style  
old_arrow_scale = aw / w  
  
See log for complete Python traceback.  
  

> cartoon style thickness 1.5

Traceback (most recent call last):  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/cmd_line/tool.py"", line 254, in execute  
cmd.run(cmd_text)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/commands/cli.py"", line 2688, in run  
result = ci.function(session, **kw_args)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 298, in cartoon_style  
old_arrow_scale = aw / w  
ZeroDivisionError: float division by zero  
  
ZeroDivisionError: float division by zero  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 298, in cartoon_style  
old_arrow_scale = aw / w  
  
See log for complete Python traceback.  
  

> cartoon style strand thickness 1.5

Traceback (most recent call last):  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/cmd_line/tool.py"", line 254, in execute  
cmd.run(cmd_text)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/commands/cli.py"", line 2688, in run  
result = ci.function(session, **kw_args)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 406, in cartoon_style  
old_arrow_scale = aw / w  
ZeroDivisionError: float division by zero  
  
ZeroDivisionError: float division by zero  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 406, in cartoon_style  
old_arrow_scale = aw / w  
  
See log for complete Python traceback.  
  

> cartoon style strand thickness 1.5

Traceback (most recent call last):  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/cmd_line/tool.py"", line 254, in execute  
cmd.run(cmd_text)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/commands/cli.py"", line 2688, in run  
result = ci.function(session, **kw_args)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 406, in cartoon_style  
old_arrow_scale = aw / w  
ZeroDivisionError: float division by zero  
  
ZeroDivisionError: float division by zero  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/std_commands/cartoon.py"", line 406, in cartoon_style  
old_arrow_scale = aw / w  
  
See log for complete Python traceback.  
  




OpenGL version: 4.1 INTEL-12.10.12
OpenGL renderer: Intel Iris Pro OpenGL Engine
OpenGL vendor: Intel Inc.

}}}
"	defect	closed	normal		Sessions		duplicate						all	ChimeraX
