id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
3668	Problem restoring session	ben.gully@…	Eric Pettersen	"{{{
The following bug report has been submitted:
Platform:        Darwin-18.7.0-x86_64-i386-64bit
ChimeraX Version: 0.9 (2019-06-06)
Description
(Describe the actions that caused this problem to occur here)

Log:
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 /Users/bgully/Desktop/rdrp-zoom.cxs format session

opened ChimeraX session  
Traceback (most recent call last):  
File
""/Applications/ChimeraX-0.9.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-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/atomic/structure.py"", line 2637, in
_update_graphics_if_needed  
s[i]._update_graphics_if_needed()  
File
""/Applications/ChimeraX-0.9.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-0.9.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-0.9.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-0.9.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"": 'Ring' object has no attribute
'_c_pointer_ref':  
AttributeError: 'Ring' object has no attribute '_c_pointer_ref'  
  
File
""/Applications/ChimeraX-0.9.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.  
  
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
""/Applications/ChimeraX-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/updateloop.py"", line 72, in draw_new_frame  
view.draw(check_for_changes = False)  
File
""/Applications/ChimeraX-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/graphics/view.py"", line 162, in draw  
self._draw_scene(camera, drawings)  
File
""/Applications/ChimeraX-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/graphics/view.py"", line 220, in _draw_scene  
draw_depth(r, opaque_drawings)  
File
""/Applications/ChimeraX-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py"", line 1413, in draw_depth  
draw_opaque(r, drawings)  
File
""/Applications/ChimeraX-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py"", line 1394, in draw_opaque  
_draw_multiple(drawings, renderer, Drawing.OPAQUE_DRAW_PASS)  
File
""/Applications/ChimeraX-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py"", line 1405, in _draw_multiple  
d.draw(renderer, draw_pass)  
File
""/Applications/ChimeraX-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py"", line 694, in draw  
if not self.display:  
File
""/Applications/ChimeraX-0.9.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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: 4.1 ATI-2.11.22
OpenGL renderer: AMD Radeon Pro 575X OpenGL Engine
OpenGL vendor: ATI Technologies Inc.

}}}
"	defect	closed	normal		Sessions		duplicate						all	ChimeraX