id summary reporter owner description type status priority milestone component version resolution keywords cc blockedby blocking notify_on_close platform project 6308 "traceback using ""measure center"" on map model that hasn't been shown as a surface" Elaine Meng Tom Goddard "For example, use measure center #1 after opening the DICOM folder created by unzipping https://www.rbvi.ucsf.edu/chimerax/data/dicom/4-24533.zip (data supplied in the DICOM in VR tutorial) This is initially shown as a single plane in solid style. Same traceback even if full region is shown. Copied from Log: UCSF ChimeraX version: 1.4.dev202203030220 (2022-03-03) © 2016-2022 Regents of the University of California. All rights reserved. How to cite UCSF ChimeraX open 4-24533 format dicom Opened CHEST CT 4 as #1.1.1.1, grid size 512,512,236, pixel 0.576,0.576,1.25, shown at step 1, values int16 measure center #1Traceback (most recent call last): File ""/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/cmd_line/tool.py"", line 302, in execute cmd.run(cmd_text) File ""/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/commands/cli.py"", line 2897, in run result = ci.function(session, **kw_args) File ""/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/std_commands/measure_center.py"", line 31, in measure_center ijk = volume_center_of_mass(v, level) File ""/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/std_commands/measure_center.py"", line 65, in volume_center_of_mass kji = (m >= level).nonzero() TypeError: '>=' not supported between instances of 'int' and 'NoneType' TypeError: '>=' not supported between instances of 'int' and 'NoneType' File ""/Users/meng/Desktop/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/std_commands/measure_center.py"", line 65, in volume_center_of_mass kji = (m >= level).nonzero() " defect closed moderate Volume Data fixed all ChimeraX