2dlabels fading broken

[Elaine Meng]

2dlabels text start xpos .2 ypos .2
2dlabels #1 size 40 color red frames 80
2dlabels #1 visibility false frames 80

Traceback (most recent call last):

File "/Users/chimera/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 "/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/chimerax/core/commands/motion.py", line 38, in call

self.func(self.session, f)

File "/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/chimerax/label/label2d.py", line 217, in frame_cb

self.label.color[-1] = self.label.color.dtype.type(self.color1[-1] * (1 - fraction))

AttributeError: '_InterpolateLabel' object has no attribute 'color1'

Error processing trigger "new frame": '_InterpolateLabel' object has no attribute 'color1':
AttributeError: '_InterpolateLabel' object has no attribute 'color1'

File "/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/chimerax/label/label2d.py", line 217, in frame_cb
self.label.color[-1] = self.label.color.dtype.type(self.color1[-1] * (1 - fraction))

See log for complete Python traceback.

[Elaine Meng]

It works to just set visibility false without a frames argument, but then "visibility true" does not turn the label back on. I don't know if that's related or a separate problem.

[Tom Goddard]

Eric added the 2d labels frames argument support.