Bvh file playback getting AttributeError: 'MLineSource' object has no attribute 'vectors' and C assertion.

[lucasnavisens]

Hey,

I am trying to run the InteractiveAnimation with a bvh file input (downloaded for examples), seems there is a type discrepancy in the python layer, the method is expecting the vector field to exist
but the object passed in doesn't contain this field.

Located error from stack trace:

  File "/Library/Python/2.7/site-packages/imusim-0.2-py2.7-macosx-10.13-intel.egg/imusim/visualisation/rendering.py", line 187, in renderUpdate
    s.set(x=x, y=y, z=z)
  File "/Library/Python/2.7/site-packages/mayavi/tools/sources.py", line 106, in set
    self.update()
  File "/Library/Python/2.7/site-packages/mayavi/tools/sources.py", line 74, in update
    (self.scalars is not None or self.vectors is not None):
AttributeError: 'MLineSource' object has no attribute 'vectors'

This is my python code:

# Import symbols from IMUSim
from imusim.all import *


model = loadBVHFile('walk.bvh', CM_TO_M_CONVERSION)# the file is in the current directory and is loaded properly.

print(CM_TO_M_CONVERSION)
renderer = BodyModelRenderer(model)

start = model.startTime
end = model.endTime

animation = InteractiveAnimation(start, end, renderer) #failure point.

Full stack trace including C assertion problems.

/Library/Python/2.7/site-packages/pyface/ui/wx/action/action_item.py:367: wxPyDeprecationWarning: Call to deprecated item. Use :meth:`AddTool` instead.
  self.control_id, label, bmp, wx.NullBitmap, kind, tooltip, longtip, None
/Library/Python/2.7/site-packages/pyface/ui/wx/action/action_item.py:385: wxPyDeprecationWarning: Call to deprecated item __call__. Use :meth:`EvtHandler.Bind` instead.
  wx.EVT_TOOL(parent, self.control_id, self._on_tool)
Traceback (most recent call last):
  File "imusim_biovision.py", line 13, in <module>
    animation = InteractiveAnimation(start, end, renderer)
  File "/Library/Python/2.7/site-packages/imusim-0.2-py2.7-macosx-10.13-intel.egg/imusim/visualisation/rendering.py", line 72, in __init__
    r.renderUpdate(self.time)
  File "/Library/Python/2.7/site-packages/imusim-0.2-py2.7-macosx-10.13-intel.egg/imusim/visualisation/rendering.py", line 187, in renderUpdate
    s.set(x=x, y=y, z=z)
  File "/Library/Python/2.7/site-packages/mayavi/tools/sources.py", line 106, in set
    self.update()
  File "/Library/Python/2.7/site-packages/mayavi/tools/sources.py", line 74, in update
    (self.scalars is not None or self.vectors is not None):
AttributeError: 'MLineSource' object has no attribute 'vectors'
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/atexit.py", line 24, in _run_exitfuncs
    func(*targs, **kargs)
wxAssertionError: C++ assertion "GetEventHandler() == this" failed at /Users/robind/projects/buildbots/macosx-vm6/dist-osx-py27/Phoenix/ext/wxWidgets/src/common/wincmn.cpp(478) in ~wxWindowBase(): any pushed event handlers must have been removed
Error in sys.exitfunc:
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/atexit.py", line 24, in _run_exitfuncs
    func(*targs, **kargs)
wx._core.wxAssertionError: C++ assertion "GetEventHandler() == this" failed at /Users/robind/projects/buildbots/macosx-vm6/dist-osx-py27/Phoenix/ext/wxWidgets/src/common/wincmn.cpp(478) in ~wxWindowBase(): any pushed event handlers must have been removed

Let me know if you have any ideas on how to fix this.

Thanks.
Cheers.