Error when put merge_meshes=False in babylonjs

[younesdessia]

• I'm submitting a ...

  • [X] bug report
  • [ ] feature request

• What is the current behavior? When I put merge_meshes=False iin babylonjs call, I get this error:

Traceback (most recent call last): File "/home/younes/.local/lib/python3.9/site-packages/IPython/core/interactiveshell.py", line 3442, in run_code exec(code_obj, self.user_global_ns, self.user_ns) File "<ipython-input-3-390ebcf17e5e>", line 1, in <module> volume_.babylonjs(merge_meshes=False) File "/home/younes/Bureau/DESSIA_WORK/volmdlr/volmdlr/core.py", line 1469, in babylonjs babylon_data = self.babylon_data(merge_meshes=merge_meshes) File "/home/younes/Bureau/DESSIA_WORK/volmdlr/volmdlr/core.py", line 1447, in babylon_data return helper_babylon_data(babylon_data, display_points) File "/home/younes/Bureau/DESSIA_WORK/volmdlr/volmdlr/core.py", line 193, in helper_babylon_data positions = mesh["positions"] KeyError: 'positions'

I reproduce this on simple model (volume model with closedsheel as primitives) and also volumemiodel with assembly.

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem Avoid reference to other packages

• What is the expected behavior?

• What is the motivation / use case for changing the behavior?

• Possible fixes

• Please tell us about your environment:

  • branch: master
  • commit: last
  • python version: 3.9