How to check if two meshes intersect with each other?

[Johnny Tam]

Hi PyMeshLab!
I want to use generate_boolean_intersection to return a boolean if two meshes intersect with each other.

I followed an example here: https://github.com/jk4011/jhutil/blob/1381fcf30e7ad9660109454eab55d13286c44f3a/jhutil/three_d.py#L269

to load two identical meshes and apply generate_boolean_intersection filter, like this

# Save intersection of two meshes
import pymeshlab
ms = pymeshlab.MeshSet()

# Add the input meshes to the MeshSet
ms.load_new_mesh('1510259A_1-201.ply')
ms.load_new_mesh('1510259A_1-201.ply')

# Apply the boolean intersection filter
ms.apply_filter(
    'generate_boolean_intersection',
    first_mesh=0,
    second_mesh=1,
    transfer_face_color=False,
    transfer_face_quality=False,
    transfer_vert_color=False,
    transfer_vert_quality=False)

However, the output is an empty dict {}
May I know how to interpret this result?
Thanks!

[XuliaDS]

The boolean operator doesn't return any value but you can get the new mesh id by calling
ms.current_mesh_id()

after applying the boolean. In the link https://github.com/jk4011/jhutil/blob/1381fcf30e7ad9660109454eab55d13286c44f3a/jhutil/three_d.py#L269

you can see that after boolean, it is saving:
ms.save_current_mesh(file_loc)

where current_mesh has the id that ms.current_mesh_id() would return.

[stale]

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