Extrude Base function in Python

[jeahyuklee]

Hello!
I would like to use the extrude base feature from MeshInspector in Python. On the website, this functionality automatically makes the mesh watertight after the extrusion. However, when I reviewed the documentation and available code, I could only find implementations using makeDegenerateBandAroundRegion to identify the boundary and verts_for_move to move vertices, which doesn't automatically handle making the mesh watertight.

How can I implement this feature in Python, achieving the same automated watertight results as MeshInspector does?

def extrude_mesh(mesh_path, extrude_mesh_path):
    mesh = load_mesh_if_needed(mesh_path)
    total_faces = mesh.topology.numValidFaces()

    faces_to_extrude = mrmeshpy.FaceBitSet()
    faces_to_extrude.resize(total_faces, False)

    for face_id in range(total_faces):
        faces_to_extrude.set(mrmeshpy.FaceId(face_id), True)

    mrmeshpy.makeDegenerateBandAroundRegion(mesh, faces_to_extrude)

    verts_for_move = mrmeshpy.getIncidentVerts(mesh.topology, faces_to_ex

[Grantim]

Hello!

Please try fixUndercuts function:

from meshlib import mrmeshpy as mm

mesh = mm.loadMesh("path_to_mesh.stl")
direction = mm.Vector3f(0,0,-1)
voxelSize = mm.suggestVoxelSize( mesh, 5e6  )
extrusion = voxelSize * 10
mm.fixUndercuts( mesh, -direction, voxelSize, extrusion  )
# if you want to extrude only some faces use `faces_to_extrude`
# mm.fixUndercuts( mesh, faces_to_extrude, -direction, voxelSize, extrusion  )
mm.saveMesh( mesh, "path_to_result_mesh.stl" )