bpy_extras submodule (bpy_extras.mesh_utils)

bpy_extras.mesh_utils.mesh_linked_uv_islands(mesh)

Splits the mesh into connected polygons, use this for separating cubes from other mesh elements within 1 mesh datablock.

Parameters:mesh (bpy.types.Mesh) – the mesh used to group with.
Returns:lists of lists containing polygon indices
Return type:list
bpy_extras.mesh_utils.mesh_linked_triangles(mesh)

Splits the mesh into connected triangles, use this for separating cubes from other mesh elements within 1 mesh datablock.

Parameters:mesh (bpy.types.Mesh) – the mesh used to group with.
Returns:lists of lists containing triangles.
Return type:list
bpy_extras.mesh_utils.edge_face_count_dict(mesh)
Returns:dict of edge keys with their value set to the number of faces using each edge.
Return type:dict
bpy_extras.mesh_utils.edge_face_count(mesh)
Returns:list face users for each item in mesh.edges.
Return type:list
bpy_extras.mesh_utils.edge_loops_from_edges(mesh, edges=None)

Edge loops defined by edges

Takes me.edges or a list of edges and returns the edge loops

return a list of vertex indices. [ [1, 6, 7, 2], …]

closed loops have matching start and end values.

bpy_extras.mesh_utils.ngon_tessellate(from_data, indices, fix_loops=True, debug_print=True)

Takes a polyline of indices (ngon) and returns a list of face index lists. Designed to be used for importers that need indices for an ngon to create from existing verts.

Parameters:
  • from_data (list or bpy.types.Mesh) – either a mesh, or a list/tuple of vectors.
  • indices (list) – a list of indices to use this list is the ordered closed polyline to fill, and can be a subset of the data given.
  • fix_loops (bool) – If this is enabled polylines that use loops to make multiple polylines are delt with correctly.
bpy_extras.mesh_utils.triangle_random_points(num_points, loop_triangles)

Generates a list of random points over mesh loop triangles.

Parameters:
  • num_points – the number of random points to generate on each triangle.
  • loop_triangles (bpy.types.MeshLoopTriangle, sequence) – list of the triangles to generate points on.
Returns:

list of random points over all triangles.
Return type:

list