trimesh_isolines

trimesh_isolines(M, scalars, isovalues)

Compute isolines on a triangle mesh.

Parameters:

Mtuple[list[list[float]], list[list[int]]]

A mesh represented by a tuple of (vertices, faces) where vertices are 3D points and faces are triangles

scalarslist[float]

A list of scalar values, one per vertex of the mesh.

isovalueslist[float]

The values at which to compute the isolines. Each value should be within the range of the scalar field.

Returns:

tuple[list[list[float]], list[list[int]], list[int]]

A tuple containing:

• The coordinates of the isoline vertices

• The edges between these vertices forming the isolines

• An index per edge indicating to which isoline it belongs

Notes

The input mesh should be triangulated for accurate results.