def makeInteractiveMesh(mesh_data: MeshData) -> 'pywim.geom.tri.Mesh':
import pywim
int_mesh = pywim.geom.tri.Mesh()
verts = mesh_data.getVertices()
for i in range(mesh_data.getVertexCount()):
int_mesh.add_vertex(i, verts[i][0], verts[i][1], verts[i][2])
faces = mesh_data.getIndices()
if faces is not None:
for i in range(mesh_data.getFaceCount()):
v1 = int_mesh.vertices[faces[i][0]]
v2 = int_mesh.vertices[faces[i][1]]
v3 = int_mesh.vertices[faces[i][2]]
int_mesh.add_triangle(i, v1, v2, v3)
else:
for i in range(0, len(int_mesh.vertices), 3):
v1 = int_mesh.vertices[i]
v2 = int_mesh.vertices[i + 1]
v3 = int_mesh.vertices[i + 2]
int_mesh.add_triangle(i // 3, v1, v2, v3)
# Cura keeps around degenerate triangles, so we need to as well
# so we don't end up with a mismatch in triangle ids
int_mesh.analyze_mesh(remove_degenerate_triangles=False)
return int_mesh
def _toTriMesh(self, mesh_data: MeshData) -> trimesh.base.Trimesh:
indices = mesh_data.getIndices()
if indices is None:
# some file formats (eg 3mf) don't supply indices, but have unique vertices per face
indices = numpy.arange(mesh_data.getVertexCount()).reshape(-1, 3)
return trimesh.base.Trimesh(vertices=mesh_data.getVertices(),
faces=indices,
vertex_normals=mesh_data.getNormals())
