def find_face_by_mapping(tris):
# the mid point
centerPoint = SimpleMath.tuple_numproduct(
1.0 / 3.0,
SimpleMath.tuple_plus(
ModelData.dictVertices[tris[0]],
SimpleMath.tuple_plus(ModelData.dictVertices[tris[1]], ModelData.dictVertices[tris[2]]),
),
)
# mapping by distance
for fKey in ModelData.dictFaces:
fVertices = ModelData.dictFaces[fKey].get_vids()
if SimpleMath.is_point_in_triangle_3(
centerPoint,
(
ModelData.dictVertices[fVertices[0]],
ModelData.dictVertices[fVertices[1]],
ModelData.dictVertices[fVertices[2]],
),
):
return fKey
