mesh.py

# Nikita Akimov
# interplanety@interplanety.org
#
# GitHub
#    https://github.com/Korchy/bpy_plus


class Mesh:
    """ Abstract class for working with meshes

    """

    @staticmethod
    def tris(obj) -> int:
        """ Return a number of triangles in the mesh object

        :param obj: mesh
        :type obj: bpy.types.Object
        :return: number of triangles in the mesh object
        :rtype: int

        """
        return sum(len(polygon.vertices) - 2 for polygon in obj.data.polygons)

    @staticmethod
    def apply_transforms(obj):
        """ Apply all transformations (Translation, Rotation, Scale) to object

        :param obj: mesh
        :type obj: bpy.types.Object

        """
        matrix_world = obj.matrix_world.copy()
        for vert in obj.data.vertices:
            vert.co = matrix_world @ vert.co
        obj.matrix_world.identity()