def normals(self):
"""Return surface normals for all faces."""
return tuple(go.normal_from_points(pts) for pts in self.points)
def normal(self):
"""Return surface normal for the first face."""
return go.normal_from_points(self.points[0])
def _surface_type_from_points(self):
normal = go.normal_from_points(self.points[0])
angle_to_z_axis = go.vector_angle_to_z_axis(normal)
return surfacetype.SurfaceTypes.by_normal_angle_and_points(
angle_to_z_axis, self.points[0])()
def normals(self):
"""Return surface normals for all faces."""
return tuple(go.normal_from_points(pts) for pts in self.points)
def normal(self):
"""Return surface normal for the first face."""
return go.normal_from_points(self.points[0])
def _surface_type_from_points(self):
normal = go.normal_from_points(self.points[0])
angle_to_z_axis = go.vector_angle_to_z_axis(normal)
return surfacetype.SurfaceTypes.by_normal_angle_and_points(angle_to_z_axis,
self.points[0])()
