def get_transformed_soup2(self, solution=None):
"""
Get a transformed copy of soup2 based on the best alignment,
so it will align with unchanged soup1.
"""
if solution is None:
if self.best is None:
raise ValueError("must be called after finding solution")
solution = self.best
soup2x = self.soup2.copy()
soup2x.transform(v3.translation(-solution.center2))
soup2x.transform(v3.left_inverse(solution.rot_matrix))
soup2x.transform(v3.translation(solution.center2))
return soup2x
def center_vlist(vlist):
"""
Center a list of v3 vectors and return (center, centered_vlist_copy)
"""
center = v3.get_center(vlist)
center_matrix = v3.translation(-center)
return (center, [v3.transform(center_matrix, v) for v in vlist])