def test_from_plane(self):
plane = Plane(origin=(1,2,3), xDir=(0,1,0), normal=(1,0,0))
cs = CoordSystem.from_plane(plane)
self.assertEqual(cs.origin, Vector(1,2,3))
self.assertEqual(cs.xDir, Vector(0,1,0))
self.assertEqual(cs.yDir, Vector(0,0,1))
self.assertEqual(cs.zDir, Vector(1,0,0))
def get_mate_center(self, angle=0):
"""
Mate at ring's center rotated ``angle`` degrees.
:param angle: rotation around z-axis (unit: deg)
:type angle: :class:`float`
:return: mate in ring's center rotated about z-axis
:rtype: :class:`Mate <cqparts.constraint.Mate>`
"""
return Mate(self, CoordSystem.from_plane(
cadquery.Plane(
origin=(0, 0, self.width / 2),
xDir=(1, 0, 0),
normal=(0, 0, 1),
).rotated((0, 0, angle)) # rotate about z-axis
))