def test_z_rotate(self):
alpha = radians(25)
t = Matrix44.z_rotate(alpha)
x = diag((1., 1., 1., 1.))
x[0, 0] = cos(alpha)
x[1, 0] = -sin(alpha)
x[0, 1] = sin(alpha)
x[1, 1] = cos(alpha)
self.assertTrue(equal_matrix(t, x))
def write(filename, sponge, merge=False):
dwg = ezdxf.new('R2000')
transform = Matrix44.chain(Matrix44.z_rotate(math.radians(45)),
Matrix44.translate(5, 3, 4))
sponge.render(dwg.modelspace(), merge=merge, matrix=transform)
dwg.saveas(filename)