Function project

src/ifcopenshell-python/ifcopenshell/draw.py:348–351

(xy, z=0.0)

            m44 = numpy.linalg.inv(m44)

            def project(xy, z=0.0):
                xyzw = m44 @ numpy.array(xy + [z, 1.0])
                xyzw[1] *= -1.0
                return (m4 @ xyzw)[0:3]

            def pythonize(arr):
                return tuple(map(float, arr))