Function plane

lib/matplotlib/tests/test_colors.py:1141–1149

Create a plane whose normal vector is at the given azimuth and elevation.

(azimuth, elevation, x, y)

    """

    def plane(azimuth, elevation, x, y):
        """
        Create a plane whose normal vector is at the given azimuth and
        elevation.
        """
        theta, phi = _azimuth2math(azimuth, elevation)
        a, b, c = _sph2cart(theta, phi)
        z = -(a*x + b*y) / c
        return z

    def angled_plane(azimuth, elevation, angle, x, y):
        """