stages.py 文件源码

def cart2polar(x, y, degrees=True):
    """
    Convert cartesian X and Y to polar RHO and THETA.
    :param x: x cartesian coordinate
    :param y: y cartesian coordinate
    :param degrees: True = return theta in degrees, False = return theta in
        radians. [default: True]
    :return: r, theta
    """
    rho = ma.sqrt(x ** 2 + y ** 2)
    theta = ma.arctan2(y, x)
    if degrees:
        theta *= (180 / math.pi)

    return rho, theta