def ellipse_perimeter(r, c, r_radius, c_radius, orientation=0, shape=None):
 return _ellipse_perimeter(r, c, r_radius, c_radius, orientation, shape)

def ellipse_perimeter ( r , c , r_radius , c_radius , orientation = 0 , shape = None ) : return _ellipse_perimeter ( r , c , r_radius , c_radius , orientation , shape )
generate ellipse perimeter coordinates .