add_region_rt# MotorCAD.add_region_rt(radius, theta, region_name)# Add a region to the Motor-CAD geometry with an r, t (polar) coordinate system. If a region already exists, this method overwrites the existing region. Use degrees for angles. Parameters: radiusfloatRegion position for the radial coordinate. thetafloatRegion position for the angular coordinate in degrees. region_namestrName of the region.