public float crossProduct(Vector2d v) {
float ret = touchvgPINVOKE.Vector2d_crossProduct(swigCPtr, Vector2d.getCPtr(v));
if (touchvgPINVOKE.SWIGPendingException.Pending) throw touchvgPINVOKE.SWIGPendingException.Retrieve();
return ret;
}