add asVector distanceSquare distanceTo get isDegenerate isEqualTo kInvalid kOrigin length negate offset offset operator!= operator* operator* operator* operator* operator*= operator*= operator+ operator+ operator+ operator+= operator+= operator- operator- operator- operator-= operator/ operator/= operator== Point2d Point2d Point2d polarPoint rulerPoint rulerPoint scaleBy scaleBy set set subtract subtract transform x y

get() void Point2d::get ( long &  xx, long &  yy  ) const 得到四舍五入后的坐标 利用该函数可以将矢量转换为POINT、CPoint值 参数 [out] xx 四舍五入后的X坐标分量 [out] yy 四舍五入后的Y坐标分量 函数调用图: