clipLine cross2Beeline cross2Line cross2LineV crossLineAbc crossLineBeeline isBetweenLine isBetweenLine2 isBetweenLine3 isColinear isColinear2 isConvex isIntersect isIntersectProp isLeft isLeft2 isLeftOn isLeftOn2 isProjectBetweenLine isProjectBetweenRayline ptInArea PtInAreaRet ptToBeeline ptToBeeline2 ptToLine

ptToBeeline2() float mglnrel::ptToBeeline2 ( const Point2d &  a, const Point2d &  b, Point2d  pt, Point2d &  ptPerp  ) static 计算点pt到无穷直线ab的距离 参数 [in] a 无穷直线的起点 [in] b 无穷直线的终点 [in] pt 给定的测试点 [out] ptPerp 直线上的垂足 返回 独立点到垂足的距离 函数调用图: 这是这个函数的调用关系图: