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

ptToLine() float mglnrel::ptToLine ( const Point2d &  a, const Point2d &  b, Point2d  pt, Point2d &  nearpt  ) static 计算点pt到线段ab的最近距离 参数 [in] a 线段的起点 [in] b 线段的终点 [in] pt 给定的测试点 [out] nearpt 线段上的最近点 返回 独立点到最近点的距离 函数调用图: 这是这个函数的调用关系图: