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

ptToBeeline() float mglnrel::ptToBeeline ( const Point2d &  a, const Point2d &  b, const Point2d &  pt  ) 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 返回 点到无穷直线的距离