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

crossLineBeeline() bool mglnrel::crossLineBeeline ( const Point2d &  a, const Point2d &  b, const Point2d &  c, const Point2d &  d, Point2d &  ptCross, float *  pv = (float*)0, const Tol &  tolVec = Tol::gTol()  ) static 求线段和直线的交点 参数 [in] a 线段的起点 [in] b 线段的终点 [in] c 直线的起点 [in] d 直线的终点 [out] ptCross 交点 [out] pv 交点在直线上的参数，如果为NULL则忽略该参数 [in] tolVec 判断平行的容差，用到其矢量容差值 返回 是否有交点 函数调用图: