摘要：
// 获取交点 bool CCommonFunction::getCross(AcGePoint3d& line1_pt1, AcGePoint3d& line1_pt2, AcGePoint3d& line2_pt1,AcGePoint3d& line2_pt2, AcGePoint3d& pt) 阅读全文
摘要：
//若点a大于点b,即点a在点b顺时针方向,返回true,否则返回falsebool PointCmp(AcGePoint2d& a,AcGePoint2d& b,AcGePoint2d& center){ if (a.x >= 0 && b.x < 0) return true; if (a.x 阅读全文