基于MapX控件实现线切割区域功能

A Cutting Region with Line Arithmetic for Designing MapX Based Accessories

"线切割区域"是地图编辑中一种非常有用的功能,文中在对规则凸多边形、不规则凹多边形、多连通区域3种最基本的区域线切割分析的基础上,给出了一种在MapInfo公司MapX控件基础上实现线切割区域功能的算法。通过实例可以发现,算法具有实现切割效率高、适应性强的优点。

There is a very useful need to cut region with a line or polyline in map editing. Based on the analysis of three basic instances, such as regular protruding polygon, irregular concave polygon and multiconnected region in line cutting, a MapInfo's MapX based arithmetic which can be used to cut region with line or polyline is presented. It can be found through an instance that the arithmetic has some advantages such as high efficiency in incision and strong adaptability, etc.