是一个多边形分割的程序.用VB写的.是ＧＩＳ分析用的．-polygon is a separate procedure. VB writes. GIS is used in analysis.

VB 操作将Gis数据导入空间数据库，FR

这是一款可用于VB、VC++的CAD绘图OCX控件，文件不大，却具备通用平面CAD功能，方便的处理各种矢量图形，并提供交换文件及二次开发接口。适用于CAD/GIS等图形相关的软件开发。-This is a can be used for VB, VC++ CAD OCX drawing control, file is small, but with the general plane CAD function, convenient to deal with all kinds of vect

包括了在c#和VB源代码。利用GPS卫星来确定当前位置,原子时间同步电脑时钟,坐标和投影库,本文将教你如何生成自己的地图。-In part one of this series, I described how to write an interpreter for raw GPS NMEA data. Part two described how to monitor and enforce GPS precision data to develop commercial-quality so