本人用VC编写的由水系图求水系密度程序源码，对GIS开发的朋友可能有些帮助，目前只支持灰度分析，彩色分析正在编写中。-I VC prepared by the water stream density map for procedures source, on the development of the GIS may help to a friend, only to support the gray analysis, color analysis being prepared.

使用vc实现GIS的简单矢量图形绘制与常见GIS类图形文件的打开功能 （1）利用鼠标绘制点、线、多边形、圆等 （2）图形的颜色与填充功能 （3）mif、shp格式文件的打开-Dev in VC++, Which implements the simple Vector Graphics Drawing and opening normal GIS format file. 1. Mouse-Driven of Point, Line, Polygen, Circle, etc. 2. G