一点到一直线的距离计算，各种情况都考虑进去了

功能： 反查汉字的区位码，或逐区显示汉字。 说明： 在源代码中，不仅演示了GB内码的操作，还演示了drag-drop功能的实现。-functions : anti-Chinese investigation in an area code, or case-by-district shows Chinese characters. Description : In the source code, not only demonstrated the GB internal codes, the operation also demonstrated a drag-drop performance.

vb实现点状符号的绘制，并实现放大缩小功能，-vb realize punctate drawing symbols and realize zoom function,

利用MAPX实现的电子地图显示、查询及定位等功能，本源码为DLL，不包含MAPX控件。-MAPX realize the use of an electronic map display, query and positioning and other functions, the source code for the DLL, do not contain MAPX control.

一个用VC开发的电子地图系统，一个用VC开发的电子地图系统-The development of a VC with an electronic map system, a VC with the development of electronic map system

一个开源面向对象通用地图投影程序，支持多种地图投影算法。-An open source object-oriented common map projection procedures, supports a wide range of map projection algorithm.

基于MAPGIS平台的中国地学断面数字化图形库的建立(caj 格式)-MAPGIS China to study digital graphics section of the library building (CAJ format)

数字摄影测量学的影像重采样，包括直接采样法和间接采样法-digital photographic surveying the image resampling, including direct and indirect sampling sampling method

TIN生成等高线的代码。 我是菜鸟一个，高手们看来可能是小菜一碟，但确实花了我不少时间，希望大家互相学习，共同进步。-i m a small bird .it may seem easy for other strong birds,but truly take me much time .i wish wo good good study ,toghter up.

一些ARCgis的学习资料和源码！ 有点帮助，对新学的-ArcGis learning some information and source code! A little help, for the new school

MapX的中文培训教程.可以用VC实现对MapX的调用,实现GIS编程.-MapX Chinese Training Guide. VC can use MapX right call, GIS programming.