根据椭球大地坐标求正常重力

用ERSI公司Arcengine组件,实现对地图的打印功能.-with ERSI company Arcengine components of the map to achieve the printing function.

提供几篇矢量文件空间索引的资料,主要针对大数据量的shp数据-Several vector file space to provide information on the index

GDAL最全，最权威帮助文档资料，大家有什么不懂的函数就在里面查-failed to translate。itis so bad today, i can t finish my teacher s task

应用VB+MO实现的简单的查询系统，可以实现图层的放大、缩小、图层控制以及图形和属性的查询,和打印功能.-VB MO realize the simple query system, the layer can be achieved to zoom, layer control, as well as graphics and attributes of inquiries and printing functions.

mapx开发的一个实用程序！-MapX development of a practical program!

湖南09年最新矢量地图(MapInfo格式)-Hunan Province in 2009 the latest vector map (MapInfo format)

地理信息系统很好的c#编程，学习的好资料~适合初学者使用。-Geographic Information System a good c# programming, learning good information ~ suitable for beginners to use.

This example programming for mapobject 2.4 like displaying SHP files or grid files (*.adf) with legend manipulation. So, you must install mapobject first for editing the sorce codes. But for the execute file you just run for it.-This is example programming for mapobject 2.4 like displaying SHP files or grid files (*.adf) with legend manipulation. So, you must install mapobject first for editing the sorce codes. But for the execute file you just run for it.

MapBasic程序，实现旅游地理信息查询系统-MapBasic procedures, the tourism Geographic Information System

一个集成地图分幅与编码的程序，可以方便的进行着方面的运算-an integrated map-rate and coding procedures, to facilitate the conduct of an operation