大地坐标转换为球坐标

mapgis二次开发sdk，实例程序，有部分vb程序，献给mapgis二次开发的朋友。-mapgis secondary development sdk, examples of procedures, some vb procedures, mapgis dedicated secondary development of a friend.

包含打开栅格矢量文件，渲染图层，属性查询，等等的arcgis功能

这是一个用C语言做的关于最短路径的算法，请各位高手多多指教！-This is a C language on the shortest path algorithm, you master a great weekend!

在菜单中显示小图标,用c语言编写,下载之后请解压在c语言环境下运行-the small menu icon indicates that c language, please download after decompression in c-language environment to run

创建空间索引结构R树的源程序，解压后的文件中有readme文档。-create spatial index R-tree structure of the source, the paper after extracting a readme file.

基于物理的大气效果实时绘制，利用查询表的方法，对颜色进行实时的计算查找，可以用于大型的仿真系统中-Physics-based real-time rendering of atmospheric effects, using look-up table method for calculating real-time color to find, can be used in large-scale simulation system

ArcCatalog使用手册，使用于应用arcgis的使用-ArcCatalog user manual, for use in the application of the use of ArcGIS

MO开发车载GPS导航的应用实例。 MO开发车载GPS导航的应用实例。-MO development of automotive GPS navigation application. MO development of automotive GPS navigation application.

3维地理信息系统数据模型的设计，很好的例子帮你解决问题-3-dimensional GIS data model design, a good example to help you solve the problem

基于Java的逻辑回归实现，带有完整测试数据集