基于组合导航技术的管道地理坐标定位算法

用VC实现，类似于GIS中的放大缩小功能的程序，可供初学者参考，有指定的详细说明和示例代码程序。

应用背景物理大地测量学中，经常用到两点间的方位角，已知球面两点大地经纬度坐标，求解两点间的球面方位角。假设地球为球形进行的计算。关键技术通过两点的大地经纬度坐标，计算两点球面坐标方位角。需要输入文件INPUT，输入格式 纬度 经度 大地高（或正高），可以是一组数据也可以是连续的多个数据，排列顺序是按列三列数据。计算出的方位角是以第一个点到第二个点的方位角。例如，假如序号为1,2,3,4……。那么求出的方位角为α1-2，α2-3，α3-4……。输出文件为fangweijiao.dat

 This project allows you to track cell phones periodically. For instance every minute or every five minutes. You can watch the cell phone being tracked in real time using google maps and you can store and reload routes easily. You have the choice of two server stacks. Either using asp.net and sql server or using php and mysql. Historically, devs have downloaded the asp.net server project 2 to 1 over the php project. I have included both now in the same download but you only need to use one.

实现了shape数据的加载和GIS基本功能，以及图层管理功能（图层的上下移动、删除等）-realized the shape of data loading and basic GIS functions, and the layer management functions (the next layer of Mobile, delete, etc.)

MapInfo MapX是一个用来做地图化工作的OCX控件，它可以很容易地在您的应用程序中加入强大的制图功能。它可以把您的数据用地图的形式显示出来，更易于理解。地图形式可以比简单的图表、图形提供更多的信息，而且描述地图比描述数据表更加简单迅速。本章主要对mapx的安装和在编程语言中的使用进行讲解。-MapInfo MapX is used as a map of the OCX controls, it can very easily in your application into a powerful mapping function. It could use your data in the form of maps, and easier to understand. Maps can be more than a simple form of charts, graphics provide more information, and the descriptions over the map data sheet describes more simply and rapidly. This chapter primarily MapX in the installation and programming language on the use.

一个计算面的平均高程的程序，可以求得任意形状的面的平均高程。-A calculation of the average surface elevation of the procedure, you can find any shape of the average surface elevation.

ArcGIS Server 9.2安装配置注意事项！-ArcGIS Server 9.2 installation configuration Attention!

范在SuperMap Objects 中如何编辑手柄控制功能-Fan SuperMap Objects How to handle control functions Edit

云南昆明市09年最新矢量地图(MapInfo格式)-Kunming vector maps like map (MapInfo format)

《GIS开发者》2005年第3期，总第6期. 描述了gis人的前途的.-"GIS" 2005 No. 3, No. 6 overall. Gis describes the future.