常用地图投影转换公式。包括高斯投影、墨卡托投影、通用墨卡托投影、兰勃特投影等投影转换的详细公式。...

mapobjects VB development maybe very useful for first MO developer

通过ArcMap的VBA环境下编程，初步了解ArcObjects组件库，力求能读懂、理解VBA实例程序，基本了解宏语言式GIS二次开发的基本思路和方法。-Through ArcMap

处理dem的东东，不错，请大家试用 -dem handle the Eastern, yes, please probation probation

应用背景15°有限差分偏移建立在波动方程或简化了的波动方程差分基础上的偏移方法。15度偏移差分法实现地震波偏移。反射地震方法是根据在地面上以一定方式进行弹性波激发，并在地面的一定范围（孔径）内记录来自地下弹性分界面的反射波来研究地下地质岩层结构及其物性特征的一种方法。关键技术本代码建立在波动方程或简化了的波动方程差分基础上的偏移方法。常用的有15°差分法和45°...15°时间偏移方程为式中c为波速，τ为以双程时间表示的深度，t，x和P参见“叠前部分偏移”条件。

GIS、MapInfo与MapBasic学习教程，让读者尽快掌握相关的软件功能。-GIS, MapInfo and MapBasic learning tutorials to allow readers to quickly grasp the relevant software.

MapX之VC设置非地球坐标系, 【环境】：vc6+mapx4.5+win2k+sp3 【提示】：CoordSys.set设置非地球坐标系时，必须定义坐标范围 -MapX Zhi VC set up in the earth coordinate system, the environment : vc6 mapx4.5 win2k sp3 suggested : CoordSys.set set up in the earth coordinate system, the scope must be defined coordinates

3d分析，需要AO，安装VB-3d, AO need to install VB

MoNetBroker是对ESRI MapObjects开发包产品的扩展，它以OCX控件和类型库的方式提供给那些熟悉MapObjects的开发人员，帮助他们利用MapObjects中的数据图层，方便地实现几何网络的连通性分析、非连通分析、两点路径分析、多点路由分析等强大的功能。MoNetBroker可以紧密并方便地与MapObjects相结合，实现高效的网络连通性分析和路径分析等功能。并且具有结点转向和线路单行控制、末梢点线选择等丰富的处理能力。-MoNetBroker of ESRI MapObjects Development Kit product expansion, which was OCX controls and type library available to those familiar with MapObjects developers, to help them use MapObjects the data layer, to facilitate the realization of the geometric network connectivity analysis, non-connected, 2:00 path analysis, multiple points of the road analysis by the powerful functions. MoNetBroker can work closely to facilitate the integration and MapObjects to achieve effective network connectivity analysis and pathway analysis capabilities. And with node shift and line single control point line peripheral rich choice of the handling capacity.

用JAVAScript画点，用于webGIS开发。-Painting point to use JavaScript for WebGIS development.

mapx5+vb6的开发指南 以mapx为核心 详细介绍其功能，作图，到二次开发。-mapx5+ vb6 guide to the development of mapx detail at the core of its functions, mapping to the second development.