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ＰＯＳＴＧＩＳ／ＯＬＡＰ，是空间数据挖掘工具的ＤＬＬ文件，-POSTGIS/OLAP, spatial data mining tools is the DLL file,

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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。

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vb6 环境下MapX5的应用开发应用及缩小、放大、图层控制等功能实现代码。可以参考其编写你属于自己的代码-VB6 environment MapX5 application development applications and narrow, enlarge, layer control and other functions to achieve code. You can refer to the preparation of their own code

vc开发GIS一书的源代码，为了解GIS原理非常有帮助，通过该代码可以开发自己的GIS系统

地图图元修改工具 可批量修改选定图层的地图图元Style。-map plan amendments yuan batch tools can be selected to amend the map layer map yuan Style.

Delphi实现的高斯投影转换算法，包含使用范例及使用说明，含注释，值得学习，推荐-Delphi realize the conversion of the Gaussian projection algorithm, including the use of examples and instructions, including the Notes, it is worth learning, Recommended

几个实现经纬度与投影坐标计算的函数.可以供程序员参考-achieve several projection coordinates of longitude and latitude and calculation functions. Can reference for programmers

Delphi实效编程百例的随书源代码 这是其中的程序控制部分-Delphi programming effectiveness of the 100 cases with books that the source code is part of the program control