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。...

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.

一个MFC类实现图钉功能；可以用在GIS的应用程序中；derived from CWnd.-MFC realize a pushpin-type function can be used in GIS applications derived from CWnd.

利用mapobject 开发的mo的点线编辑程序 希望使用mapobject的朋友们能用的着-use Lotus Development mo point line editor wants to use Lotus friends with usable

利用Mapx+Delphi编写电子地图的实例，自己变成时可直接放置mapx控件，这样更简单-Mapx Delphi use electronic maps example, when they become mapx placed directly controls, which is more simple

二维图像的平移变换，主要是直线，圆和平面图形的平移变换。-Transform two-dimensional image of the translation, mainly straight, round and flat graphics translation transform.

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.

基于MO组件，实现图和多媒体属性库之间的热链接，很简单。-MO-based components, the realization of plans and multi-media properties of the hot links between the Treasury, is very simple.

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

OpenGIS协会 OGC 制定的关于地理实体结构、方法的实现标准，这里给出了COM/OLE的实现规范，包括点、线、面、空间参考系统等一系列的实现标准规范，有COM和CORBA两种技术形式。可供开发组件GIS系统或深入学习GIS实体实现的人员参考-OGC OpenGIS Association on the development of the geographical entity structure, methods of achieving the standards, Here is a COM/OLE achieving the standard, including point, line, surface, Spatial Reference System Implementation of a series of standards and norms, COM and CORBA two forms of technology. Components for the development of GIS or GIS-depth study to achieve the entity reference

地球经纬度输入（转换）控件，需要使用本人已上传的另一个控件NumEdit。 自己可以添加方法以支持更多的地理坐标转化-Earth coordinates input (conversion) controls, the need to use I have uploaded another NumEdit controls. Their methods can be added to support more into the geographic coordinates