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PtInRect
- 这是我写的一个实现点选中多边形的数值算法，算法进行了特别设计，速度很快，可以判断点在浮点型的多变形中或在多边形外，可以移植到UNIX或linux平台，因为这两个平台没有CRect的PtInRect() 和 CRgn的PtInRgn（）函数，这是一个很高效的算法-This is the one I wrote to achieve Polygon click the numerical algorithm, the algorithm specifically designed, very fas
Grass4Beginners
- The grass documentation for beginners, and Grass is one of the largest GIS open source application. Widely spread in Europe, hopefully in the future, open source will be growing the same speed as it is in Europe. Now let begin with the basic manipula
OSGISMG
- gvSIG是一个开源的桌面地理信息系统，同时也是开发地理信息系统一个强有力的工具。它包含许多功能如空间数据分析，地图编辑，Map设计等。gvSIG得到了西班牙一些政府和公司的参与并基于GPL许可证发布。gvSIG能够很好得工作在windows和linux平台之上。gvSIG支持其它GIS系统经常使用到的一些空间数据标准格式(shapefile,DXF,DWG,DGN,ECW,MrSID,TIFF,JPG2000等)。gvSIG遵循OGC(Open Geospatial Consortium)标准
QGIS
- QGIS是一个用户界面友好的桌面地理信息系统，可运行在Linux、Unix、Mac OSX和 Windows等平台之上。它的官方主页是：http://www.qgis.org/-QGIS is a user-friendly desktop geographic information systems, can run on Linux, Unix, Mac OSX and Windows and other platforms. It' s official home page i
Gis_Installation.General
- Gis-Installation Information for Proj4, Gdal, Grass, Qgis. Instructions for compiling from source on a Linux/Ubuntu system Links as to where to download the source and the needed packages from other source. Extensive pictured samples of many ty
Gis_Installation.Gdal
- Gis-Installation Information for Proj4 only Instructions for compiling from source on a Linux/Ubuntu system Intended for people with less experience in compiling projects and gis (gdal, cs2cs, grass,qgis) usage
Gis_Installation.Grass
- Gis-Installation Information for Grass only Instructions for compiling from source on a Linux/Ubuntu system Intended for people with less experience in compiling projects and gis (gdal, cs2cs, grass,qgis) usage
Gis_Installation.Proj4
- Gis-Installation Information for Proj4 (cs2cs) only Instructions for compiling from source on a Linux/Ubuntu system Intended for people with less experience in compiling projects and gis (gdal, cs2cs, grass,qgis) usage
Gis_Installation.QGis
- Gis-Installation Information for QGis only Instructions for compiling from source on a Linux/Ubuntu system Intended for people with less experience in compiling projects and gis (gdal, cs2cs, grass,qgis) usage