postgis

-
For reasons you 'll see later , we classify PostGIS data as vector data .
我们将PostGIS数据归类为矢量数据,其原因将在下文介绍。
-
A GIS tool chain might include QGIS , the GRASS software suite , a3-D PostGIS database , and a map server delivering data sets and maps to users accessing mapping sites over the Internet .
GIS工具链可包括QGIS、GRASS软件套件、一个三维PostGIS数据库和一个向通过Internet访问地图网站的用户提供数据集和地图的地图服务器。