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PostGIS 1.2.0

  Date Added: September 17, 2010  |  Visits: 940

PostGIS

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PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRIs SDE or Oracles Spatial extension. PostGIS follows the OpenGIS "Simple Features Specification for SQL" and will be submitted for conformance testing at version 1.0. PostGIS has been developed by Refractions Research Inc as a research project in open source spatial database technology. PostGIS is released under the GNU General Public License. Our list of future projects includes enhanced technology for data loading and dumping, user interface tools for direct data access and manipulation, and support for advanced topologies at the server side, such as coverages, networks, and surfaces. There are now several open source tools which work with PostGIS. The uDig project is working on a full read amd write desktop environment that can work with PostGIS directly. For internet mapping, the University of Minnesota Mapserver can use PostGIS as a data source. The GeoTools Java GIS toolkit has PostGIS support, as does the GeoServer Web Feature Server. GRASS now supports PostGIS as a data source, through the PostGRASS driver. The JUMP Java desktop GIS viewer has a simple plugin for reading PostGIS data, and the QGIS desktop has good PostGIS support. PostGIS data can be exported to several output GIS formats using the OGR C++ library and commandline tools (and of cource with the bundled Shape file dumper). And of course any language which can work with PostgreSQL can work with PostGIS -- the list includes Perl, PHP, Python, TCL, C, C++, Java, and more. Installation: Un-tar the PostGIS tar-ball in the contrib directory of your PostgreSQL source tree. You must untar the PostGIS source there or the Makefile will not work. You must have the PL/pgSQL prodedural language installed before installing PostGIS. cd contrib gunzip postgis-0.9.0.tar.gz tar xvf postgis-0.9.0.tar cd postgis-0.9.0 make make install createlang plpgsql yourtestdatabase psql -d yourtestdatabase -f postgis.sql psql -d yourtestdatabase -f spatial_ref_sys.sql. PostGIS spatial database extension for PostgreSQL.

Requirements: No special requirements
Platforms: Linux
Keyword: Data Database Database Engines Postgis Postgresql Source Support Work
Users rating: 0/10

License: Freeware Size: 1.4 MB
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