News
November 17, 2011
GIS Day is November 16th this year, making November 17th Post-GIS Day. How will you celebrate?
June 27, 2011
The PostGIS team is proud to announce the release of version
What is PostGIS?
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 ESRI's SDE or Oracle's Spatial extension. PostGIS follows the OpenGIS "Simple Features Specification for SQL" and has been certified as compliant with the "Types and Functions" profile.
PostGIS has been developed by Refractions Research as a project in open source spatial database technology.
PostGIS is released under the GNU General Public License. We continue to develop PostGIS, and have added user interface tools, basic topology support, data validation, coordinate transformation, programming APIs and much more.
Our list of future projects includes full topology support, raster support, networks and routing, three dimensional surfaces,
curves and splines and other features. Ask us about consulting services and implementing new features.
Case Studies
Learn how PostGIS is being used around the world.
UC Davis Soil Resource Laboratory
The US Davis Soil Resource Laboratory publishes soil inventory data for the southwest United States using PostGIS and Mapserver. Six months ago they were using shape files for spatial data storage. With PostGIS, their data is integrated in the database and new avenues of display and analysis have been opened for them.
Sistema de Información Territorial Estatal en Línea, México
SITEL, a project hosting a spatial data infrastructure, allows various government agencies to share data to be included in their own projects as health, security, urban furniture or mobility. Today, they've integrated over 1,910 vectorial layers plus another 70+ raster files, provided through PostGIS and WMS/WFS/WCS services with Mapserver.
With billion dollar satellites and PostGIS, the EU Joint Research Centre montitors fishing vessels in the North Atlantic and provides real-time reporting and mapping to decision makers and regulators.