Mailing Lists
We are using GNU Mailman to manage our discussion groups and list archives.
[postgis-users]
[postgis-devel]
[postgis-commits]
Wiki
The PostGIS Wiki is a web space that allows readers to edit and add contenton the fly, and is a perfect place for things like mini tutorials, tipsand tricks and other snippets of information you pick up along the way.
Bug Tracker
We are using the Google Bug Tracker at code.google.com.
Search
Search the contents of the online documentation and mailing list archives.
Support
PostGIS is an open-source project, and support is available from a number of sources.
Commercial Support
For users who require professional support, development and consulting services, Refractions Research, the primary developers of PostGIS, provides a complete service offering. Please see the Refractions support information page for contact and pricing information.
Refractions has a support partner based in Germany that may also be able to serve your support needs in Europe. Click for information from Intevation (German language page).
Community Support
The email list and the PostGIS community in general are available for users with questions and comments on the project.
Online documentation and frequently asked questions lists are available.
An IRC channel is available: irc://chat.freenode.net/postgis
Other Links
- PostgreSQL
- PostGIS is an extension to the PostgreSQL relational database server.
- GEOS
- GEOS is the Geometry Engine: Open Source. It provides a robust set of topological operators in C++.
- MapServer
- Mapserver is an internet map generator which can use PostGIS as a geographic feature source.
- WKB4J
- WKB4J is a Java library for reading "well known binary" (WKB) binary arrays and converting them into geometry objects. Useful for high-performance Java PostGIS client software.
- GRASS GIS
- PostGIS is supported by the GRASS GIS 6 system.
- ZigGIS
- A PostGIS connector for ArcGIS.
- E00 -> PostGIS
- E00pg is a tool for converting ESRI-E00 coverages into PostgreSQL/PostGIS sql instructions.
- FreeGIS
- FreeGIS is a list of all the open-source GIS projects, from interactive GIS tools to foundation libraries.
- OGR Simple Features Library
- The OGR library provides C++ objects built using the OpenGIS simple feature specification as a guide. OGR includes a tool (ogr2ogr) which can convert geographic data between different formats and projections, including PostGIS.
- GiST in PostgreSQL
- PostGIS uses the GiST implementation in PostgreSQL to provide spatial indexing.
- Java Topology Suite (JTS)
- JTS provides robust implementation of the Simple Features Specification topological operators (intersection, union, overlaps, buffers).
- OpenGIS Consortium (OGC)
- The OpenGIS consortium creates GIS standards to propote software interoperability and open standards. PostGIS follows the relevant OpenGIS standards as much as possible.
- OGC Simple Features Specification for SQL
- The Simple Features Specification for SQL provides instructions on the base types and functions a spatial database must implement to be considered an OpenGIS compliant spatial database.
- R-Trees : A Dynamic Index Structure for Spatial Searching
- This seminal paper on spatial indexing is useful for people wanting to understand the PostGIS spatial indexing system.
- Nearest Neighbor Queries
- Approaches to finding nearest neighbors using spatial index structures, like quadtrees and R-Trees.