Edit file File name : LICENSE.TXT Content :PostGIS Licensing ================== This file attempts to include all licenses that apply within the PostGIS source tree, in particular any that are supposed to be exposed to the end user for credit requirements for instance. PostGIS General ---------------- In general PostGIS may be distributed and/or modified under the conditions of the GNU General Public License, either version 2 or (at your option) any later version. Please refer to the COPYING file for details. PostGIS has dependencies on other libraries which are not under GPL and that are commonly distributed with PostGIS core libraries. In general these are dynamically linked libraries. Libraries are as follows: Proj4 - http://proj.osgeo.org -- X/MIT License GEOS - http://geos.osgeo.org -- LGPL License LibXML - http://xmlsoft.org/ -- X/MIT License GDAL - http://gdal.osgeo.org/ -- X/MIT Style License Source files included with PostGIS not under GPL ------------------------------------------------ -- The following loader/dumper files are derivative works or direct ports of ShapeLib which is under an X/MIT License: loader/dbfopen,safileio.*, shapefil.h, shpopen.c -- These are under AT&T public domain (someone should probably verify) loader/getopt.* -- Doc/xsl files These are under a BSD Style license The documentation for PostGIS is under a creative commons share-alike 3.0 license. http://creativecommons.org/licenses/by-sa/3.0/ Data used in documentation falls in one of the following categories - Many of the examples in the topology and tiger geocoder section utilize data from US Census Tiger data 2010 http://www.census.gov/geo/www/tiger/tgrshp2010/tgrshp2010.html - data or snapshots generated by community - many images autogenerated by PostGIS documentation generator (which utilizes ImageMagick) as described http://trac.osgeo.org/postgis/wiki/DevWikiDocNewFeature - PostGIS raster output functions such as the ST_AsPNG etc. - raster/vector data from MassGIS: http://www.mass.gov/mgis/laylist.htm Save