65 lines
2.8 KiB
Plaintext
65 lines
2.8 KiB
Plaintext
PostGIS Licensing
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==================
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This file attempts to include all licenses that apply within the PostGIS
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source tree, in particular any that are supposed to be exposed to the end
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user for credit requirements for instance.
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PostGIS General
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----------------
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In general PostGIS may be distributed and/or modified under the conditions
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of the GNU General Public License, either version 2 or (at your option) any
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later version. Please refer to the COPYING file for details.
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PostGIS has dependencies on other libraries which are not under GPL and
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that are commonly distributed with PostGIS core libraries. In general
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these are dynamically linked libraries. Libraries are as follows:
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Proj4 - https://proj.org -- X/MIT License
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GEOS - https://libgeos.org -- LGPL License
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LibXML - https://xmlsoft.org/ -- X/MIT License
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GDAL - https://gdal.org/ -- X/MIT Style License
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SFCGAL -- https://oslandia.gitlab.io/SFCGAL/ -- GPL/V2+
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SFCGAL relies on CGAL https://www.cgal.org/ -- GPL and LGPLV3
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Source files included with PostGIS not under GPL
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------------------------------------------------
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-- The following loader/dumper files are derivative works or direct ports
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of ShapeLib which is under an X/MIT License: loader/dbfopen, safileio.*,
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shapefil.h, shpopen.c (copyrighted by Frank Warmerdam and Even Rouault).
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-- loader/getopt.* are under AT&T public domain (Copyright (c) 1984, 1985 AT&T).
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-- Doc/xsl files
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These are under a BSD Style license
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-- liblwgeom/lookup3.c is released under Public Domain by Bob Jenkins, May 2006.
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-- deps/ryu (see LICENSE in folder) is released under the Apache 2.0 license;
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alternatively, in can be used under the Boost 1.0 license. Copyrighted by Ulf
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Adams and contributors.
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-- deps/uthash (see LICENSE in folder) is released under a simplified BSD
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license. Copyright (c) 2005-2018, Troy D. Hanson.
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-- deps/wagyu (see LICENSE.README in folder) includes code released under the
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ISC license (copyrighted by Mapbox) and the Boost Software License (copyrighted
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by Angus Johnson and Mapbox). Copyright for "almost_equal.hpp" file is held by
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Google Inc and its license is listed at the top of that file.
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The documentation for PostGIS is under a creative commons share-alike
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3.0 license. http://creativecommons.org/licenses/by-sa/3.0/
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Data used in documentation falls in one of the following categories
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- Many of the examples in the topology and tiger geocoder section utilize
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data from US Census Tiger data 2010
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https://www.census.gov/geo/www/tiger/tgrshp2010/tgrshp2010.html
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- data or snapshots generated by community
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- many images autogenerated by PostGIS documentation generator (which
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utilizes ImageMagick) as described
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http://trac.osgeo.org/postgis/wiki/DevWikiDocNewFeature
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- PostGIS raster output functions such as the ST_AsPNG etc.
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- raster/vector data from MassGIS: http://www.mass.gov/mgis/laylist.htm
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