Updated links to latest version of PostGIS docs.
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@ -166,7 +166,7 @@ to be in the units of the field.
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.. note::
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In PostGIS 1.5, ``ST_Distance_Sphere`` does *not* limit the geometry types
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In PostGIS, ``ST_Distance_Sphere`` does *not* limit the geometry types
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geographic distance queries are performed with. [#fndistsphere15]_ However,
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these queries may take a long time, as great-circle distances must be
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calculated on the fly for *every* row in the query. This is because the
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@ -312,9 +312,9 @@ Aggregate PostGIS Oracle SpatiaLite
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.. rubric:: Footnotes
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.. [#fnwkt] *See* Open Geospatial Consortium, Inc., `OpenGIS Simple Feature Specification For SQL <http://www.opengis.org/docs/99-049.pdf>`_, Document 99-049 (May 5, 1999), at Ch. 3.2.5, p. 3-11 (SQL Textual Representation of Geometry).
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.. [#fnewkb] *See* `PostGIS EWKB, EWKT and Canonical Forms <http://postgis.net/docs/manual-1.5/ch04.html#EWKB_EWKT>`_, PostGIS documentation at Ch. 4.1.2.
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.. [#fnewkb] *See* `PostGIS EWKB, EWKT and Canonical Forms <http://postgis.net/docs/manual-2.1/using_postgis_dbmanagement.html#EWKB_EWKT>`_, PostGIS documentation at Ch. 4.1.2.
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.. [#fngeojson] *See* Howard Butler, Martin Daly, Allan Doyle, Tim Schaub, & Christopher Schmidt, `The GeoJSON Format Specification <http://geojson.org/geojson-spec.html>`_, Revision 1.0 (June 16, 2008).
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.. [#fndistsphere15] *See* `PostGIS 1.5 documentation <http://postgis.net/docs/manual-1.5/ST_Distance_Sphere.html>`_ on ``ST_distance_sphere``.
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.. [#fndistsphere15] *See* `PostGIS documentation <http://postgis.net/docs/manual-2.1/ST_Distance_Sphere.html>`_ on ``ST_distance_sphere``.
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.. [#fnmysqlidx] *See* `Creating Spatial Indexes <http://dev.mysql.com/doc/refman/5.6/en/creating-spatial-indexes.html>`_
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in the MySQL Reference Manual:
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@ -445,7 +445,7 @@ From within the Application Stack Builder (to run outside of the installer,
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:menuselection:`Start --> Programs --> PostgreSQL 9.x`), select
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:menuselection:`PostgreSQL Database Server 9.x on port 5432` from the drop down
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menu. Next, expand the :menuselection:`Categories --> Spatial Extensions` menu
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tree and select :menuselection:`PostGIS 1.5 for PostgreSQL 9.x`.
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tree and select :menuselection:`PostGIS X.Y for PostgreSQL 9.x`.
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After clicking next, you will be prompted to select your mirror, PostGIS
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will be downloaded, and the PostGIS installer will begin. Select only the
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@ -13,7 +13,7 @@ might also need additional libraries, see `PostGIS requirements`_.
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when using GeoDjango with PostGIS.
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.. _psycopg2: http://initd.org/psycopg/
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.. _PostGIS requirements: http://www.postgis.org/documentation/manual-2.0/postgis_installation.html#id554707
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.. _PostGIS requirements: http://postgis.net/docs/manual-2.1/postgis_installation.html#install_requirements
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On Debian/Ubuntu, you are advised to install the following packages:
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postgresql-x.x, postgresql-x.x-postgis, postgresql-server-dev-x.x,
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@ -26,9 +26,9 @@ Building from source
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First download the source archive, and extract::
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$ wget http://download.osgeo.org/postgis/source/postgis-2.0.3.tar.gz
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$ tar xzf postgis-2.0.3.tar.gz
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$ cd postgis-2.0.3
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$ wget http://download.osgeo.org/postgis/source/postgis-2.1.5.tar.gz
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$ tar xzf postgis-2.1.5.tar.gz
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$ cd postgis-2.1.5
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Next, configure, make and install PostGIS::
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@ -183,17 +183,15 @@ details.
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.. note::
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Geography support is limited only to PostGIS 1.5+, and will
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force the SRID to be 4326.
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Geography support is limited to PostGIS and will force the SRID to be 4326.
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.. _geography-type:
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Geography Type
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^^^^^^^^^^^^^^
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In PostGIS 1.5, the geography type was introduced -- it provides
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native support for spatial features represented with geographic
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coordinates (e.g., WGS84 longitude/latitude). [#fngeography]_
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The geography type provides native support for spatial features represented
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with geographic coordinates (e.g., WGS84 longitude/latitude). [#fngeography]_
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Unlike the plane used by a geometry type, the geography type uses a spherical
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representation of its data. Distance and measurement operations
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performed on a geography column automatically employ great circle arc
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@ -214,7 +212,7 @@ available for geography columns:
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For more information, the PostGIS documentation contains a helpful section on
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determining `when to use geography data type over geometry data type
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<http://postgis.net/docs/manual-1.5/ch04.html#PostGIS_GeographyVSGeometry>`_.
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<http://postgis.net/docs/manual-2.1/using_postgis_dbmanagement.html#PostGIS_GeographyVSGeometry>`_.
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``GeoManager``
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==============
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@ -252,5 +250,5 @@ for example::
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.. [#fnsrid] Typically, SRID integer corresponds to an EPSG (`European Petroleum Survey Group <http://www.epsg.org>`_) identifier. However, it may also be associated with custom projections defined in spatial database's spatial reference systems table.
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.. [#fnharvard] Harvard Graduate School of Design, `An Overview of Geodesy and Geographic Referencing Systems <http://www.gsd.harvard.edu/gis/manual/projections/fundamentals/>`_. This is an excellent resource for an overview of principles relating to geographic and Cartesian coordinate systems.
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.. [#fnthematic] Terry A. Slocum, Robert B. McMaster, Fritz C. Kessler, & Hugh H. Howard, *Thematic Cartography and Geographic Visualization* (Prentice Hall, 2nd edition), at Ch. 7.1.3.
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.. [#fndist] This limitation does not apply to PostGIS 1.5. It should be noted that even in previous versions of PostGIS, this isn't impossible using GeoDjango; you could for example, take a known point in a projected coordinate system, buffer it to the appropriate radius, and then perform an intersection operation with the buffer transformed to the geographic coordinate system.
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.. [#fngeography] Please refer to the `PostGIS Geography Type <http://postgis.net/docs/manual-1.5/ch04.html#PostGIS_Geography>`_ documentation for more details.
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.. [#fndist] This limitation does not apply to PostGIS.
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.. [#fngeography] Please refer to the `PostGIS Geography Type <http://postgis.net/docs/manual-2.1/using_postgis_dbmanagement.html#PostGIS_Geography>`_ documentation for more details.
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@ -36,10 +36,10 @@ When GeoDjango's spatial backend initializes on PostGIS, it has to perform
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an SQL query to determine the version in order to figure out what
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features are available. Advanced users wishing to prevent this additional
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query may set the version manually using a 3-tuple of integers specifying
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the major, minor, and subminor version numbers for PostGIS. For example,
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to configure for PostGIS 1.5.2 you would use::
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the major, minor, and micro version numbers for PostGIS. For example,
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to configure for PostGIS X.Y.Z you would use::
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POSTGIS_VERSION = (1, 5, 2)
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POSTGIS_VERSION = (X, Y, Z)
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Obtaining sufficient privileges
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-------------------------------
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