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Refs #24688, #27497 -- Corrected docs: distance's 'spheroid' option isn't PostGIS specific.

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Tim Graham 2017-01-06 07:55:00 -05:00 committed by GitHub
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15
docs/ref/contrib/gis/geoquerysets.txt
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@ -596,11 +596,12 @@ and a distance value (either a number in units of the field, a
<ref/models/expressions>`). To pass a band index to the lookup, use a 3-tuple <ref/models/expressions>`). To pass a band index to the lookup, use a 3-tuple
where the second entry is the band index. where the second entry is the band index.
With PostGIS, on every distance lookup but :lookup:`dwithin`, an optional On every distance lookup except :lookup:`dwithin`, an optional element,
element, ``'spheroid'``, may be included to tell GeoDjango to use the more ``'spheroid'``, may be included to use the more accurate spheroid distance
accurate spheroid distance calculation functions on fields with a geodetic calculation functions on fields with a geodetic coordinate system.
coordinate system (e.g., ``ST_Distance_Spheroid`` would be used instead of
``ST_Distance_Sphere``). The simpler ``ST_Distance`` function is used with On PostgreSQL, the ``'spheroid'`` option uses ``ST_Distance_Spheroid`` instead
of ``ST_Distance_Sphere``. The simpler ``ST_Distance`` function is used with
projected coordinate systems. Rasters are converted to geometries for spheroid projected coordinate systems. Rasters are converted to geometries for spheroid
based lookups. based lookups.
@ -608,6 +609,10 @@ based lookups.
The ability to pass an expression as the distance value was added. The ability to pass an expression as the distance value was added.
.. versionadded:: 1.11
Support for the ``'spheroid'`` option on SQLite was added.
.. fieldlookup:: distance_gt .. fieldlookup:: distance_gt
``distance_gt`` ``distance_gt``