Commit e541bbd0 authored by Claude Paroz's avatar Claude Paroz
Browse files

Removed doc reference to pre-1.5 PostGIS

parent 7fd1f3a6

docs/ref/contrib/gis/model-api.txt

+7 −8
Original line number Diff line number Diff line
@@ -107,10 +107,10 @@ a flat surface is a straight line, the shortest path between two points on a cur 
surface (such as the earth) is an *arc* of a `great circle`__. [#fnthematic]_  Thus,

additional computation is required to obtain distances in planar units (e.g.,

kilometers and miles).  Using a geographic coordinate system may introduce

complications for the developer later on.  For example, PostGIS versions 1.4

and below do not have the capability to perform distance calculations between

non-point geometries using geographic coordinate systems, e.g., constructing a

query to  find all points within 5 miles of a county boundary stored as WGS84.

complications for the developer later on. For example, Spatialite does not have

the capability to perform distance calculations between geometries using

geographic coordinate systems, e.g. constructing a query to  find all points

within 5 miles of a county boundary stored as WGS84.

[#fndist]_



Portions of the earth's surface may projected onto a two-dimensional, or
@@ -124,10 +124,9 @@ calculations. 
.. note::



    If you wish to perform arbitrary distance queries using non-point

    geometries in WGS84, consider upgrading to PostGIS 1.5. For

    better performance, enable the :attr:`GeometryField.geography`

    keyword so that :ref:`geography database type <geography-type>`

    is used instead.

    geometries in WGS84 in PostGIS and you want decent performance, enable the

    :attr:`GeometryField.geography` keyword so that :ref:`geography database

    type <geography-type>` is used instead.



Additional Resources: