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======================
GeoDjango's admin site
======================
.. module:: django.contrib.gis.admin
:synopsis: GeoDjango's extensions to the admin site.
``GeoModelAdmin``
=================
.. class:: GeoModelAdmin
.. attribute:: default_lon
The default center longitude.
.. attribute:: default_lat
The default center latitude.
.. attribute:: default_zoom
The default zoom level to use. Defaults to 4.
.. attribute:: extra_js
Sequence of URLs to any extra JavaScript to include.
.. attribute:: map_template
Override the template used to generate the JavaScript slippy map.
Default is ``'gis/admin/openlayers.html'``.
.. attribute:: map_width
Width of the map, in pixels. Defaults to 600.
.. attribute:: map_height
Height of the map, in pixels. Defaults to 400.
.. attribute:: openlayers_url
Link to the URL of the OpenLayers JavaScript. Defaults to
``'https://cdnjs.cloudflare.com/ajax/libs/openlayers/2.13.1/OpenLayers.js'``.
.. attribute:: modifiable
Defaults to ``True``. When set to ``False``, disables editing of
existing geometry fields in the admin.
.. note::
This is different from adding the geometry field to
:attr:`~django.contrib.admin.ModelAdmin.readonly_fields`,
which will only display the WKT of the geometry. Setting
``modifiable=False``, actually displays the geometry in a map,
but disables the ability to edit its vertices.
``OSMGeoAdmin``
===============
.. class:: OSMGeoAdmin
A subclass of :class:`GeoModelAdmin` that uses a Spherical Mercator projection
with `OpenStreetMap <https://www.openstreetmap.org/>`_ street data tiles.
See the :ref:`OSMGeoAdmin introduction <osmgeoadmin-intro>`
in the tutorial for a usage example.
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