======================
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 `_ street data tiles.
    See the :ref:`OSMGeoAdmin introduction `
    in the tutorial for a usage example.