edits

Author: timgraham

.github/workflows/test-python-atlas-geo.yml

@@ -6,7 +6,8 @@ class Adapter(collections.UserDict):
 
     def __init__(self, obj, geography=False):
         """
-        Initialize on the spatial object.
+        Initialize on the spatial object per
+        https://www.mongodb.com/docs/manual/reference/geojson/.
         """
         if obj.__class__.__name__ == "GeometryCollection":
             self.data = {

django_mongodb_backend/gis/adapter.py

@@ -6,6 +6,26 @@ GeoDjango
 
 Django MongoDB Backend supports :doc:`GeoDjango<django:ref/contrib/gis/index>`.
 
+Each model field stores data as :doc:`GeoJSON objects <manual:reference/geojson>`.
+
+* :class:`~django.contrib.gis.db.models.PointField`
+* :class:`~django.contrib.gis.db.models.LineStringField`
+* :class:`~django.contrib.gis.db.models.PolygonField`
+* :class:`~django.contrib.gis.db.models.MultiPointField`
+* :class:`~django.contrib.gis.db.models.MultiLineStringField`
+* :class:`~django.contrib.gis.db.models.MultiPolygonField`
+* :class:`~django.contrib.gis.db.models.GeometryCollectionField`
+
+All fields have a :doc:`2dsphere index
+<manual:core/indexes/index-types/geospatial/2dsphere>` created on them.
+
+The :ref:`geospatial aggregation stage <geospatial-operators>` only supports one
+operator: :doc:`$geoNear <manual:reference/operator/aggregation/geoNear>`. You can use
+it :meth:`.raw_aggregate` queries.
+
+The :ref:`geospatial query operators <manual:geospatial-query-operators>` aren't
+supported.
+
 Configuration
 =============
 
@@ -20,7 +40,7 @@ Limitations
 
 - MongoDB doesn't support any spatial reference system identifiers
   (:attr:`BaseSpatialField.srid <django.contrib.gis.db.models.BaseSpatialField.srid>`)
-  besides 4326 (WGS84) .
+  besides `4326 (WGS84) <https://spatialreference.org/ref/epsg/4326/>`_.
 - None of the :doc:`GIS QuerySet APIs <django:ref/contrib/gis/geoquerysets>` (lookups,
   aggregates, and database functions) are supported.
 - :class:`~django.contrib.gis.db.models.RasterField` isn't supported.