class Union(geo_field) Availability: PostGIS, Oracle, SpatiaLite This method returns a GEOSGeometry object comprising the union of every geometry in the queryset. Please note that use of Union is processor intensive and may take a significant amount of time on large querysets. Note If the computation time for using this method is too expensive, consider using Collect instead. Example: >>> u = Zipcode.objects.aggregate(Union(poly)) # This may take a long time. >>> u = Zip

class RasterField RasterField is currently only implemented for the PostGIS backend.

class PolygonField

class PointField

class MultiPolygonField

class MultiPointField

class MultiLineStringField

class MakeLine(geo_field) Availability: PostGIS, SpatiaLite Returns a LineString constructed from the point field geometries in the QuerySet. Currently, ordering the queryset has no effect. Changed in Django 1.10: SpatiaLite support was added. Example: >>> qs = City.objects.filter(name__in=('Houston', 'Dallas')).aggregate(MakeLine('poly')) >>> print(qs['poly__makeline']) LINESTRING (-95.3631510000000020 29.7633739999999989, -96.8016109999999941 32.7820570000000018)

class LineStringField

GeoQuerySet.union(geom) Deprecated since version 1.9: Use the Union function instead. Returns the union of the geographic field with the given geometry in an union attribute on each element of the GeoQuerySet.