Serve vectorial map layers with Django
Project description
django-geojson
INSTALL
pip install django-geojson
USAGE
GeoJSON layer view
Very useful for web mapping :
from djgeojson.views import GeoJSONLayerView class MeetingLayer(GeoJSONLayerView): model = Meeting fields = ('title', 'datetime',) # Options srid = 4326 # projection precision = 4 # float simplify = 0.5 # generalization
Consume the vector layer as usual, for example, with Leaflet :
var layer = L.GeoJSON(); map.addLayer(layer); $.getJSON('{% url viewname %}', function (data){ layer.addData(data); });
GeoJSON template filter
Will work either for a model, a geometry field or a queryset.
{% load geojson_tags %} var feature = {{ object|geojsonfeature }}; var geom = {{ object.geom|geojsonfeature }}; var collection = {{ object_list|geojsonfeature }};
Dump GIS models
Register the serializer in your project :
# settings.py SERIALIZATION_MODULES = { 'geojson' : 'djgeojson.serializers' }
Command-line dumpdata can export files, viewable in GIS software like QGis :
django dumpdata --format=geojson yourapp.Model > export.geojson
Works with loaddata as well, which can now import GeoJSON files.
LICENSE
Lesser GNU Public License
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