def select(self):
data = self.cleaned_data
bbox = data['bbox']
geom_wkt = bbox.ewkt
coord_srid = bbox.srid
original_srid = self.queryset.geo_field.srid
try:
tolerance = self.tolerances[data['z']]
except IndexError:
tolerance = self.tolerances[-1]
attrname = query.geo_field(self.queryset).name
self.queryset = query.filter_geometry(self.queryset,
intersects=geom_wkt)
if data['clip']:
self.queryset = self.queryset.intersection(geom_wkt)
attrname = 'intersection'
for obj in self.queryset:
geom = getattr(obj, attrname)
# Geometry must be in Web Mercator for simplification.
if geom.srid != self.tile_srid:
# Result of intersection does not have SRID set properly.
if geom.srid is None:
geom.srid = original_srid
geom.transform(self.tile_srid)
geom = geom.simplify(tolerance, preserve_topology=True)
geom.transform(coord_srid)
obj.geojson = geom.geojson
def select(self):
self.queryset = query.filter_geometry(self.queryset,
**self.cleaned_data)
def select(self):
self.queryset = query.filter_geometry(
self.queryset, **self.cleaned_data)
