A rectangle specified with double values.
Deletes the geometries in mCachedGeometries.
extent for which there are cached geometries
bool geometry(QgsFeatureId fid, QgsGeometry &geometry)
fetch geometry from cache, return true if successful
cache of the committed geometries retrieved for the current display
void cacheGeometry(QgsFeatureId fid, const QgsGeometry &geom)
store a geometry in the cache