Hejhej,
using the classes ShapeFileIndexer and FidIndexer I've been able to create
feature and tree indices for an instance of IndexedShapefileDataStore so
that corresponding method isIndexed returns true.
I was also able to extract the generated rtree using the according
constructor and the tree file (GRX-extension).
However when searching the index with a given envelope it returns a list of
Data-elements and I have no clue at all what to do with them.
Here's the code hitherto:
// IndexedShapefileDataStore idx already created...
RTree r = new RTree(new FileSystemPageStore(treeIndexFile));
FeatureSource ftSource = idx.getFeatureSource(idx.getTypeNames()[0]);
FeatureIterator ftIterator = ftSource.getFeatures().features();
Feature ft = ftIterator.next();
// List<Data> neighbors = new ArrayList<Data>();
List neighbors = r.search(ft.getBounds()); // returns a list of Data
elements
// what to do know?
My objective is to use the rtree-index to speeden up the search for
neighbors in a polygon layer... However I can't make any sense of the
information (basically integer or long numbers) contained by the retrieved
data elements... Can anybody give me hint?
Thank you very much in advance.
Regards,
Markus
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