The TRbwQuadTree component provides methods for storing and then rapidly retrieving data in an X, Y coordinate system based on the proximity of the stored data to the location of interest. The TRbwOctTree component provides methods for storing and then rapidly retrieving data in an X, Y, Z coordinate system based on the proximity of the stored data to the location of interest. The components are useful as part of a GIS system. You can retrieve data at a particular location, or at all locations within a circle, sphere, or block. Help files are included.