keith@milk9.uucp (Keith Williams) (05/12/89)
I am involved in a project that must deal with spatial information. By this I mean it must answer questions such as "what objects are within x miles of this region?" where the region is irregular. One way I have heard of attacking this problem is by using a quadtree database, or some other hierarchical decomposition of n-dimensional space. Does anyone know of a commercial database product that handles this? Please reply by mail; if others are interested, I will post a summary of the responses. Thank you. Keith M. Williams keith@tsca.istc.sri.com