Kui ruumilisel indekseerimisel lähtuda pinna kui rastri järkjärgulisest jaotamisest üha väiksemateks allosadeks, siis saame moodustada rastripõhiseid ruumi-indekseid (ingl grid index).
To help meet such requirements, the spatial index partitions the contents of the database, either on the basis of regular cells, or irregularly in a manner determined by the location of objects or the bounding rectangles of areal or linear objects.
