.sbn and .sbx – both containing the spatial index of the features

.sbn and .sbx - the files that store the spatial index of the features.

Use shptree to generate a spatial index on your shapefile.

Embodiments of the invention provide devices and techniques for partitioning a spatial index.

Such information is used to build a spatial index (306) of specific physical locations for a geocoded result set.

A spatial index is a type of extended index that allows you to index a spatial column.

Depending on the amount of information that can be displayed, features in a spatial index may the thinned (Table 7) for presentation.

The method includes a step of superposing a spatial index onto the set of difference points, and generating polygon vertices from a plurality of adjacent elements of index.

The regular database includes at least one spatial index that is accessed by the interface layer to translate the spatial query into the regular query for processing by the regular database.

In one embodiment, a particular number of best entities are found in a database with a spatial index that satisfy both spatial criteria and entity filtering criteria.