With the development of GIS and the widespread use of massive data, the access speed of Spatial Data is reduced. Create Spatial Index can improve the Spatial Query and access efficiency of data.

Spatial Index in GIS is relative to Field Index. The traditional Field Index can not meet the needs of rapid positioning of Spatial Data because of the unique location correlation of Spatial Data, so it is necessary for Spatial Index to provide rapid access to location-related data.

Supported Index Type

Describes the Index Types supported by SuperMap, including Q-tree Index, R-tree Index, Mapsheet Index, and Dynamic Index.

R-tree Index

This paper introduces the implementation principle, characteristics and application of R-tree Index.

Q-tree Index

This paper introduces the implementation principle and application of Q-tree Index.

Mapsheet Index

This paper introduces the implementation principle and application of Mapsheet Index.

Dynamic Index

This paper introduces the realization principle, characteristics and application of Dynamic Index.

An example of index storage

Four storage structures of Spatial Index are introduced respectively.

Rebuild Spatial Index

This paper introduces the implementation principle, characteristics and application of R-tree Index.

Manage Spatial Index

Describes how to manage the index of one or more Datasets, including viewing the Spatial Index information of the Dataset and creating the Spatial Index.