The following IBM Informix DataBlade modules use the R-tree access method:
This DataBlade module is designed to manage spatio-temporal data with global content, such as metadata associated with satellite images.
The DataBlade module creates a variety of data types, such as GeoPoint and GeoObject, as well as a variety of functions that operate on the data types, such as Intersects and Outside. It also provides an operator class, called GeoObject_ops, so you can create R-tree indexes on columns of data type GeoObject, and the Nearest function to allow you to perform nearest-neighbor searches.
This DataBlade module also manages spatio-temporal data. It treats the earth as a flat map and uses planimetric (flat-plane) geometry. The Spatial DataBlade module is best used for regional data sets and applications.
The DataBlade module creates a variety of data types, such as ST_LineString and ST_Polygon, as well as a variety of functions that operate on the data types, such as ST_Distance and ST_Overlaps. It also provides an operator class, called ST_Geometry_Ops, so you can create R-tree indexes on columns of spatial data types, and the SE_Nearest and SE_NearestBBox functions to allow you to perform nearest-neighbor searches.
This DataBlade module is designed to store, manage, and manipulate video data and its metadata.
The DataBlade module creates a variety of data types, such as MedChunk, as well as a variety of functions that operate on the data types, such as Within and Overlap. It also provides an operator class, called MedChunk_ops, so you can create R-tree indexes on columns of type MedChunk.
Appendix A. Shapes3 Sample DataBlade Module describes the Shapes3 sample DataBlade module that defines four spatial data types and an operator class to allow you to create an R-tree index on columns of these data types. The sample module is not an IBM Informix product, but is provided as an example of creating an operator class.
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