In: Computing and Informatics, vol. 24, no. 3
A Hierarchical Component-based WebGIS and Its Key Technologies
Zhuoqun XU - Yingwei W. LUO - Li DING - Wenjun WANG
ISSN 1335-9150 (print)
ISSN 2585-8807 (online)
Year, pages: 2005, 281-296
A practical hierarchical component-based WebGIS model referred to as Geo-Union is presented. Geo-Union consists of four layers: storage layer, service layer, component layer and application layer. Service layer is partitioned into another two layers: Geo-Union client and Geo-Union server. The architectures and object diagram of each layer in Geo-Union are discussed in details. After that, four key technologies adopted in Geo-Union (spatial data model, ORDB, spatial index and spatial cache) are summarized and analyzed, especially the spatial cache framework of Geo-Union. At last, some future works in WebGIS, such as interoperability, security, distributed computing and intelligent computing, are indicated and simply explored.
How to cite:
XU, Z., W. LUO, Y., DING, L., WANG, W. 2005. A Hierarchical Component-based WebGIS and Its Key Technologies. In Computing and Informatics, vol. 24, no.3, pp. 281-296. 1335-9150.
XU, Z., W. LUO, Y., DING, L., WANG, W. (2005). A Hierarchical Component-based WebGIS and Its Key Technologies. Computing and Informatics, 24(3), 281-296. 1335-9150.
Keywords: Component, WebGIS, hierarchical model, geo-union, spatial cache, spatial index