CONSTRUCTION OF TOPOLOGICAL RELATIONSHIP FOR WATER SUPPLY AND DRAINAGE NETWORK BASED ON EXTENDED ENTITY DATA
Xuan Wang · Shandong Nongye Daxue xuebao · 2012
Based on the analysis of extended entity data applied in AutoCAD,combining the correlation of pipe section and nodes in water supply and drainage network,a node ergodic query technology for water supply and drainage network was purposed in this paper.The technology can construct topological relationship for water supply and drainage network automatically based on derivation of adjacency matrix through storing nodes information in the form of spare matrix triples in extended pipe section data.