Considering the particular characteristics of automation equipment in urban power systems, the topological correlation method is adopted in this algorithm.

A method of setting up topological relations for objects with broad boundary;

The study of topological relation between linear-area object and geometric metrics;

The automatic topological relation generating algorithm based on examination;

Study on Topological Relationship and Spatial Reasoning in GIS;

A method for creating topological relationship among the constituent patches of compound surface is addressed.

In order to implement Boolean operations on open or closed mesh models with different complexities correctly,a new algorithm for 3D mesh model by using Boolean operations is presented,which is based on the orientability of manifold meshes and the topological relationship of the meshes.

Automatic search of topology relation in water supply looped pipe networks;

By synthetically analyzing the interrelated research on using DTM(Digital Terrain Mode) for a road project,a compact way of the improved "direction search" triangle net is put forward,then according to the sheet character of a road,the topology relation of edge-triangle is built.

For the purpose of constructing the topology relation among triangles in STL files rapidly,the algorithm of reconstructing topological relation is presented.

Establishment of topology relationships and maintenance of visualization of mine ventilation network;

For the present GIS of urban flow pipe network management, the problems in the valve-turnoff analysis are analyzed,and the method of building the topology relationship of data and the controlling relationship among the valves are put forward.

In order to enhance the efficiency of land use data quality checking and realize the intelligent topology relationship testing between feature classes,the paper has analyzed the topology relationship classes of the land use database and proposed a topology relationship validity method based on rule(TRVR).