A Topology Chain Model for Describing Line-Line Spatial Relations
LIU Wan-zeng
CHEN Jun
DENG Ka-zhong
ZHAO Yong
ZHANG Wei-fu
ZANG Zhe-yi
Abstract：To meet the demands for detecting the spatial conflicts between line objects in the spatial database,a topology chain model of line-line spatial relations was investigated.Based on the idea of line-line composed-assembled,the topology invariants are classified into the local to-pological relation and intersection sequence,and a refined description model of line-line spatial relations is presented.The results show that this model can integrate the topological relations with order relations and metric relations to describe the detailed topological relations,left-right relations and metric relations,such as intersecting angle,number of intersection point,dis-tance of two intersection points,and areas of the region formed by two intersecting curves,etc.which can meet the demands for detecting the spatial conflicts between line objects.
Keywords：spatial conflictsspatial relationsthe topology chain modelspatial database
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 75-79 )