Description: To meet the demands for detecting t he spatial conflict s between line object s in t he
spatial database , a topology chain model of line2line spatial relations was investigated. Based on
t he idea of line2line composed2assembled , t he topology invariant s are classified into the local to2
pological relation and intersection sequence , and a refined description model of line2line spatial
relations is p resented. The result s show t hat t his model can integrate t he topological relations
wit h order relations and met ric relations to describe the detailed topological relations , lef t2right
relations and met ric relations , such as intersecting angle , number of inter section point , dis2
tance of two intersection point s , and areas of the region formed by two intersecting curves ,
etc , which can meet t he demands for detecting the spatial conflict s between line object s.
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线线空间关系描述的拓扑链模型1.pdf
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