In order to express the details of the topological relations between complex planar objects, the classic 9-intersection model is improved and the two extended 9-intersection models that based on decomposition ideas are proposed: the one 9-intersection model method that is decomposed into simple area has its advantage of simplification, but at the cost of complicated expressions; another 9-intersection model method that is decomposed into point-set, conforming well with the classical 9-intersection model, but has relatively complex calculations. Compared the expressive abilities between the two kinds of extened 9-intersection models and the classic 9-intersection model by examples. The results show that both the two extended 9-intersection models can give more accurately expression of the topological relations between details of the sub parts in complex planar objects, the expressive ability of 9-intersection model has been expanded and improved.
CHEN Zhanlong
,
FENG Qiqi
,
WU Xincai
. Representation Model of Topological Relations between Complex Planar Objects[J]. Acta Geodaetica et Cartographica Sinica, 2015
, 44(4)
: 438
-444
.
DOI: 10.11947/j.AGCS.2015.20130708
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