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Strategic Study of CAE >> 2013, Volume 15, Issue 5

Description and reasoning of integrated topological and directional relation of bodies in 3D space

1. College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao, Shandong 266510, China;

2. Chinese Academy of Surveying and Mapping, Beijing 100830, China

Funding project:国家自然科学基金项目(40471109,41201381);国家高技术研究发展计划项目(2009AA121405,2009AA121402);地理空间信息工程国家测绘局重点实验室开放基金项目(201130);海岛(礁)测绘技术国家测绘地理信息局重点实验室开放基金项目(2011B12) Received: 2013-03-21 Available online: 2013-05-13 13:48:34.000

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Abstract

To improve the uniqueness location information described by spatial relationship and accuracy of spatial relationship reasoning result,the description model of the integrated topological and directional relations in three-dimensionall(3D) space was developed. The topological directional regions were described by Allen interval pair[(R1,R2,R3)], where R1,R2 and R3 are Allen interval relations between object and reference in X, Y and Z axis projection respectively. According to definition of integrated topological and direction relation, the qualitative reasoning of integrated topological and directional relations were studied. Empirical examples were provided to show the qualitative reasoning process and results of topological direction relationships for some classical cases. Combined tables of the integrated topological and directional relations were obtained when the topological relations were disjoint in 3D space.

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