Qualitative Representation and Reasoning of Combined Direction and Distance Relationships in Three-Dimensional GIS

Liu Xin, Liu Wen-bao, Li Cheng-ming. Qualitative Representation and Reasoning of Combined Direction and Distance Relationships in Three-Dimensional GIS. In International Conference on Computer Science and Software Engineering, CSSE 2008, Volume 1: Artificial Intelligence, December 12-14, 2008, Wuhan, China. pages 119-123, IEEE Computer Society, 2008. [doi]