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A progressive line simplification algorithm
Authors:Guo Qingsheng  Christoph Brandenberger  Lorenz Hurni
Institution:School of Resource and Environment Science , Wuhan University , Wuhan , China
Abstract:An application of line simplification considering spatial knowledge is described. A method for identifying potential conflict regions, in order to avoid the self-intersection of generalized, lines, is also discussed. Further-more, a new progressive line simplification algorithm is presented. From the view point of spatial cognition, a spatial hierarchical structure is proposed, and its application to construction of spatial knowledge related to a line is explained.
Keywords:progressive line simplification  map generalization  spatial knowledge  spatial cognitive  spatial hierarchical structure  potential conflict region  self-intersection of a line
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