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《Acta Geodaetica et Cartographica Sinica》 2013-03
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The LOD Representation and TreeMap Visualization of Attribute Information in Thematic Mapping

AI Tinghua1,ZHOU Mengjie1,CHEN Yajie2 1.School of Resources and Environment Science,Wuhan University,Wuhan 430079,China;2.Ningbo Alatu Digital Science and Technology Center,Ningbo 315042,China  
A method for the LOD visualization of attribute information in thematic maps is proposed.The new hierarchical information visualization tool,namely the TreeMap in computer graphics field,is used to carry out the multi-level display of attribute information.The presented approach is able to adjust the level of structural details of the attribute information when changing the scale of thematic map.This study combines the Cartogram mapping model with TreeMap to establish the spatial location of the multi-level attribute information considering the topological properties among region polygons.This method provides the users with the strategy to visualize and cognize the attribute information at multi-levels.
【Fund】: 国家863计划(2012AA12A404);; 国家科技支撑计划(2012BAJ22B02-01)
【CateGory Index】: P208
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