Clutter-free Visualization of Large Point Symbols at Multiple Scales by Offset Quadtrees

Clutter-free Visualization of Large Point Symbols at Multiple Scales by Offset Quadtrees

To address the cartographic problems in map mash-up applications in the Web 2.0 context, this paper studies a clutter-free technique for visualizing large symbols on Web maps. Basically, a quadtree is used to select one symbol in each grid cell at each zoom level. To resolve the symbol overlaps betw...

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Bibliographic Details
Main Authors: ZHANG Xiang, WANG Shaodong, WANG Yuxia
Format: Article
Language:zho
Published: Surveying and Mapping Press 2016-08-01
Series:Acta Geodaetica et Cartographica Sinica
Subjects:
clutter reduction
multi-scale visualization
large symbols
quadtree
real-time Web mapping
Online Access:http://html.rhhz.net/CHXB/html/2016-8-983.htm

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http://html.rhhz.net/CHXB/html/2016-8-983.htm

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