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- W2374772269 abstract "Geoinformation has been widely and deeply applied in many fields.The spatial query and analysis is one of the core characters of GIS(Geography Information System),and the key problem in the realization of spatial information services,such as Web Feature Service.How to provide effective spatial query and analysis functions in the framework of web map services is a challenging problem for designing and realizing web map services.This paper put forward a new idea of rasterization realization of spatial query and spatial analysis in web map services.Based on the introduction of design idea and prototype system structure,this paper detailedly discussed the generation method of rasterization index based on sub-pixel mapping engine.Subsequently,it presented the spatial relation judgment method(taking Overlap operator as example),and spatial overlapping analysis calculation method based on this index approach.It testified the advantages by comparing the accuracy of existed research results with results realized by the prototype system,and testing the concurrency performance." @default.
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- W2374772269 date "2011-01-01" @default.
- W2374772269 modified "2023-09-23" @default.
- W2374772269 title "Rasterization Realization of Spatial Query and Analysis in Web Map Services" @default.
- W2374772269 hasPublicationYear "2011" @default.
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