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2010•Cehui kexueRequires access

Research on the vector WebGIS realization based on SVG

Han Shuang-wang

Open publisher page 1 citations

Abstract

SVG is a sort of markuplanguages based on XML,it is used to describe two dimensional vector graphics and vector/raster mixed graphics.Though SVG is not a standard to release spatial data of geography,but it can be widely applied to WebGIS,thus the vector WebGIS can be realized.Because SVG describes vector picture by the format of simple text,there is a small amount of SVG data,and SVG can be compressed through GZIP,so the WebGIS that be constructed based on SVG can reduce transmission load of the network and accelerate the display speed.SVG can support JavaScript by itself,and SVG can be mapped into the tree structure in the memory through DOM,so the client can realize the zoom,the roaming,the querying,and the control for map layers with operating DOM by JavaScript.

About this research paper

What this paper is about

SVG is a sort of markuplanguages based on XML,it is used to describe two dimensional vector graphics and vector/raster mixed graphics.Though SVG is not a standard to release spatial data of geography,but it can be widely applied to WebGIS,thus the vector WebGIS can be realized.Because SVG describes vector picture by the format of simple text,there is a small amount of SVG data,and SVG can be compressed through GZIP,so the WebGIS that be constructed based on SVG can reduce transmission load of the network and accelerate the display speed.SVG can support JavaScript by itself,and SVG can be mapped into the tree structure in the memory through DOM,so the client can realize the zoom,the roaming,the querying,and the control for map layers with operating DOM by JavaScript.

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OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

SVG is a sort of markuplanguages based on XML,it is used to describe two dimensional vector graphics and vector/raster mixed graphics.Though SVG is not a standard to release spatial data of geography,but it can be widely applied to WebGIS,thus the vector WebGIS can be realized.Because SVG describes vector picture by the format of simple text,there is a small amount of SVG data,and SVG can be compressed through GZIP,so the WebGIS that be constructed based on SVG can reduce transmission load of the network and accelerate the display speed.SVG can support JavaScript by itself,and SVG can be mapped into the tree structure in the memory through DOM,so the client can realize the zoom,the roaming,the querying,and the control for map layers with operating DOM by JavaScript.

Key concepts: Scalable Vector Graphics, Computer science, JavaScript, Vector graphics, XML, Raster graphics, Zoom, Vectorization (mathematics)

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