Research on the Rendering of Basic Scale Topographic Maps in SLD
Based on the schema requirements of large-scale topographic maps,this paper takes several typical topographic map symbols as examples,proposes and discusses in detail how to use SLD to render topographic maps.From the service publish of spatial data,to the sym-bolic of layers in GeoServer,according to the different presentation forms of points,polylines and polygons and the rendering rules of SLD,take an example on three aspects:attribute-based symbolization,combined line type expression,and column symbol filling,to illustrate using a va-riety of descriptive features to achieve a rational map expression.
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