Web Map Service: Difference between revisions

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* GetFeatureInfo – if a layer is marked as 'queryable' then you can request data about a coordinate of the map image.
* DescribeLayer – returns the feature types of the specified layer or layers, which can be further described using [[Web Feature Service|WFS]] or [[Web Coverage Service|WCS]] requests. This request is dependent on the Styled Layer Descriptor (SLD) Profile of WMS.<ref>{{cite web |url=http://www.opengeospatial.org/standards/sld |title=Styled Layer Descriptor (SLD) Profile of the OpenGIS Web Map Service |publisher=OGC |access-date=2015-07-01}}</ref>
* GetLegendGraphic – returnreturns an image of the map's legend image, giving a visual guide to map elements.
 
All communication is served through HTTP.