Styled Layer Descriptor


Styled Layer Descriptor

A Styled Layer Descriptor (SLD) is an XML schema specified by the Open Geospatial Consortium (OGC) for describing the appearance of map layers. It is capable of describing the rendering of vector and raster data. A typical use of SLDs is to instruct a Web Map Service (WMS) of how to render a specific layer.

In August 2007 the SLD specification has been split up into two new OGC specifications [ [http://www.opengeospatial.org/press/?page=pressrelease&year=0&prid=306 OGC press release about Symbology Encoding and SLD] ] :
* Symbology Encoding
* Styled Layer DescriptorStyled Layer Descriptor Specification now only contains the protocol for communicating with a WMS about how to style a layer. The actual description of the styling is now exclusively described in the Symbology Encoding Implementation Specification.

Editors

Open Source

* [http://wald.intevation.org/projects/atlas-framework AtlasStyler SLD Editor] is a free-software (LGPL) SLD Editor developed with GeoTools+ Java+ Swing.

External links

* [http://www.opengeospatial.org/standards/sld OpenGIS Styled Layer Descriptor Implementation Specification]
* [http://www.opengeospatial.org/standards/symbol OpenGIS Symbology Encoding Implementation Specification]


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