Styled Layer Descriptor
Styled Layer Descriptor ( SLD ) is an XML schema that was defined by the Open Geospatial Consortium (OGC) to define the appearance of map layers. The appearance of vector and raster data can be described with the SLD display description language . A typical application of an SLD definition is to inform a Web Map Service (WMS) how a special map level is to be displayed. The display can thus be saved independently of the geometry, but not of the geometry type (point, line, polygon, etc.).
In August 2007, the SLD specification was divided into two new specifications: Symbology Encoding (short: SE ) and Styled Layer Descriptor (short: SLD ).
The Styled Layer Descriptor Specification now only describes the protocol to inform a WMS which display rules should be used for a map layer. The actual description rules are now defined in a separate Symbology Encoding Specification.
Editors
- AtlasStyler SLD Editor is a free (LGPL) SLD editor based on GeoTools , Java and Swing . From version 1.7 vector and raster are supported. Data sources can be Shapefile, PostGIS, WFS and GeoTiff / ArcASCII files.