In the previous tutorial, we published geographic data stored in PostGIS using Geoserver.
Geospatial data has no intrinsic visual component. To see data, it must be styled. Styling specifies color, thickness, and other visible attributes used to render data on the map.
In GeoServer, styling is possible using a markup language called Styled Layer Descriptor (SLD).
SLD is an XML-based markup language and is very powerful, although somewhat complex. This tutorial gives an introduction to the capabilities of SLD and how it works within GeoServer.
With QGIS it is possible to export QGIS styles in the SLD format. The idea is to use this program’s function to style GeoServer’s WMS layers.
This tutorial shows you how to create layers style in QGIS and use it for published data.
In the next tutorial, we will see how to use published data in a webmapping application using OpenLayers and GeoExt.