Visualization information Clause Samples

Visualization information. If geodata needs visualization information in order to be properly interpreted, we also require this information. A large number of GIS software enable an export of the symbology definitions to a special file, however they may be in a proprietary XML structure (like the *.qml in QGIS, *.tab in MapInfo…) or even in a binary format (*.lyr in ArcGIS). The only OGC standard for symbology is the OGC Styled Layer Description XML format (sld files). If the producer cannot provide the Archive with SLD files, these can be recreated from the description which is provided in the documentation in QGIS. Raster files can have a colour map associated with the pixel value. The SLD standard is used for rendering geodata in OGC web services and is therefore an appropriate input for an easier DIP creation. <StyledLayerDescriptor xmlns="▇▇▇▇://▇▇▇.▇▇▇▇▇▇▇.▇▇▇/sld" xmlns:ogc="▇▇▇▇://▇▇▇.▇▇▇▇▇▇▇.▇▇▇/ogc" xmlns:xlink="▇▇▇▇://▇▇▇.▇▇.▇▇▇/1999/xlink" xmlns:xsi="▇▇▇▇://▇▇▇.▇▇.▇▇▇/2001/XMLSchema-instance" version="1.0.0" xsi:schemaLocation="▇▇▇▇://▇▇▇.▇▇▇▇▇▇▇.▇▇▇/sld StyledLayerDescriptor.xsd"> <NamedLayer> <Name>Simple Point</Name> <UserStyle> <Title>SLD ▇▇▇▇ Book: Simple Point</Title> <FeatureTypeStyle> <Rule> <WellKnownName>circle</WellKnownName> <Fill> <CssParameter name="fill">#FF0000</CssParameter> </Fill> </▇▇▇▇> <Size>6</Size>