[Ann] WellGEO RegRep 4.15 release

The WellGEO RegRep team at Wellfleet Software is pleased to announce our latest release of WellGEO RegRep 4.15. WellGEO RegRep is an implementation of the OASIS ebXML RegRep 4 standard.

Features Highlight

Here is a brief summary of the new features and improvements to existing features:

  • Publish, Management and Discovery of Styled Layer Descriptor (SLD) Resources - Added support for Publish, Management and Discovery of SLD Documents within WellGEO RegRep server. This feature conforms to the  ebXML RegRep Profile for Styled Layer Descriptor (SLD) Resources draft specification.

    "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." - Wikipedia

    An SLD document plays a similar role for a web mapping service as does a HTML Style sheet for a web page. They both style their base resource (a map, in case of a mapping service) and give it the desired visual appearance and symbology.

    With the explosion of feature and coverage data displayed on top of maps (e.g. google maps) there is a huge number of SLD resources defined. This new feature allows an organization to use an ebXML RegRep as a catalog of SLD resources and make it possible for their users to search for, discover and re-use SLD resources of interest based upon their search criteria. SLD resources may be searched using simple and flexible CQL queries that may combine multiple search criteria using logical operators such as "and", "or" and "not". CQL query support conform to ebXML RegRep Profile for Contextual Query Language (CQL).

    For example, the following query finds all SLD documents with a NamedLayer or UserLayer that displays a FeatureType identified by name "{urn:example}Roads":

    (namedLayer.layerFeatureConstraints.featureTypeConstraint.featureTypeName = "{urn:example}Roads") OR (userLayer.layerFeatureConstraints.featureTypeConstraint.featureTypeName = "{urn:example}Roads")

    The feature also allows cataloging and discovery of SLD documents stored outside the WellGEO RegRep repository.

 

Other Improvements

  • Minor bug fixes

Additional Information

A product data sheet for WellGEO RegRep is available here. Please contact us if you need more information.