Snowflake Web Feature Services

Snowflake Software has set up a CityGML WFS demonstrator using its GO Publisher product to serve the LoD1, LoD2, LoD3 and LoD4 CityGML hosted for the OGC Open Web Services 4 - CAD/GIS/BIM testbed. For more information on Snowflake's CityGML offering visit here, you can also watch Flash Video of GO Publisher WFS serving CityGML to the Land eXplorer City GML client.

The demonstrator WFS allows the following requests in both 1.0 and 1.1 specification

• DescribeFeatureType
• GetCapabilities
• GetFeature

3 web services are hosted at the following URLs:

• http://demo.snowflakesoftware.com:8080/hangar_terrain (Uncompressed)

• http://demo.snowflakesoftware.com:8080/hangar_terrain_gz(GZ Compressed)

• http://demo.snowflakesoftware.com:8080/hangar_terrain_zip (WinZip Compressed)

The WFS server currently supports the following Features:

• Building
• CityObjectGroup
• GenericCityObject
• ReliefFeature
• CityFurniture

The WFS server supports the following Level of Details (LoDs):

• LoD 1, LoD 2, LoD 3, LoD 4

Sample Queries (Uncompressed)

• Bounding Box Query retrieving only the Hangar
• Bounding Box Query retrieving Helipad only
• Typename query retrieving the Helicopter only
• Filter spec query excluding hangar

Sample Queries (WinZip Compressed)

• Bounding Box Query retrieving only the Hangar
• Bounding Box Query retrieving Helipad only
• Typename query retrieving the Helicopter only
• Filter spec query excluding hangar

The WFS can be tested with the following clients:

• Aristoteles (Download and Short Introduction)
• If you don't have a client then take a look at the Flash Video which shows this WFS in action with the Land eXplorer City GML Client]