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. If you don't want to connect to the WFS why not watch a 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]