• 1. OGC, WMS and WFS
  • 1.1. Terms
  • 1.2. OGC
  • 1.3. WMS
  • 1.4. WFS
    • 1.4.1. What WFS is
    • 1.4.2. GetCapabilities
    • 1.4.3. GetFeature
    • 1.4.4. Unit-Summary
  • 1.5. Summary
  • 1.6. Self Assessment
  • 1.7. Glossary
  • 1.8. Bibliography
  • 1.9. Metadata

1.4.4. Unit-Summary

Web Feature Service is an interface allowing requests for geographical features across the web using platform-independent calls (the result is a GML-file). Geographical features can be thought of as the "source code" behind the map and can be edited or spatially analyzed. (Wikipedia)

WFS defines the following operations:

• GetCapabilities (mandatory)
• DescribeFeatureType (mandatory)
• GetGmlObject (optional)
• GetFeature (mandatory)
• Transaction (optional)
• LockFeature (optional)

Each operation returns a GML file as result. The GetFeature request is the operation that is mainly used. You can implement the features that you get from this request in an arbitrary application.

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Update: 26.1.2012 (eLML) - Contact - Print (PDF) - © CartouCHe 2004-2007 (Creative Commons) - layout based on YAML