Web Feature Service Support (WFS)

[ingalls]

Context

Add basic preliminary support for portions of the WFS 2.0.0 spec as defined here: http://www.opengeospatial.org/standards/wfs

• Initial goal is to allow QGIS to download and interact with features stored in hecate.
• Future goal is to support all or part of the WFS-T (Transactional) model to allow QGIS to natively support editing Hecate Datastores.

Progress

• [ ] Add support for GetCapabilities
  • [x] Define Data & Extent
  • [ ] Remove all unsupported operations, ensuring all capabilities claimed are supported
  • [ ] Read and expose metadata about data provider
  • [ ] Edit metadata via admin web ui
• [x] Add support for DescribeFeatureType
  • [x] HecatePointData
  • [x] HecateMultiPointData
  • [x] HecateLineStringData
  • [x] HecateMultiLineStringData
  • [x] HecatePolygonData
  • [x] HecateMultiPolygonData
• [x] Add support for GetFeature
  • [x] Version output
  • [x] Key output
  • [x] Arbitrary Properties
  • [x] Point Geometry
  • [x] MultiPoint Geometry
  • [x] LineString Geometry
  • [x] MultiLineString Geometry
  • [x] Polygon Geometry
  • [x] MultiPolygon Geometry
• [ ] Compile and Test with OGC WFS Compliance Library: http://cite.opengeospatial.org/teamengine/about/wfs/2.0.0/site/

cc/ @ingalls

[ingalls]

I've done nothing to check actual validity of the service so far but as an MVP

View WFS Layers

Download Point Features Into QGIS Layer

[ingalls]

Expanded to Point, LineString, & Polygon Support

[ingalls]

MultiPolygon geometries are now supported:

[ingalls]

This is being worked on here: https://github.com/Hecate/Hecate/pull/9