PostGIS geometry editing

Goal: Implement ​PostGIS geometry editing functionality in GRASS GIS (wxGUI digitizer and v.edit module)

See also OGR Interface and wxGUI vector digitizer roadmap.

Tasks

1. Attribute table (write) access for OGR-linked vectors (direct or linked by v.external) (implemented in r47225)
2. Improve OGR interface write access (in progress) - see OGR Interface
3. Implement PostGIS driver on the top of OGR driver to allow fully-featured editing (including topology)
4. Add more...

Topology comparison

Topological elements in GRASS (see ​API manual):

• Nodes
• Lines
• Areas
• Isles

Topological elements in PostGIS (see ​PostGIS's wiki):

• Nodes
• Edges
• Faces

Roadmap

1. Read access (geometry)
2. Write access (geometry)

Pool

• v.topo.pg.out​ - converts GRASS topology to PostGIS