= PostGIS geometry editing =

'''Goal''': Implement [http://www.postgis.org PostGIS] geometry editing functionality in GRASS GIS (wxGUI digitizer and {{{v.edit}}} module)

See also [wiki:Grass7/VectorLib/OGRInterface OGR Interface] and [wiki:wxGUIDevelopment#Vectordigitizer wxGUI vector digitizer] roadmap.

== Tasks ==

 1. ~~Attribute table (write) access for OGR-linked vectors (direct or linked by {{{v.external}}})~~ (implemented in r47225)
 1. Improve OGR interface write access (in progress) - see [wiki:Grass7/VectorLib/OGRInterface OGR Interface]
 1. Implement PostGIS driver on the top of OGR driver to allow fully-featured editing (including topology)
 1. Add more...

== Topology comparison ==

Topological elements in GRASS (see [http://grass.osgeo.org/programming7/vectorlib.html#vlibTopoManagement API manual]):

 * Nodes
 * Lines 
 * Areas
 * Isles

Topological elements in PostGIS (see [http://trac.osgeo.org/postgis/wiki/UsersWikiTopologicalPrimitives PostGIS's wiki]):

 * Nodes
 * Edges
 * Faces

== Roadmap ==

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

== Pool ==
 
 * [source:sandbox/martinl/v.topo.pg.out v.topo.pg.out] - converts GRASS topology to PostGIS