Vector library in GRASS 7

See:

• source:grass/trunk/doc/vector/TODO​

File-based spatial index

Done in r38385 and r39148

OGR interface

Direct OGR read access

Capability to read OGR layers directly without linking them via v.external. Example:

v.info map=~/shapefiles/@OGR layer=busstopsall
v.extract input=PG:dbname=nc_spm_08@OGR layer=busstopsall where="STREET_1 = 'William Moore Dr.'" output=b1

List of modules which supports direct OGR read access ((*) indicates work in progress):

• v.info
• v.db.connect - r39538
• v.extract (*) - r39621
• v.db.select (*) - r39556
  • TODO: -r

Direct OGR write access

Capability to write OGR layers directly without need to store data in the native vector format and then exporting data using v.out.ogr. E.g.

# input: GRASS data
# output: PostGIS database
v.extract map=obce where="NAZEV = Solany" output="PG:dbname=gisdb" olayer=obce

# input: PostGIS layer, ESRI Shapefile
# output: PostGIS database
v.select ainput="PG:dbname=gisdb"@OGR alayer=zeleznice \
 binput=shps@OGR blayer=obce operator=intersects \
 output="PG:dbname=gisdb"@OGR olayer=obce_zelez

Redesign support structures

Reduce memory requirements particularly for points and lines. See ticket:542.

TODO

3D vector data support

TODO

See also:

• ​http://lists.osgeo.org/pipermail/grass-dev/2009-September/046131.html