Vector library in GRASS 7

​Vector Library from Programmer's Manual

See also Radim Blažek's TODO​.

File-based spatial index

Done in r38385 and r39148

Memory consumption

• 3D points: GRASS 7 needs much less memory to build the topology (about 5% of the memory needed in GRASS 6.x).
• Support for Lowmem mode added

OGR interface

Capability to read OGR layers directly without linking them via v.external and to write OGR layers directly without need to store data in the native vector format and then exporting data using v.out.ogr.

For more information see Direct OGR read and write access.

Direct PostGIS geometry editing

For more information see Direct PostGIS geometry editing.

Redesign support structures

Reduce memory requirements particularly for points and lines. See #542.

TODO

3D vector data support

TODO

See also:

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