Table of Contents
Vector library in GRASS 7 ¶
Vector Library from Programmer's Manual
See also Radim Blažek's TODO.
See also GRASS 7 ideas collection (to be merged into trac)
File-based spatial index ¶
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 data provider ¶
GRASS-OGR data provider allows to read and write any vector data format supported by OGR library.
For more information see OGR data provider page.
PostGIS data provider ¶
PostGIS data can be accessed using GRASS-OGR data provider or by native GRASS-PostGIS data provider. See also page relared to editing PostGIS data in GRASS.
Vector Category Index ¶
Use a search tree to keep the category index always sorted and for fast insertion/deletion. This change would considerably improve the scalability when editing large vectors or adding or removing features while maintaining topology. Needs testing if a search tree is considerably faster than e.g. insertion sort.
TODO
3D vector data support ¶
TODO
See also: