Table of Contents
Vector library in GRASS 7
Vector Library from Programmer's Manual
See also GRASS 7 ideas collection (to be merged into trac)
File-based spatial index
- 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
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.
3D vector data support