Changes between Version 130 and Version 131 of Grass7/NewFeatures

Timestamp:

Dec 28, 2012, 2:09:57 PM (11 years ago)

Author:

neteler

Comment:

+ spatial index GRASS_VECTOR_LOWMEM

Grass7/NewFeatures

@@ -153 +153 @@
  * Large File Support (LFS) added
  * New topology, requires rebuilding topology with G7:v.build (G7:v.build.all) when switching between GRASS 6.x and GRASS 7
-  * New spatial index, and spatial index kept in file: faster queries (>10x for large vectors), less memory for opening an existing vector
+  * New spatial index: faster queries (>10x for large vectors), less memory for opening an existing vector
+  * New option added to use a [http://lists.osgeo.org/pipermail/grass-user/2011-January/059175.html file-based version of the spatial index] which can be activated by setting the new shell environment variable GRASS_VECTOR_LOWMEM (e.g., in bash: 'export GRASS_VECTOR_LOWMEM=1' and deactivated with 'unset GRASS_VECTOR_LOWMEM')
   * New main topology: reduced memory and disk space requirements, generally faster processing
  * Cleaning function 'break polygons' faster, less memory