On 24/04/15 09:54, Margherita Di Leo wrote:
Hi,
I'm trying to vectorize a very large file
| Type of Map: raster Number of Categories: 255
|
| Data Type: CELL
|
| Rows: 88537
|
| Columns: 54410
|
| Total Cells: 4817298170
|
| Projection: Lambert Azimuthal Equal Area
|
| N: 4239550 S: 2026125 Res: 25
|
| E: 4284650 W: 2924400 Res: 25
|
| Range of data: min = 11 max = 255
using GRASS 7.1.svn (r65027)
:~ > r.to.vect input=raster_tty output=vector_tty type=area
Extracting areas...
100%
Writing areas...
100%
Building topology for vector map <vector_tty@assessment>...
Registering primitives...
Killed0000
what does this mean?
:~ > v.build vector_tty
WARNING: Coor file of vector map <vector_tty@assessment> is larger than it
should be (2403996039 bytes excess)
Building topology for vector map <vector_tty@assessment>...
Registering primitives...
Killed0000
Question about "larger that it should be": What is this limitation? I
guess is related to the specs of my laptop?
This just means that topology has not been built correctly, which is
probably due to some memory issues.
See also https://trac.osgeo.org/grass/ticket/2045.
One option mentioned in this report is to set GRASS_VECTOR_LOWMEM before
running r.to.vect in order to limit memory usage.
Moritz
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