[GRASS-user] Large vector file processing

[Margherita Di Leo]

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 at assessment>...
Registering primitives...
Killed0000

what does this mean?

:~ > v.build vector_tty
WARNING: Coor file of vector map <vector_tty at assessment> is larger than it
         should be (2403996039 bytes excess)
Building topology for vector map <vector_tty at 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?

Thanks,
-- 
Best regards,

Dr. Margherita DI LEO
Scientific / technical project officer

European Commission - DG JRC
Institute for Environment and Sustainability (IES)
Via Fermi, 2749
I-21027 Ispra (VA) - Italy - TP 261

Tel. +39 0332 78 3600
margherita.di-leo at jrc.ec.europa.eu

Disclaimer: The views expressed are purely those of the writer and may not
in any circumstance be regarded as stating an official position of the
European Commission.
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