RE: We can't import more than 49 files

GRASS GRASS user
1

Hi

I have a script that combines a unspecified number of maps using r.combine.
It has an intermediate step that combines the files in groups of 10 and then
executes r.combine, and then combining the groups in groups of 10 again,
running r.combine, etc... until the

It can easily be modified to run r.patch instead of r.combine (I think...).
If someone wants it I can pass it to the group. I uses awk as it main tool.

Luís Franco
----------
Instituto das Comunicações de Portugal
Email- luis.franco@icp.pt

-----Original Message-----
From: Utente Grass [mailto:grass@meteux.ismaa.it]
Sent: Thursday, April 22, 1999 11:18 AM
To: grass@cecer.army.mil
Subject: Re: We can't import more than 49 files

On mer, 21 apr 1999, you wrote:

As far as I know GRASS has not realistic limit for the number of mapsets
that are allowed. I have created directories with hundreds of maps with
no problem. Instead could this be a disk space related error you are

having?

R. Joe

On Wed, 21 Apr 1999, Utente Grass wrote:

> S.Michele 21.IV. 99 Italy
>
> We are only beginers; we created a little program to import

automatically 215

> files ascii in GRASS. It works only for 49 files then GRASS prints a

errore

> message! Why?
>
> Do you know if a mapset can accept only 50 files ? Does the mapset have

a

> dimension limit ?
>
> Help us!!
> Thank you

R. Joe Brandon
---------------------------------------------------------------------
Center for Advanced Spatial Technologies (fax) 501 575-5218
Rm. 12 Ozark Hall 501 575-4277
University of Arkansas rjoe@cast.uark.edu
Fayetteville, AR 72701
Updated! -> http://www.cast.uark.edu/~rjoe

Computers are actually powered by Chaos theory, not electricity...that
is just for the fan. (T. Hesser)
---------------------------------------------------------------------

S.Michele 22.IV.99 Italy

Thank you for your message. The real problem was format errors in ascii
data.
We've resolve them and we 're able to import 215 files.

Now we are trying to patch them all together but r.patch allows only 10
files in
input. It is possible to change the source without create new problems?

Good bye

Valentina & Marco

2

A friend has about 1500 GRASS files that he needs to make geo tiffs of.
Does anyone know of a good way to do this in GRASS? Currently he is
trying to use PCI to convert them, but its scripting language is very poorly set up.

R. Joe Brandon
---------------------------------------------------------------------
Center for Advanced Spatial Technologies (fax) 501 575-5218
Rm. 12 Ozark Hall 501 575-4277
University of Arkansas rjoe@cast.uark.edu
Fayetteville, AR 72701
Updated! -> http://www.cast.uark.edu/~rjoe

Computers are actually powered by Chaos theory, not electricity...that
is just for the fan. (T. Hesser)
---------------------------------------------------------------------

3

R Joe Brandon

I modified a script developed by Jill Schuler to create a true geotif file.
The libtiff and libgeotiffs libraries must be available as the script is
using these libraries to create the geotif by placing geo coordinates tags
in the tiff file. The script works on grass files in the UTM projection,
but could easily be modified to work in other projections (portions of the
tags are hard coded in the script). You can loop throught a list of file
names to create the geotiffs. The syntacs would be rast.to.geo <input
raster file name > <output geotif file name> The scripts appends a tif
extension to the output name.

The scripts requires a good bit of disk space as it creates a uncompressed
tiff as an intermediate step and they can be quite large.

If you think this can help you, let me know.

Anthony Burns
GIS Specialist
NRCS
anthony.burns@ga.nrcs.usda.gov

At 02:20 PM 4/22/99 -0500, you wrote:

A friend has about 1500 GRASS files that he needs to make geo tiffs of.
Does anyone know of a good way to do this in GRASS? Currently he is
trying to use PCI to convert them, but its scripting language is very poorly
set up.

R. Joe Brandon
---------------------------------------------------------------------
Center for Advanced Spatial Technologies (fax) 501 575-5218
Rm. 12 Ozark Hall 501 575-4277
University of Arkansas rjoe@cast.uark.edu
Fayetteville, AR 72701
Updated! -> http://www.cast.uark.edu/~rjoe

Computers are actually powered by Chaos theory, not electricity...that
is just for the fan. (T. Hesser)
---------------------------------------------------------------------

Anthony G Burns
USDA-NRCS
GIS Specialist
Gainesville, Georgia

anthony.burns@ga.nrcs.usda.gov
770-536-6981