Seb wrote:
> If one were to calculate an average of several rasters, one could simply
> do:
>
> r.mapcalc "ave = (A + B + C) / 3"
>
> But how can we get around the problem of null values in any of the
> rasters, which would propagate it to the result? What is an efficient
> way to calculate bo
Dear GrassGurus,
Sorry I forward but I got an error on my mail-sending yesterday.
Thanks in advance
milton
-- Forwarded message --
From: Milton Cezar Ribeiro
Date: 2009/5/14
Subject: GRASS - QGIS/MSYS issue.
To: grass-user grass-user
Dear all,
Yesterday I installed QGIS fro
Hi Alyre,
In the maritime community, I think GMT )Generic Mapping Tools:
http://gmt.soest.hawai.edu) is more widely used than GRASS, espacially for
publication quality map output.
It has very effective tools for generating & manipulating grids (DEMs) & both
plotting contours directly from the
On Wed, 13 May 2009 22:21:51 -0700 (PDT),
Hamish wrote:
> Seb wrote:
>> If one were to calculate an average of several rasters, one could
>> simply do:
>> r.mapcalc "ave = (A + B + C) / 3"
>> But how can we get around the problem of null values in any of the
>> rasters, which would propagate it
Hello,
I am trying to create a bathymetric map of a small pond. I have imported the
depths and digitized the outline of the shore (0 depth contour). I believe
in GRASS both would by default be in vector format and I need to transform
them into raster and merge both files. I have successfully con
Dear milton and Hamish
mitton wrote:
> db.select point_data fs="," > /home/YOURNORMALUSER/result.csv
Hamish wrote:
> probably because you are trying to write a file to the disk in the
> current directory, and you are in a read-only directory such as "/".
> do "cd ~" or "cd /tmp/" and try again.
Yasuo shimada wrote:
> However, I have the relating question... I am also linux-
> beginner user.
>
> #db.select point_data fs="," > result.csv
> #bash: result.csv: Permission denied
>
> Why does this occur?
probably because you are trying to write a file to the disk in the
current directory, a
Dear all,
Yesterday I installed QGIS from OSGeoW4.
But I don't know why, no when I try start MSYS
to start on grass, msys open a set of windows,
close all them, and crash.
Any help are welcome.
milton
brazil=toronto
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Dear all:
I solved this problem at last !
Well, I found the method of installing grass6.4 on ubuntu 9.04.
http://les-ejk.cz/2009/05/grass-64-rc4-for-ubuntu-904/
I want to say the reward to you. Thank you !
However, I have the relating question... I am also linux- beginner user.
#db.select poi
hello!
Guess my last question was not clear enough...
I´d like to calculate i.evapo.senay and I´m not sure which MODIS albedo values
I shall use. Do you use black or white-sky albedo for this calculation?
Or do I need both, calculated into blue sky albedo before?
hope someone can help! Thanks
On 14/05/09 10:03, Benjamin Ducke wrote:
Hi all,
I am working on a set of GRASS for territorial analysis.
Does anyone here know any GRASS modules/add-ons that do the following:
1. Sort all cells in an input raster map into n categories so
that each category contains (approximately) the same nu
Hi all,
I am working on a set of GRASS for territorial analysis.
Does anyone here know any GRASS modules/add-ons that do the following:
1. Sort all cells in an input raster map into n categories so
that each category contains (approximately) the same number of
cells; with no data range overlap
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