[GRASS-user] Re: grass-user Digest, Vol 22, Issue 5

GRASS GRASS user
1

On Feb 4, 2008, at 10:01 AM, grass-user-request@lists.osgeo.org wrote:

Message: 3
Date: Mon, 4 Feb 2008 06:24:17 -0800 (PST)
From: Reno Bladergroen <Rbladergroen@tele2allin.be>
Subject: [GRASS-user] GRASS starts but nothing visible
To: grass-user@lists.osgeo.org
Message-ID: <15268779.post@talk.nabble.com>
Content-Type: text/plain; charset=us-ascii

Hi,

I am a first time user of grass. I installed grass on a PowerbookG4 Mac OS
10.5 system, which went successful. I also downloaded the tutorial
environment files, made a database folder etc. Now when I start grass I can
chose which environment and mapset to use. When I click one (spearfish
example) several windows are opened but I don't see anything... just blank
windows with buttons.

I'm not exactly sure what you are doing, but here is the sequence for viewing a map in GRASS

1. Start GRASS
2. Select GIS data folder (optional if already selected)
3. Select project location (determined by projection) in the left-hand window (you can create a new one, but don't need to for Spearfish). Just pick the Spearfish60 location in this case.
4. Select mapset (where your maps actually live) in the right-hand window (you can make a new empty one)
5. Press the "Enter GRASS" button
6. In the GIS Manager, add a raster (or vector or other) layer by clicking a button on the toolbar. (Note that there is mouseover help for all buttons)
7. In the raster layer properties panel (in GIS Manager), select a raster map to display in that layer (use the browse button to the left of the entry field).
8. In the Map Display, press the display button (left end of the toolbar).

If you still don't see anything, you may need to set your "region" (i.e., the 'window on the world' that determines what you actually see and work with) to match your map. Use the region setting menu button on the Map Display toolbar (icon is a map with a tiny magnifying glass) and select zoom to selected map.

Please look at the GRASS manual, the startup help (button on startup screen), the GIS Manager help (under help menu), and help for each layer type (button on properties panel).

Michael

Then I uninstalled version 6.3 and installed 6.0 through finkcommander.
Maybe that would suit more to my system (G4). I started GRASS again, chose a
new environment, imported a GeoTIFF file successfully, but same problem
exists!

Please help?? I'm trying to find a working GIS package for weeks now. Also
tried OSSIM, which doesn't work either. Getting kind of desperate...

Thanks,

Reno
--

2

Dear all,

I would like to make a landscape analyzes using r.le.setup module of GRASS. I have tried using GRASS 6.2/6.3 in Mac OS X, GRASS 6.2.2 and GRASS 5.4 (in Ubuntu Gusty) but always failed when trying to enter "FROM" attribute group.
The error message is "Segmentation fault (core dumped)".
Does anybody know how to solve this problem?
Thanks.

Cheers,
Firman Hadi
Center for Remote Sensing - ITB
INDONESIA

3

Firman Hadi wrote:

I would like to make a landscape analyzes using r.le.setup module of
GRASS. I have tried using GRASS 6.2/6.3 in Mac OS X, GRASS 6.2.2 and
GRASS 5.4 (in Ubuntu Gusty) but always failed when trying to enter
"FROM" attribute group.
The error message is "Segmentation fault (core dumped)".
Does anybody know how to solve this problem?

It was due to the program trying to write to a file which hadn't been
opened properly.

fixed in SVN/trunk and release branches:
  http://trac.osgeo.org/grass/changeset/29950

Hamish

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