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Agustin Lobo | 1 May 2008 11:17
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Re: Cannot use grass on vfat partition

Glynn,

Unfortunately, this is not the case. Directory
drwxrwxrwx /media/mifat32/test/PERMANENT
is in upper case, with its
DEFAULT_WIND  myname  wind files
all of them with -rwxrwxrwx permissions.

If I start
grass -text
on /media/mifat32
I enter a normal grass session (although g.mapset does not work!)

But if I do
grass -gui
I get the gui with
GIS data directory: /media/mifat32
Project Location: test
Mapset: testmapset

and when  I select Enter GRASS, I get an error:
Warning Invalid Mapset
Warning <0> is not a valid mapset.

Also, if within the grass text session I do:
  g.mapset /media/mifat32/test/testmapset
I get:
ERROR: The mapset does not exist.

even if I do it from within the
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Agustin Lobo | 1 May 2008 18:35
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Re: Cannot use grass on vfat partition

Just found the difference between locations on
the vfat and on the ext3 partition:
mapsets on the vfat partition get
files  MYNAME  WIND as myname and wind.

Just renaming these files makes everything work.

What I do not understand is why grass
writes thes files in lower case, it does not
with LOCATION for example, and even less
why grass has a different behaviour
for different partition formats

Note that in both cases I'm using linux (Ubuntu 8.04)
and grass6.2.3

Thanks

Agus

Agustin Lobo wrote:
> Glynn,
> 
> Unfortunately, this is not the case. Directory
> drwxrwxrwx /media/mifat32/test/PERMANENT
> is in upper case, with its
> DEFAULT_WIND  myname  wind files
> all of them with -rwxrwxrwx permissions.
> 
> If I start
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Glynn Clements | 2 May 2008 03:24

Re: [GRASS-user] Cannot use grass on vfat partition


Agustin Lobo wrote:

> Also, if within the grass text session I do:
>   g.mapset /media/mifat32/test/testmapset
> I get:
> ERROR: The mapset does not exist.

That's correct. The mapset= argument should be the name of a mapset
(e.g. "testmapset"), not a full path.

> Just found the difference between locations on
> the vfat and on the ext3 partition:
> mapsets on the vfat partition get
> files  MYNAME  WIND as myname and wind.

That explains it.

> Just renaming these files makes everything work.
> 
> What I do not understand is why grass
> writes thes files in lower case, it does not
> with LOCATION for example, and even less
> why grass has a different behaviour
> for different partition formats

It isn't GRASS that's doing this, but Linux.

The reason why it only does it to those files and not to PERMANENT and
DEFAULT_WIND is the length of the name.
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Agustin Lobo | 2 May 2008 11:21
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Re: Cannot use grass on vfat partition

Thanks, solved by adding shortname=win95 to the mount options in /etc/fstab

Should a bug report be filled? by me?
Should I write a note in the wiki?

Agus

Glynn Clements wrote:
> Agustin Lobo wrote:
> 
>> Also, if within the grass text session I do:
>>   g.mapset /media/mifat32/test/testmapset
>> I get:
>> ERROR: The mapset does not exist.
> 
> That's correct. The mapset= argument should be the name of a mapset
> (e.g. "testmapset"), not a full path.
> 
>> Just found the difference between locations on
>> the vfat and on the ext3 partition:
>> mapsets on the vfat partition get
>> files  MYNAME  WIND as myname and wind.
> 
> That explains it.
> 
>> Just renaming these files makes everything work.
>>
>> What I do not understand is why grass
>> writes thes files in lower case, it does not
>> with LOCATION for example, and even less
(Continue reading)

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Glynn Clements | 2 May 2008 16:51

Re: Cannot use grass on vfat partition


Agustin Lobo wrote:

> Thanks, solved by adding shortname=win95 to the mount options in /etc/fstab
> 
> Should a bug report be filled? by me?
> Should I write a note in the wiki?

A note in the Wiki would be good, if you can figure out where to put
it.

A bug report is problematic because it isn't clear where the bug lies. 
The handling of PERMANENT is a bug, but won't normally get triggered
in practice. I can't see where the incorrect test for MYNAME or WIND
lies.

--

-- 
Glynn Clements <glynn <at> gclements.plus.com>
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Markus Neteler | 2 May 2008 17:44
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GRASS workshop submissions for FOSS4G2008

Hi,

I just got notified that there aren't yet GRASS workshop submissions
for FOSS4G2008. Please consider to submit a proposal (if you go
there):

http://conference.osgeo.org/index.php/foss4g/2008

Markus

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Nicolas Bergeron | 2 May 2008 23:43
X-Face
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v.rast.stats few blank stats

Hi,

I have a vector points  and a raster (r.rescale kernel [1-100]).  This
raster  is  a  estimation  with   this  vector  points.   When  I  run
v.rast.stats:

-
|g.region rast=kernel
|v.rast.stats vector=points raster=kernel colprefix=UD
-

These  statistics  are  calculated,   both  few  rows  dont't  have  a
statistics?!? Why?

cat|x|y|ID_animal|TZ|UD_n|UD_min|UD_max|UD_range|UD_mean|UD_stddev|UD_varianc|UD_cf_var|UD_sum
[...]
61|-672656.801103|787881.127772|2004017|2004-05-29 17:01:31|1|98|98|0|98|0|0|0|98
62|-672622.67331|787911.422252|2004017|2004-05-30 00:00:47|||||||||
63|-672615.198498|787903.832613|2004017|2004-05-30 07:00:37|1|100|100|0|100|0|0|0|100
64|-672658.382384|787902.976345|2004017|2004-05-30 14:01:06|1|98|98|0|98|0|0|0|98
[...]

Thank you for your help!

Salutations

--
NicBer
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Tomas Lanczos | 4 May 2008 11:34
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llnl visit and grass

I am playing now with visualisation of 3D Grass data exported as vtk 
files in llnl's VisIt (https://wci.llnl.gov/codes/visit/) in Ubuntu 
gutsy. I have quite good experiences with Paraview also, but I miss some 
features what VisIt actually have. Do have somebody experiences with 
this issue?

Many thanks for any ideas and advices

Tomas
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Hamish | 4 May 2008 12:09
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Re: llnl visit and grass

Tomas Lanczos wrote:
> I am playing now with visualisation of 3D Grass data exported as vtk 
> files in llnl's VisIt (https://wci.llnl.gov/codes/visit/) in Ubuntu 
> gutsy. I have quite good experiences with Paraview also, but I miss
> some features what VisIt actually have. Do have somebody experiences
> with this issue?
> 
> Many thanks for any ideas and advices

feel free to expand this page with whatever you learn:
  http://grass.osgeo.org/wiki/Help_with_3D#Visualization_Tools

Hamish

ps- note new mailing list send-to address

pps- I notice in a few place the new version of MediaWiki does not show
third-party screenshots, just a URL link to them in text. How to fix
that?

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Moritz Lennert | 4 May 2008 12:37
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Re: examples of data error handling in GRASS

Bump...

Does the silence mean that noone worries about error handling in GRASS 
or that my question is not clear ? ;-)

Moritz

On 27/04/08 15:51, Moritz Lennert wrote:
> Hello,
> 
> I'm currently giving a series of classes in the framework of a 4-month 
> FOSS-GIS training course and one issue I will be treating is error in 
> GIS applications and they way errors are taken into account in data 
> treatment and analysis. AFAIK, GRASS does not include any specific error 
> handling, e.g. in the form of probabilistic results, error margins, 
> check for digitalisation scale for vector overlays, etc. Please correct 
> me if I'm wrong.
> 
> However, I would be interested in how people deal with this in their use 
> of GRASS. Any experience would be welcome. I will compile the responses 
> and create a wiki entry.
> 
> Moritz
> _______________________________________________
> grass-user mailing list
> grass-user <at> lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user

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