On Fri, 24 Oct 2008, Corrado wrote:
Dear friends,
a few questions on some things I do not understand well about datum:
1) what is a datum tranformation parameter?
An extra calculation is needed when re-projecting maps and data between
two different co-ordinate systems (in addition to the re
Hello Users group
Have two vector-maps with areas map-A and map-B
Is there a grass-module to calculate the total surface (m2 or ha by
category)
of the areas of the map-B witch are inside the area(s) of the map-A.
Thanks
Joop Goedbloed
___
grass-us
Hi,
Are the following calls doing the same in terms of which cells get
assigned the null value?
$ r.mapcalc "new_raster = if(raster == 0 || raster == 253, null(), raster)"
$ r.null map=raster setnull=0,253
Thanks,
--
Seb
___
grass-user mailing list
Dear All,
I imported a shapefile on GRASS, which have one collumn with the ELEVATION.
How can I generate a Digital Terrain Model using this vector map, and using
ELEVATION fields as attribute?
Best wishes,
miltinho astronauta
brazil
___
grass-user maili
On Monday 27 October 2008, Milton Cezar Ribeiro wrote:
> Dear All,
> I imported a shapefile on GRASS, which have one collumn with the ELEVATION.
> How can I generate a Digital Terrain Model using this vector map, and using
> ELEVATION fields as attribute?
>
> Best wishes,
>
> miltinho astronauta
>
On Mon, Oct 27, 2008 at 9:50 AM, Joop Goedbloed <[EMAIL PROTECTED]> wrote:
> Hello Users group
>
> Have two vector-maps with areas map-A and map-B
>
> Is there a grass-module to calculate the total surface (m2 or ha by
> category)
> of the areas of the map-B witch are inside the area(s) of the map-
>
> Hello Users group
>
> Have two vector-maps with areas map-A and map-B
>
> Is there a grass-module to calculate the total surface (m2 or ha by
> category)
> of the areas of the map-B witch are inside the area(s) of the map-A.
>
> Thanks
>
> Joop Goedbloed
>
Joop,
Combine the two maps using
Markus,
I made the mapset using the QGIS plugin Grass /New mapset.
I'm not sure if I made something wrong or it was a problem of
the plugin(I'll clarify this), but the fact is that I ended up with
this (wrong) region:
~$ g.region -p
GRASS_INFO_ERROR(9537,1): region for current mapset is invalid
Agus,
On Mon, Oct 27, 2008 at 10:17 PM, Agustin Lobo <[EMAIL PROTECTED]> wrote:
> Markus,
>
> I made the mapset using the QGIS plugin Grass /New mapset.
> I'm not sure if I made something wrong or it was a problem of
> the plugin(I'll clarify this), but the fact is that I ended up with
> this (wr
My apologies for BUMPing :-)
On Sun, 2008-10-12 at 00:20 +0200, Nikos Alexandris wrote:
> I wanted to check/verify some i.pca results so I calculated 2 principal
> components using r.covar, m.eigensystem and r.mapcalc. The results are
> not the same with i.pca's output.
>
> (Maybe this post http:
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There will be organized sessions on "Free and Open Source Software",
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