Hi,
I'm starting to use v.buffer to create circles around points on
Lat/Long vector maps.
When entering a value for the distance parameter for v.buffer to
create circles for points on lat/long maps, is the distance entered
the radius of the circle or is it the diameter? or some other
variable?
T
I am having about 700 LiDAR tiles (~4 GB). Did it a couple of hours ago
and all worked well...the DTM looks as I expected!
The problem I had last year when I did it last, there were 1000+, values
for one tile were changed. Never investigated the problem. Simply
changed the region and things worked
Hi Niklas,
Same for me: the PNG driver draws thinner and thinner arrows when you
increase the resolution. If you lower the resolution it's okay though.
If you do need such a high resolution (for a poster?), you might try the
CAIRO driver (g.manual displaydrivers) which behaves quite differently
Markus Neteler wrote:
> Here an increase to 1500 files (use * instead of neteler to aply
> it to all users):
>
> #
> neteler hardnofile 1500
>
> But myself, I got troubles when having registered the maps with r.external:
>
> GRASS 6.4.1svn (patUTM32)
Markus, still does not work.
I saw some differences compared to the old script. To understand ... which
is the part that has been changed to fix this?
GRASS 6.4.0 (utm_wgs84):~ > g.extension i.landsat.toar
Fetching from GRASS-Addons SVN (be patient)...
Ai.landsat.toar/landsat_set.c
Ai.
Hello,
I cannot really answer your question, but I have been working with a
combination of your fuzzy modules for GRASS and r.param.scale in order to
accomplish a fuzzified version of Wood's morphometric feature extraction
method.
In doing so, I noticed that the results of "r.param.scale param=f
I have not heard anything back on this, so decided to go to the source code of
r.out.pov. I figured out the answer and wanted to post it, in case it is
useful to anyone else, or someone might want to add it to the help page.
Here is what I figured out.
1) scale, and hftype are independent.
On Tue, Nov 2, 2010 at 5:16 PM, Gabriele N. wrote:
>
> Hi Markus.
> I have installed grass-dev but now there is another problem (there is a
> problem of permissions for the folder creation and does not solve if I
> create the folder before launching g.extension):
>
>> g.extension i.landsat.toar
>
Hi Markus.
I have installed grass-dev but now there is another problem (there is a
problem of permissions for the folder creation and does not solve if I
create the folder before launching g.extension):
> g.extension i.landsat.toar
Fetching from GRASS-Addons SVN (be patient)...
Ai.landsat.t
On Tue, Nov 2, 2010 at 4:41 PM, wrote:
> Hi Markus
>
> Many thanks for your response. In the past versions, the patched raster
> used to have an odd values.
No, this is rather impossible (perhaps you refer to the odd number of pixels
in a moving raster window).
> I use Grass 6.4 from Ubuntu 10.
Hi Markus
Many thanks for your response. In the past versions, the patched raster
used to have an odd values.
I use Grass 6.4 from Ubuntu 10.10 64 bit repo.
Cheers
Sab
> On Tue, Nov 2, 2010 at 2:03 PM, wrote:
>> Dear all
>>
>> Is there a limit on the number of rasters for r.patch?
>
> How f
On Tue, Nov 2, 2010 at 2:03 PM, wrote:
> Dear all
>
> Is there a limit on the number of rasters for r.patch?
How funny, we had the same question at the same time... :)
>From GRASS 6.4+ there is no more limit despite the limit of open files per
process (which depends on the operating system; for
Dear all,
I'm trying to plot arrows, representing length proportional to magnitude in a
printable high resolution map (with d.rast.arrows). Here is what I tried:
#!/bin/sh
export GRASS_WIDTH=1
export GRASS_HEIGHT=1
export GRASS_PNGFILE=testpng.png
export GRASS_PNG_COMPRESSION=0
#ex
Hi,
2010/11/2 Luisa Peña :
> I have produced 2 or 3 python scripts and I realized that, in some of them,
> I get an extra flag in Required tab (Add created map into layer tree") and
> in others scrips I just get the "Close dialog on finish". Why is that?
this option is available when the module h
Greetings
I have produced 2 or 3 python scripts and I realized that, in some of them,
I get an extra flag in Required tab (Add created map into layer tree") and
in others scrips I just get the "Close dialog on finish". Why is that?
Thanks
Luisa
___
grass
Dear all
Is there a limit on the number of rasters for r.patch?
Cheers
Sab
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On Tue, Nov 2, 2010 at 10:31 AM, Kim Besson wrote:
> Hi Markus
> Thanks. I do have a weekly snapshot 6.4.1 but I don't have that yet. is it
> possible to integrate that part in a earlier version of 6.4.1?
The easiest way really is to get an updated snapshot.
> By the way, How can I check which r
Hi Markus
Thanks. I do have a weekly snapshot 6.4.1 but I don't have that yet. is it
possible to integrate that part in a earlier version of 6.4.1?
Thanks
Kim
By the way, How can I check which release am I using and, what changes have
occured since my release?
2010/11/2 Markus Metz
> Kim Besso
Hi
while I modified r.param.scale for my purposes I noticed that some
formulas for curvatures differs from that I know:
for example:
plan curvature: is
(2.0 * (b * d * d + a * e * e - c * d * e) /
pow(e * e + d * d, 1.5));
probably shall be:
( (b * d * d + a * e * e - 2.0 *(c *
Thanks Markus.
By the way, just one last question:
If I have pixel values that I don't want to apply r.mode (for instance 0),
can I transform them to null (using r.mapcalc) and then apply r.mode? Isn't
there any issue regarding null values?
Thanks
On Sat, Oct 30, 2010 at 5:34 PM, Markus Neteler
Kim Besson wrote:
> Greetings
> I'm starting to use Wx Georrectifier (Geometric Correction) and, in a couple
> of messages from a few weeks I saw that some help for Georrectifer was added
> to GRASS but I didn't find anything. could anyone point me out? Im using
> WinGRASS 6.4.0 (stable).
The help
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