Hi,
as far as I know, it is not possible to install grass from inside qgis.
There you can install a plugin, that allows you to use grass from inside
qgis. So you have to install grass seperatly.
Depending on your operating system, you can install grass gis from here:
http://grass.itc.it/download/
Hello,
I am trying to use v.rast.stats in GRASS 6.4, but cannot get it to work with
the vector file I am using. Vector data I am using is administrative
boundaries (provinces of Vietnam) with the raster being forest cover data at
500m x 500m pixel size.
Interestingly, it works fine when I us
Even though the coordinates are identical, I had to snap the lines via
v.clean with a very small thresh.
By the way, the common node of the two of the three was generated by
breaking on the node of the other. Maybe some rounding issues?
(This is something I tried before, but unfortunately with ty
Hi
> >
> > In a first step, a polygon ("A") is created using v.patch from an
> outline and a centroid. This works fine.
v.patch: "A-outline" + "A-centroid" => "A-polygon" (-a Option)
> >
> > In a second step, the newly created polygon is added to a larger set of
> polygons ("SET") using v.patch
dorothee spindelndreher wrote:
> You are right, I havent recognized the wrong shaddow at the
> southernmost building you have a good eye. I have
> realized that the shaddow at the edges seems to be deplaced
> more than in the middle of the area. But I hoped to change
> that by using a buffer ar
Tim wrote:
> I am trying to use v.rast.stats in GRASS 6.4, but cannot get it to
> work with the vector file I am using. Vector data I am using is
> administrative boundaries (provinces of Vietnam) with the raster
> being forest cover data at 500m x 500m pixel size.
>
> Interestingly, it works f
Hi,
I added a new symbol in SVN called extra/ping.
example:
http://grass.osgeo.org/grass-wiki/images/Symb-ping.png
another example showing with new d.vect dynamic rotation and size
from DB columns:
http://bambi.otago.ac.nz/hamish/grass/screenshots/ping_test.png
commands to make that:
#spear
Hi,
I'm having problems running Grass 6.4 rc3 on Ubuntu 9.04
When trying to open an existing grass database i see the following error.
*** glibc detected *** g.proj: double free or corruption (fasttop):
0x09b8fee0 ***
=== Backtrace: =
/lib/tls/i686/cmov/libc.so.6[0xb78b7604]
/lib/tls/i
Dear GRASS user,
maybe you can help me in understanding the stream network map provided by
r.watshed analysis tool. Am i right in thinking that each segment given by an
odd integer drains into a segment with a lower identifier?
Many thanks,
Christian.
Christian Schwartze wrote:
Dear GRASS user,
maybe you can help me in understanding the stream network map provided
by r.watshed analysis tool. Am i right in thinking that each segment
given by an odd integer drains into a segment with a lower identifier?
Yes. If a stream segment drains into
Hello, I just converted a vector map from boundaries to lines, and
then tried to convert it to a raster, but unsuccessfully.
here are my outputs:
v.type_wrapper.sh input=soi...@workshop output=soilmu_lin
'type=boundary to line' --overwrite
-- Vector map already exists and will be overwritten
Bu
Appears to be that when i try to install grass from a .deb package it has a
lot of dependencies, and ok i downloaded them but those decencies have more
downloading have more and is like never ends.
Is there a way to install it with all the dependencies together?
since i used apt-get with this res
Hello Juan Carlos,
yes, all packages have to be installed.
Im using OpenSuse and Im not a Debian expert. Maybe an Debian-user can
give you a hint how to install all these packages.
juan carlos millord schrieb:
> Appears to be that when i try to install grass from a .deb package it
> has a lot of
Dears,
After some tests, I managed to convert the lines to a raster. I had to
create a new polygon layer from the original raster and convert this
polygon to lines IN ARCGIS, then import the new shapefile. This tells
me that:
There is something wrong with r.to.vect, as it appears to me that
there
Carlos wrote:
> Hello, I just converted a vector map
> from boundaries to lines, and
> then tried to convert it to a raster, but unsuccessfully.
boundaries typically do not have cat numbers assigned. only features
with cat numbers will be considered by v.to.rast. Use v.category to
add cat numbers
Yes, using v.category after v.types works. It would be nice if
category were added automatically, though.
cheers
Carlos
On Mon, Aug 24, 2009 at 14:50, Hamish wrote:
> Carlos wrote:
>> Hello, I just converted a vector map
>> from boundaries to lines, and
>> then tried to convert it to a raste
Since I'm already asking a lot today, why not another one?
In SAGA, there is a module that calculates 'Specific points of a
surface', among the results there is one called "mark highest
neighbour". Given a distance-to-features raster, it will give
something like the 'medial axes' of features. Any
On Mon, Aug 24, 2009 at 4:28 PM, Leonardo Hardtke wrote:
>
> Hi,
> I'm having problems running Grass 6.4 rc3 on Ubuntu 9.04
> When trying to open an existing grass database i see the following error.
>
> *** glibc detected *** g.proj: double free or corruption (fasttop):
> 0x09b8fee0 ***
Please se
Dear GRASS user,
maybe you can help me in understanding the stream network map provided by
r.watshed analysis tool. Am i right in thinking that each segment given by an
odd integer drains into a segment with a lower identifier?
Many thanks,
Christian.
I have used your binary, and I will try this when I get back to the
house in a couple of days.
thanks,
Stephen
On Sun, Aug 23, 2009 at 10:31 PM, William
Kyngesburye wrote:
> That looks right, so I don't know why the system wxpython is loaded.
>
> I wonder, have you installed my GRASS binaries in
Carlos wrote:
> Yes, using v.category after v.types works. It would be nice if
> category were added automatically, though.
please file a wish (enhancement) in the trac system.
it should not be done by default (often it is not what you want
to happen), but v.type could have an optional flag whic
Leonardo wrote:
> I'm having problems running Grass 6.4 rc3 on Ubuntu 9.04
> When trying to open an existing grass database i see the
> following error.
>
> *** glibc detected ***
> g.proj: double free or corruption (fasttop): 0x09b8fee0 ***
>
> === Backtrace: =
> /lib/tls/i686/cmov/
Juan wrote:
> Appears to be that when i try to install grass from a .deb
> package it has a lot of dependencies, and ok i downloaded
> them but those decencies have more downloading have more and
> is like never ends.
it gets there.
> Is there a way to install it with all the dependencies
> tog
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