Re: [GRASS-user] Elevation profi le from intersecting shapefiles‏

Much progress! Micha Silver wrote: > > Set resolution to 10m. X 10m. with > g.region -s -p res=10 > Hamish_b wrote: > > Multiple displays would need multiple > WIND files but the processing module (eg v.to.rast) wouldn't know which > was the appropriate one to use. Thus computational region

[GRASS-user] r.neighbors, wide filtering

Hi, For my research, I am testing a mesh denoising algorithm on topographic data. It smooths the surfaces much like using r.neighbors method=average or r.neighbors method=median, and, depending on settings, gives similar results to r.neighbors when size <5. The advantage of the algorithm i

[GRASS-user] convert 3D polyline ZM to points

Dear all, Apologies for the beginners question. How can I convert 3D polyline ZM to points? And in next operation add to the atribute table column with elevation??? Thanks in advance. All the best Bohdan Horvath -- View this message in context: http://www.nabble.com/convert-3D-polyline-ZM-to-p

[GRASS-user] Mapping Africa in an equal area projection

Dear friends, I would like to use it to map distribution of some specimen at a resolution of 100 km x 100 km (or even down to 25 km x 25 km). I gathered some information, and ended up with: 1) Sinusoidal 2) Equatorial Lambert Azimuthal Equal Area 3) Albers Equal Area (Conic) 4) Mollweide 5) Cyl

Re: [GRASS-user] shell script problem

hmmm are you starting the script inside grass? probably not... or I'm wrong? Ivan Il giorno gio, 04/12/2008 alle 17.06 +, Mario Giacomello ha scritto: > Dear all, > > Apologies for the total beginner's question, but despite my efforts > and searches through the GRASS mailing list archive

Re: [GRASS-user] shell script problem

Hi Mario, On Thu, 4 Dec 2008 17:46:36 + "Mario Giacomello" <[EMAIL PROTECTED]> wrote: > Thanks for your prompt response. I have got as far as understanding > that I should run scripts inside GRASS.So, the answer is "yes- I have > run the script inside GRASS". try to start the script with: s

Re: [GRASS-user] shell script problem

Thanks for your prompt response. I have got as far as understanding that I should run scripts inside GRASS.So, the answer is "yes- I have run the script inside GRASS". Marco On Thu, Dec 4, 2008 at 5:54 PM, ivan marchesini <[EMAIL PROTECTED]> wrote: > hmmm > are you starting the script inside gra

[GRASS-user] shell script problem

Dear all, Apologies for the total beginner's question, but despite my efforts and searches through the GRASS mailing list archives I have not been able to solve my problem. I am trying to write a simple grass script in order to automated a process, but I have not very far yet. One thing that I wou

Re: [GRASS-user] vectors: how to find the gravitation centre of point data ?

On 04/12/08 11:02, [EMAIL PROTECTED] wrote: Hi list, is there an easy way to derive the centre of a cloud of points ? I am aware that the set of vector points ("cloud of points") could be used to stake out a polygon/boundary and use v.centroid etc etc to derive in turn its' centroid, but I am h

Re: [GRASS-user] Elevation profile from intersecting shapefiles‏

georgew wrote: Thanks Micha, here we go: Micha Silver wrote: How many shapefiles did you have in the GRASSDATA directory? provide the boundaries. Here is the result: r.info contours_rast ++ | Layer: cont

Re: [GRASS-user] flip raster

Barry Eakins wrote: > We've looked into this issue and the problem lies in how GMT v.4.3, > which was used to create ETOPO1, and GDAL read and write netcdf grids. > Both purport to handle netcdf COORDS-compliant grids though there is > clearly a problem with one of these applications (the vertical

Re: [GRASS-user] Raster file from ascii file and flattening Africa .... :)

Dear Moritz, thanks for pointing out r.in.xyz I will get a look at it, to see if it is what I was looking for. Concerning projection, of course I was not looking into flattening Africa with a digger but in "flattening" Africa's projection (I though it was clear from the context). M

Re: Re: [GRASS-user] Elevation profile from inter secting shapefiles‏

Hamish wrote: > A symptom of the computational region being way out of whack compared to > your display region is that you see the result as a series of huge blocks > (computational resolution is too coarse), or in the other direction the > resolution is so fine that takes ages to load. YMMV Not

[GRASS-user] vectors: how to find the gravitation centre of point data ?

Hi list, is there an easy way to derive the centre of a cloud of points ? I am aware that the set of vector points ("cloud of points") could be used to stake out a polygon/boundary and use v.centroid etc etc to derive in turn its' centroid, but I am hoping for an easier solution .. ? This issu

Re: [GRASS-user] Elevation profile from i ntersecting shapefiles‏

On 04/12/08 09:47, Hamish wrote: georgew wrote: Hamish, please forgive my ignorance but I am not sure what you mean. As far as I know g.region is the means to change the resolution, correct, whether through the command line or the GUI. Can you please explain how to access and change the comp

Re: [GRASS-user] Elevation profile from inter secting shapefiles‏

georgew wrote: > Hamish, please forgive my ignorance but I am not sure what you mean. > As far as I know g.region is the means to change the resolution, correct, > whether through the command line or the GUI. Can you please explain how > to access and change the computational region settings. I