Hi!
I am working with Grass 5.7.0.
To fill some null-cells in a float-raster-heightmap I tried to utilize r.fillnulls. The script produces values far away from the surrounding values.
So I looked into this script and found the command:
v.surf.rst -v ...
My heightmap isn't cell so - it doesn't work. Might be because of high temperatures in my town but I remembered about a tool called r.support in older grass-versions, which generated the cell-headers.
So I searched for this tool in the manuals and there are some dead links to it - it is not there.
Can you give me a hint about how to solve the problem?
Greetings
Martin
On Sun, Aug 08, 2004 at 10:13:13PM +0200, Martin May wrote:
Hi!
I am working with Grass 5.7.0.
To fill some null-cells in a float-raster-heightmap I tried to utilize
r.fillnulls. The script produces values far away from the surrounding
values.
So I looked into this script and found the command:
v.surf.rst -v ...
do you mean
r.to.vect -v
?
My heightmap isn't cell so - it doesn't work. Might be because of high
temperatures in my town but I remembered about a tool called r.support
in older grass-versions, which generated the cell-headers.
Could you post the r.info output of your temperatures map?
Also the r.fillnulls command line you used?
So I searched for this tool in the manuals and there are some dead links
to it - it is not there.
Please indicate the dead links (then we can fix them).
Can you give me a hint about how to solve the problem?
Greetings
Martin
Markus
Hello together, hello Markus!
Thank you Markus - your response brought me to the solution:
r.info says: The raster IS cell.
The problem is in r.fillnulls:
The command
v.surf.rst input=pointfeatures elev=rasterresult segmax=700
takes the ‘cat’-field, I think because it is the primary key in the generated pointfeature-table.
When I take this command:
v.surf.rst input=pointfeatures elev=rasterresult segmax=700 zcol=value
everything works fine.
So perhaps the r.fillnulls-script needs an update - I think my data is not very special.
Greetings
Martin
Am 08/09/2004 09:45 AM schrieb Markus Neteler:
On Sun, Aug 08, 2004 at 10:13:13PM +0200, Martin May wrote:
Hi!
I am working with Grass 5.7.0.
To fill some null-cells in a float-raster-heightmap I tried to utilize
r.fillnulls. The script produces values far away from the surrounding
values.
So I looked into this script and found the command:
v.surf.rst -v ...
do you mean
r.to.vect -v
?
My heightmap isn't cell so - it doesn't work. Might be because of high
temperatures in my town but I remembered about a tool called r.support
in older grass-versions, which generated the cell-headers.
Could you post the r.info output of your temperatures map?
Also the r.fillnulls command line you used?
So I searched for this tool in the manuals and there are some dead links
to it - it is not there.
Please indicate the dead links (then we can fix them).
Can you give me a hint about how to solve the problem?
Greetings
Martin
Markus