[GRASSLIST:762] v.area2lines

[Ramin Safa]

hi,Moritz
thanks for your usefull email.
*I did these:
v.area2line
v.transform
v.digit........which one is true ?'
               " Label lines "or "Label contour"
   because i need area between contours.
**and how can i check this data after input.
i input the data(labels) for contours(lines)but the massage
is : no labeled.how?
***and also some time because of high slope the contour
line is cutting together ,i dont know how can input the
lebels(elevation of contours)?
****and also for prepairing slop map ,average of slop in
diffrent class and related diagramswhich command is better
:r.slop.aspect  ... or v.surf.rst....?
 
Regards
Ramin




--- Moritz Lennert <mlennert at club.worldonline.be> wrote:
> Ramin Safa said:
> > hi Moritz
> > thanks ,i did v.transfom.
> 
> And did it work correctly ? Have you checked with
> d.what.vect to see the
> resulting attribute values ?
> 
> > but now please go to problem
> no:737<grasslist>r.slop.aspect
> 
> I've seen your mail, but can't answer your question
> without more
> information about your data. On what file did you run
> r.slope.aspect ?
> 
> > the answers is not real and not correct.
> 
> Then probably the data is not correct.
> 
> > r. report also is no correct.
> 
> idem
> 
> > i dont know why.
> 
> One reason might be that your contours were actually
> digitized as areas,
> not as lines. You might want to try by transforming all
> the areas to lines
> (you could use v.area2line). After the transformation you
> would have to go
> into v.digit and lable the lines, but seen that you don't
> have too many of
> them, this shouldn't be too much work. Then you could use
> v.surf.rst or
> something like that.
> 
> Moritz


=====

Ramin Safamanesh 
Department of  Environment Science , UPM
Email :  rsafamanesh at hotmail.com Tel  :  0060122399448  


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