[GRASSLIST:781] slope map

Ramin Safa raminsafa at yahoo.com
Mon Jul 21 21:53:15 EDT 2003


hi
*Regarding slope map(raster),befor v.to.rast my map had a 
  border but after v.to.rast  ..the border is disapeared
and **because of this when i run : r.slop.aspect ....slope
map      
   and aspect map and .. will be wrong, am i right or no?
***if this is true how i save the border and if it is not  

   true how i solve my problem?
****and also if i run v.surf.rst or r.surf contour i have 
   same problem :out of the borderplace(but dont have  
   border) the colors is confused.
actually i think ,in vector map the border is a continuse  
   of end of contours line(related to digitizing)..
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


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