[GRASSLIST:10137] Re: Buffer and Anti Buffer

[RAVI KUMAR]

Hi,
  I tried this, but reconverting to raster, make the lines shift at times.
   
  Is there anything like Fuzzy Tolerance in GRASS (like in Arc-Info)..
   
  Ravi
  

Carlos "Guâno" Grohmann <carlos.grohmann at gmail.com> wrote:
  Ravi, maybe you can convert to raster, then r.thin and then back to vector?

HTH

Carlos "Guano"

On 2/2/06, RAVI KUMAR wrote:
> Hi,
>
> 1. A line can grow into a polygon (area) by BUFFER
>
> This is what we have done for a vector layer that should have contained
> LINES
> as they wanted lines with some buffer to become POLYGONS (Areas)
> They are a Geology layer consisting dolerite dykes.
>
> 2. Now there is an order to make all Dolerite Dykes to line features, from
> POLYGONS..
>
> Do we have to literally draw a median line in all these Dolerite Polygons
> and make them lines..
>
> Or Pray.. is there a solution like ANTI-BUFFER..
>
> We would be happy to send a small vector layer with our problem of
> 1. Layer with buffered dolerite dykes as POLYGONS..
> to any who would like to help us with a solution.
>
> Thanks in anticipation
>
> Ravi
>
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--
+-----------------------------------------------------------+
Carlos Henrique Grohmann - Guano
Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
Linux User #89721 - carlos dot grohmann at gmail dot com
+-----------------------------------------------------------+
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