[GRASS-user] removal of duplicate points

[Carlos "Guâno" Grohmann]

maybe a script to remove each fifth line of the ascii?

carlos



On Wed, Mar 5, 2008 at 3:27 PM, Nikos Alexandris
<nikos.alexandris at felis.uni-freiburg.de> wrote:
>
>  On Wed, 2008-03-05 at 09:58 -0800, Dylan Beaudette wrote:
>  > Hi,
>
>  Hi Dylan
>
> >
>  > I have some "squares" which are stored as polygons. When converting these to
>  > points (v.to.points) I am left with the 5 points (first and last point are
>  > duplicated) that define the corners of the "square".
>  >
>  > Is there a vector module (v.edit / v.clean) that could remove duplicate
>  > points? I would like to replace the manual operation with v.digit with
>  > something that can be scripted. Note that there are multiple "squares", so a
>  > simple v.out.ascii | head -4 | v.in.ascii  would be a little awkward.
>  >
>  > Ideas?
>
>  Not really a solution but maybe...
>
>  If polygons have first and last points duplicated what happens if they
>  are converted in polylines?
>
>  Duplicate coordinates still there?
>
>  If not it could be an easy method to convert boundaries to lines and
>  continue your task.
>
>
>
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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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