[GRASS-user] How to remove surplus centroids sitting right on a boundary line ?

GRASS GRASS user
1

Hi all,

I have a vector layer (source: ESRI shape) consisting of areas and many surplus centroids, which need to be removed.
The surplus centroids are sitting right on the boundary lines of the areas: So each area has one "proper" centroid in its center, but also multiple "fringe" centroids sitting on its boundary line.

Which combo of v.clean tools (or other means) can handle the removal of the unwanted centroids ?

Peter

<peter.loewe@gmx.de>

2

On Fri, Jul 19, 2013 at 1:56 PM, "Peter Löwe" <peter.loewe@gmx.de> wrote:

Hi all,

I have a vector layer (source: ESRI shape) consisting of areas and many surplus centroids, which need to be removed.
The surplus centroids are sitting right on the boundary lines of the areas: So each area has one "proper" centroid in its center, but also multiple "fringe" centroids sitting on its boundary line.

Which combo of v.clean tools (or other means) can handle the removal of the unwanted centroids ?

Hi Peter,

http://grass.osgeo.org/grass64/manuals/v.clean.html

tool=string[,string,...]
...
    rmdac: remove duplicate area centroids ('type' option ignored)

Did you try this and it fails?

Markus