[GRASS-user] Too many centroids

GRASS GRASS user
1

Hello:

I imported a shape file. Some, but not all, of the features show each point on the boundary as a centroid. See attached image which was plotted showing the centroid as an 'x'.

I would like to remove the incorrect centroids.

I tried using v.clean tool=rmdac but this did not work.

Does anyone have any ideas how I could do this.

Thanks

Dave

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(attachments)

GeolVector.jpg

2

On 15/12/06 04:55, Dave Kent wrote:

Hello:

I imported a shape file. Some, but not all, of the features show each point on the boundary as a centroid. See attached image which was plotted showing the centroid as an 'x'.

This actually looks like you have a lot of overlaps in the boundaries which then create areas. If you zoom in you will see an area for each centroid.

I would like to remove the incorrect centroids.

You might be able to solve this by setting the 'snap' parameter of v.in.ogr.

Moritz