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With some success, I've been generalising and cleaning Ordnance Survey OpenData VectorMap District woodland polygon shapefiles to make them fit for mid-scale mapping.

However, the resulting shapefiles contain small 'tails' that I wish to eliminate. I've put black dots next to some of these on the attached picture. The problem is that the 'tails' are actually part of the larger polygons, so I can't get rid of them using (for example) GRASS v.clean rmarea. If anyone can help with this problem I'd be grateful for suggestions.

A sample shapefile (cleaned.shp) is included in this zip archive.

Nick.

enter image description here

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I guess you also already tried the v.clean option rmsa (remove small angles)? –  Micha Sep 25 '12 at 10:46
    
Thanks for the reply Micha. But no, I can't make this work :( –  nhopton Sep 25 '12 at 15:38
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up vote 3 down vote accepted

You could try bufferring the polygons by -15m, dissolve, and buffer by a 15m.

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But of course, many thanks! I should have thought of this myself, adding 10 metre buffers and then removing them was how I generalised the source data in the first place. N. –  nhopton Sep 26 '12 at 7:43
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