[Qgis-user] Centroid error

[Pat Brown]

Thanks Bernd,
   I will look at the options you suggested and give them a try.

Paddy


On 2 September 2013 20:39, Bernd Vogelgesang <bernd.vogelgesang at gmx.de>wrote:

> Hi Paddy,
>
> i doubt that you can set a "tolerance" somewhere.
> As a general hint: use functions provided by SEXTANTE-plugin/Processing.
> Most of the time, they perform much better than the standard ftools
> functions, and you don't litter your project with tons of test-files as the
> output is always only temporary.
> For centroids, there is a function in SAGA for this.
>
> Besides that, with 17.000 polygons,it's quite likely that there are some
> topology errors. Maybe thats also a possible reason for malfunctions (just
> guessing).
>
> Greetz
> Bernd
>
>
> Am 01.09.2013, 17:34 Uhr, schrieb Pat Brown <mistyhaven at gmail.com>:
>
>
>  Hi List,
>> I have a layer of around 17000 polygons, for which I want to derive the
>> centroid. Using the Vector/Geometry Tools/Polygon Centroid tool the
>> process
>> progressed to around 45% when this message came up: "Error processing
>> specified tolerance. Please choose larger tolerance". Can anybody tell me
>> why this occurred and how does one set a larger tolerance?
>>
>> Thanks,
>>
>> Paddy
>>
>
>
> --
> Bernd Vogelgesang * Siedlerstrasse 2 * 91083 Baiersdorf * +49-9133-825374
>
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