[Gvsig_english] Re: annotation and shape centroids

[Nik Go]

Okay, reading back the thread I started re computing coordinates , I found a
recommendation Agustin: try Sextante centroid command.

I just did and so far they've been working wonderfully.



On Tue, Mar 17, 2009 at 8:53 PM, Nik Go <nikolai.go at gmail.com> wrote:

> From the tip I got from this mailing list, I've been (ab)using  the export
> to>annotation to determine shape feature centroids.
>
> I just found out that though it works in many cases, it doesn't always
> work. For example, I have a shape file with 6,845 records, and the
> annotation shape that was generated was only 5,053. That's a lot of missing
> data there. What happened to 1,792 features?
>
> I'm running 64-bit Ubuntu 8.10, and tested this on gvSIG 1.9a (build 1221 )
> and 1.1.2 (build 1045).
>
> So, what's a reliable way of determining the feature centroids and their
> geographic coordinates?
>
>
>
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