Hello Stefan, you are right about, the background polygon should be totally covered. We used the Thiessen polygons in hydrology to determine the average rainfall over a watershed (background polygon). I'm sending here the correct result, that we should have in terms of Thiessen polygons. As you can see, the right part of the watershed is included in the Thiessen polygon. It would be urgent, because I'm using it to finish a paper, whose deadline is the end of this month. If you can do it until there, it would be good. Best regards, Cristiano
_______________________________________ Cristiano das Neves Almeida Prof. Adjunto - Universidade Federal da Paraíba www.lrh.ct.ufpb.br/almeida _______________________________________ Endereço: Av. Capitão João Freire - 620 Expedicionários CEP: 58.040-060 João Pessoa - PB - Brasil +55 (83) 3216-7684 _______________________________________ CV Lattes: http://buscatextual.cnpq.br/buscatextual/visualizacv.jsp?id=K4763546J5 ----- Original Message ---- From: Stefan Steiniger <[EMAIL PROTECTED]> To: OpenJump develop and use <jump-pilot-devel@lists.sourceforge.net> Sent: Tuesday, 27 May, 2008 2:10:34 PM Subject: Re: [JPP-Devel] A possible bug in the Thiessen polygon Hei Christiano, I thought first you refer to another bug (to much triangles). But what I see is that you whish to have your background polygon completely covered by the thiessen polygons, right? Well the thing is, that currently the algorithm takes only in account the input points. It does not know about the polygon extends. However, If something like this is provided it could even ease some assummptions I have done. (so.. yes one could change that. But I don't have time to work on this this week. Is that urgent?) stefan Cristiano Almeida schrieb: > Dear All, > > I've been working with the Thiessen Polygons. There are some cases in > which the Thiessen Polygons were wrongly drawn. > > I send here an image with the problem. In the image is shown the > thiessen and a watershed. As you can see, the left part of the watershed > was not included in the thiessen. > > Who could help me? If some needs, I can send the layers to test this > function. > > Best regards, > > Cristiano > > _______________________________________ > *Cristiano das Neves Almeida* > *Prof. Adjunto - Universidade Federal da Paraíba* > www.lrh.ct.ufpb.br/almeida <http://www.lrh.ct.ufpb.br/almeida> > _______________________________________ > Endereço: > Av. Capitão João Freire - 620 > Expedicionários > CEP: 58.040-060 > João Pessoa - PB - Brasil > +55 (83) 3216-7684 > _______________________________________ > CV Lattes: > http://buscatextual.cnpq.br/buscatextual/visualizacv.jsp?id=K4763546J5 > > ------------------------------------------------------------------------ > Sent from Yahoo! Mail > <http://us.rd.yahoo.com/mailuk/taglines/isp/control/*http://us.rd.yahoo.com/evt=52418/*http://uk.docs.yahoo.com/nowyoucan.html>. > > > A Smarter Email. > ------------------------------------------------------------------------ > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > > > ------------------------------------------------------------------------ > > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel __________________________________________________________ Sent from Yahoo! Mail. A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html
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