Stefan,
as I was really needing the Thiessen, I did something to solve the problem.
In the class DTriangulationForJTS.java I changed the 2 lines in the
constructor. Instead of
Thus, when the class will use the bbox it is larger the before. However, I
think that we have to correct just passing the bbox of background layer, which
can be choosed by the user. I guess it is easy to solve.
Let's go ahead,
Cristiano
_______________________________________
Cristiano das Neves Almeida
Prof. Adjunto - Universidade Federal da Paraíba
www.lrh.ct.ufpb.br/almeida
_______________________________________
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----- Original Message ----
From: Stefan Steiniger <[EMAIL PROTECTED]>
To: OpenJump develop and use <jump-pilot-devel@lists.sourceforge.net>
Sent: Wednesday, 28 May, 2008 10:42:15 PM
Subject: Re: [JPP-Devel] A possible bug in the Thiessen polygon
ok...
I updated two classes:
core/trunk/src/org/openjump/core/graph/delauneySimplexInsert/DTriangulationForJTS.java
core/trunk/src/org/openjump/core/ui/plugin/tools/CreateThiessenPolygonsPlugIn.java
the plugin needed to be changed as well, to receive the new input
stefan
Cristiano Almeida wrote:
> Stefan,
>
> I downloaded the classes of the Delanay, but when I run the OJ the
> result was the same. I can wait until next version of OJ.
>
> Thanks Stefan,
>
> Cristiano
>
> */Stefan Steiniger <[EMAIL PROTECTED]>/* wrote:
>
> Hei Christiano,
>
> I did a fast 'hack' to improve the tool. I think the next nightly build
> should have this improvement - or you can work directly with the svn
> version. As I have no time as well this week I will improve the dialog
> stuff earliest next week. (I need to decide tonight if I write a
> coneference abstract until friday as well)
>
> can you check if it works now for you?
>
> stefan
>
> Cristiano Almeida wrote:
> > 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
> > To: OpenJump develop and use
> > 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
> > > _______________________________________
> > > Endereço:
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> *Cristiano das Neves Almeida*
> *Prof. Adjunto - Universidade Federal da Paraíba*
> www.lrh.ct.ufpb.br/almeida <http://www.lrh.ct.ufpb.br/almeida>
> _______________________________________
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> Av. Capitão João Freire - 620
> Expedicionários
> CEP: 58.040-060
> João Pessoa - PB - Brasil
> +55 (83) 3216-7684
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