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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi,<br>
<br>
this does shed light on the problem, thanks!<br>
However, I think I'm missing the last bit: I get an error by calling<br>
<br>
indexSet.template subIndex <1> ( * intersectionIter , 0 , 2 );<br>
indexSet.template subIndex <1> ( * intersectionIter , 1, 2 );<br>
<br>
<div>The compiler tells me that it can't accept Intersection as first argument. But from the documentation I read that a codim-1 entity is needed ....<br>
Just to recap: I'm interested in the labels of two vertices (so I'm expecting either 0, or 1, or 2), which have codimension 2. Where am I wrong?<br>
<br>
Cheers,<br>
<div style="font-family:Tahoma; font-size:13px">Andrea<br>
__________________________________________________________<br>
<br>
Andrea Sacconi<br>
PhD student, Applied Mathematics<br>
AMMP Section, Department of Mathematics, Imperial College London,<br>
London SW7 2AZ, UK<br>
a.sacconi11@imperial.ac.uk<br>
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<div style="direction: ltr;" id="divRpF234714"><font color="#000000" face="Tahoma" size="2"><b>From:</b> Dedner, Andreas [A.S.Dedner@warwick.ac.uk]<br>
<b>Sent:</b> 03 May 2013 22:30<br>
<b>To:</b> Sacconi, Andrea; dune@dune-project.org<br>
<b>Subject:</b> RE: Intersection iterator and global labels of vertices<br>
</font><br>
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<div>
<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Its called
<br>
indexInInside<br>
on the intersection iterator.<br>
The subIndex is on the index set (get that from the gridpart).<br>
So <br>
1) you get the number of the edge from the intersection iterator<br>
2) you get the indexSet from the gridpart<br>
3) you use the subindex method on the indexset to obtain the index of the two vertices
<br>
of that edge.<br>
Best<br>
Andreas<br>
<br>
<div style="font-family:Times New Roman; color:#000000; font-size:16px">
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<div id="divRpF302642" style="direction:ltr"><font color="#000000" face="Tahoma" size="2"><b>From:</b> Sacconi, Andrea [a.sacconi11@imperial.ac.uk]<br>
<b>Sent:</b> 03 May 2013 22:21<br>
<b>To:</b> Dedner, Andreas; dune@dune-project.org<br>
<b>Subject:</b> RE: Intersection iterator and global labels of vertices<br>
</font><br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hi Andreas,<br>
<br>
thanks for your answer.<br>
<div>Sorry but I'm a bit perplexed about the method "numberInSelf()" ... I tried to call it, but I get an error from the compiler, saying that there is no such method.<br>
To which class does it belong? I didn't find it in the documentation.<br>
<br>
The subIndex method is from IntersectionIterator? Or from elsewhere?<br>
<div style="font-family:Tahoma; font-size:13px"><br>
Cheers,<br>
Andrea<br>
__________________________________________________________<br>
<br>
Andrea Sacconi<br>
PhD student, Applied Mathematics<br>
AMMP Section, Department of Mathematics, Imperial College London,<br>
London SW7 2AZ, UK<br>
a.sacconi11@imperial.ac.uk<br>
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<div id="divRpF154375" style="direction:ltr"><font color="#000000" face="Tahoma" size="2"><b>From:</b> Dedner, Andreas [A.S.Dedner@warwick.ac.uk]<br>
<b>Sent:</b> 03 May 2013 17:26<br>
<b>To:</b> Sacconi, Andrea; dune@dune-project.org<br>
<b>Subject:</b> RE: Intersection iterator and global labels of vertices<br>
</font><br>
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<div></div>
<div>
<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hi.<br>
Definitely a dune question:<br>
<br>
Probably the easiest way is to use the codim 1 subentity which (in the case of alberta) corresponds to the intersection, i.e., e=intersection.numberInSelf().<br>
Then you can get the index of your corners for that edge by using the subIndex method.<br>
Best<br>
Andreas<br>
<br>
<br>
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<div id="divRpF233123" style="direction:ltr"><font color="#000000" face="Tahoma" size="2"><b>From:</b> dune-bounces+a.s.dedner=warwick.ac.uk@dune-project.org [dune-bounces+a.s.dedner=warwick.ac.uk@dune-project.org] on behalf of Sacconi, Andrea [a.sacconi11@imperial.ac.uk]<br>
<b>Sent:</b> 03 May 2013 17:01<br>
<b>To:</b> dune@dune-project.org<br>
<b>Subject:</b> [Dune] Intersection iterator and global labels of vertices<br>
</font><br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hi everyone,<br>
<br>
I have a quick question about the Intersection Iterator. Before starting, I'm using AlbertGrid.<br>
<br>
Suppose you have a triangle ABC, and you need to perform some operations related to its boundary edges, i.e., the three segments AB, AC, BC.<br>
When you call the intersection iterator, you get three iterators, one for each edge. So far, so good.<br>
But what is the correspondence? I mean, iterator -> geometry().corner(0) gives you the local first corner of the codim-1 entity. To which global vertex does it correspond? A, B or C?<br>
<br>
I'm not even sure if this question is related to DUNE in general, or maybe should be addressed to DUNE-FEM.<br>
<div>Thanks for your help!<br>
<br>
Andrea<br>
<div style="font-family:Tahoma; font-size:13px"><br>
__________________________________________________________<br>
<br>
Andrea Sacconi<br>
PhD student, Applied Mathematics<br>
AMMP Section, Department of Mathematics, Imperial College London,<br>
London SW7 2AZ, UK<br>
a.sacconi11@imperial.ac.uk<br>
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