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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi Andrea.<br>
Have you had a look at the documentation (e.g.<span class="preprocessor"> examplegrid6.dgf</span>)<br>
<a href="http://www.dune-project.org/doc/doxygen/dune-grid-html/group___dune_grid_format_parser.html" target="_blank">http://www.dune-project.org/doc/doxygen/dune-grid-html/group___dune_grid_format_parser.html</a><br>
If you find that unclear then please describe in more detail what is unclear to you<br>
so I can adjust the examples and the documentation.<br>
Best<br>
Andreas<br>
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<div style="direction: ltr;" id="divRpF144098"><font color="#000000" face="Tahoma" size="2"><b>From:</b> Sacconi, Andrea [a.sacconi11@imperial.ac.uk]<br>
<b>Sent:</b> 14 May 2013 13:50<br>
<b>To:</b> Dedner, Andreas; dune@dune-project.org<br>
<b>Subject:</b> RE: Boundary IDs of the faces of a cube within the DGF file<br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hi all,<br>
<br>
thanks Andreas for your answer.<br>
I had a look at the boundarydomain, and the documentation says: "Each line consists of an integer greater than zero and two vectors describing an interval in dimworld space."<br>
So, and I am not sure if it is directly possible; if you have a 3D cuboid tessellated with tetrahedra, and you want all the triangles lying on one of the faces of the cuboid to be identified by the same boundary ID, how do you do that, without enumerating all
the boundary faces of the elements involved?<br>
<br>
Thanks again!<br>
<div>Andrea<br>
<div style="font-family:Tahoma; font-size:13px">__________________________________________________________<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="divRpF328008" 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> 13 May 2013 14:41<br>
<b>To:</b> Sacconi, Andrea; dune@dune-project.org<br>
<b>Subject:</b> RE: Boundary IDs of the faces of a cube within the DGF file<br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hi.<br>
You can use the interval block to define your domain (like in 2d) but that has nothing to do with the<br>
boundary ids. Have a look at the boundarydomain block which should do exactly what you need<br>
(it also uses an "interval" to define a region with the same boundary id).<br>
Best<br>
Andreas<br>
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<div id="divRpF85542" 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> 13 May 2013 14:37<br>
<b>To:</b> dune@dune-project.org<br>
<b>Subject:</b> [Dune] Boundary IDs of the faces of a cube within the DGF file<br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hi everybody,<br>
<br>
I would like to ask you a question about how to prescribe boundary IDs within a DGF file.<br>
I just had a closer look at the DGF format, but I couldn't find how to do what I need.<br>
<br>
Let's say that the domain for your computations is a cube (or a rectangular cuboid, it doesn't matter), and you want to impose different boundary conditions on the six faces.<br>
In order to do that, I would introduce different boundary IDs to be read in the code, to guarantee that the faces are treated accordingly.<br>
<br>
If you want to assign the same ID to all the faces of elements lying on a certain big face of the cube, is it possible to do it directly, without enumerating all those faces?<br>
I mean, in 2D there is the excellent command "Interval".<br>
What happens if I use the keyword "Interval" (in 3D), passing the four segments forming the perimeter of the (big) face?<br>
<br>
Thanks in advance! <br>
<br>
<div>Andrea<br>
<div style="font-family:Tahoma; font-size:13px">__________________________________________________________<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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