Dear Sir,<br>I am trying to read the file grids/<a href="http://2dgrid.al">2dgrid.al</a> in dune-grid-howto module and I have a doubt in that respect.<br><br>The file contains the text:<br><br>DIM: 2<br>DIM_OF_WORLD: 2<br>
<br>number of elements: 2<br>number of vertices: 4<br><br>vertex coordinates:<br>0.0 0.0<br>1.0 0.0<br>1.0 1.0<br>0.0 1.0<br><br>element vertices:<br>2 0 1<br>0 2 3<br><br>element boundaries:<br>1 1 0<br>1 1 0<br><br><br>
While I have understood everything else, the thing that perplexes me is the element boundaries section.<br>I can neither make head or tail of what it does. I would be thankful for help there.<br>Especially, what does the "1 1 0" string specify ? (the vertices or the coordinates etc....)<br>
<br>Regards<br>Jayesh<br><br><br><br>