<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none"><!-- p { margin-top: 0px; margin-bottom: 0px; }--></style>
</head>
<body dir="ltr" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;">
<p>Dear Duners,<br>
</p>
<p><br>
</p>
<p>I want to use DUNE for solving PDEs (just like the Poisson-Equation or the Diffusion-Equation).<br>
</p>
<p><br>
</p>
<p>This is why I want to store some data (like concentration etc.) directly in the cells of the grid.<br>
</p>
<p><br>
</p>
<p>I even tried using Mappers (as explained in chapter 6 of the How-To) and tried to write something very similar to the elementdata.hh.<br>
</p>
<p>Unfortunately it did not work as expected and I dont't know if it has been the wrong idea in general or only a wrong implementation.<br>
</p>
<p><br>
</p>
<p>Furthermore I texperimented a bit with the DGF, trying to pass the cell data directly in the file, the grid is constructed from.<br>
</p>
<p><br>
</p>
<p>Could anyone just give me a hint or some explanation/link/example how this should be done?<br>
</p>
<p><br>
</p>
<p>Best,<br>
Justus<br>
</p>
</body>
</html>