<font face="Vorgabe Sans Serif,Verdana,Arial,Helvetica,Sans-Serif" size="2"><font face="Vorgabe Sans Serif,Verdana,Arial,Helvetica,Sans-Serif" size="2"><font face="Vorgabe Sans Serif,Verdana,Arial,Helvetica,Sans-Serif" size="2">Dear all,<br><br>I moved this question from the dune mailing list to the dune-pdelab mailing list.<br><br>Here is the problem:<br>I
computed stresses at the Gauss points resulting from the deformation
gradients in my local operator. Now I wonder, how I can visualize these
stresses via vtkwriter directly from the local operator, which is on
element basis, without a second calculation of the variable in the
driver *_Q2.hh or somewhere else? Or is there a way to assign these
stress values to a vector container and visualize it in the driver
*_Q2.hh?<br><br>Maybe it is possible to extrapolate these values to the
nodes within the operator and assign the values to a vector container,
which in turn can be visualized by the vtkwriter?<br><br>Is this there a solution for this problem?<br><br>Thank you in advance,<br>Christian Simon</font></font><div></div></font>