[Gmsh] cut high order postprocessing views
Christophe Geuzaine
cgeuzaine at ulg.ac.be
Fri Oct 2 15:40:37 CEST 2009
Marcus Drosson wrote:
> Dear all,
>
> is there any way to use the "adapt visualization grid" without the GUI?
> I have defined a gmsh script, which cuts the solution field at a given
> section and exports the result as a raw text file. The postprocessing
> view is composed of high order polynomials.
> My problem: when I run the script, the cut section contains only a few
> points, corresponding to the initial grid. When I use the GUI to first
> adapt the visualization grid and then run "cut plane" from the GUI, a
> much better representation is obtained. (I am particularly interested in
> the gradient close to the wall. That's why one of the reasons why I need
> to adapt the grid.)
> As I have to do the same operation many times, I really would like to
> use a script.
>
Hello Marcus - Here's an example:
Merge "adaptive_view.pos";
View[0].AdaptVisualizationGrid =1;
Plugin(CutPlane).RecurLevel = 4;
Plugin(CutPlane).TargetError = 0;
Plugin(CutPlane).D = -3;
Plugin(CutPlane).iView = 0;
Plugin(CutPlane).Run;
(Beware that all plugins are not yet ready for high-order maps. Extract,
Evaluate & co will just take components "as is" : they won't perform any
interpolation.)
Cheers,
Christophe
> Thanks in advance
> Marcus
>
--
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine