[Gmsh] An inquire about drawing iso-value contour map

[Jean-Francois Remacle]

Le 02-sept.-09 à 03:59, Kengo Yoshida a écrit :

> Dear Professors Geuzaine and Remacle
>
> First of all, I would like to say thank you for providing a  
> wonderful software, Gmsh, to public.
>
> I started to use Gmsh last week, and I am now trying to draw iso- 
> value map of deformed solids.
> The deformation is analized by FEM develped by myself and Gmsh is  
> used as a post-processer.
> First, to check the grammer of file format, I draw a iso-value  
> contour with one quadrangle element.
> Please have a look at some results shown in the attached file.
> Node value is given such that 1 for a node and 0 for others.
> The node possessing a value of 1 is changed.
> The symmetric figures were expected to be drawn, but the results  
> were not and have apparent directionality.
> I could not find mistake in the input file, which is also copied in  
> the attached file.
> If you could give any comment, it would help me a lot.
>

Hello,

By default, GMSH represents a quad as 2 triangles, so this is correct  
in this sense. Yet, you
should be able to refine this view, using Options->View[0]- 
 >General:Adapt Visualization Grid

Details on the way we visualize high order elements can be found in

Jean-François Remacle, Nicolas Chevaugeon, Émilie Marchandise,  
Christophe Geuzaine
Efficient visualization of high-order finite elements
International Journal for Numerical Methods in Engineering
Volume 69, Issue 4, Date: 22 January 2007, Pages: 750-771

JFR




> Sicerely,
> Kengo Yoshida
>
> ------------------------
> Kengo Yoshida
> Assistant Pforessor
> Graduate School of Science and Engineering,
> Yamagata University,
> Japan
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----------------
Prof. Jean-Francois Remacle
Universite catholique de Louvain (UCL)
Tel : +32-10-472352 -- Mobile : +32-473-909930