[vtkusers] Unstructured Grid .vtk format

[David E DeMarle]

See: http://www.vtk.org/Wiki/VTK/VTK_integration_point_support
And VTK/Graphics/Testing/Cxx/TestQuadraturePoints.cxx

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909



On Wed, Feb 29, 2012 at 2:55 PM, Yogesh Kumar <yogeshkumar114 at gmail.com> wrote:
> Hello guys,
>
> My name is Yogesh. I am doing my master thesis at FAU Erlangen. I have a
> question about unstructured grid. We have a solver and I want to make the
> ouput in the .vtk format in order to visualized the result in paraview.
>
> The input of the solver is GiD based mesh file and output is the stress
> value at Gauss points and position of deformed and undeformed coordinates.
> The input files are 2D structure such as square plate or beam. In the
> preprocessor I am defining the number of elements and the mesh type is the
> quad element with nine nodes.
>
> So in the example of square plate let say I have four elements and each
> element have nine nodes and nine Gauss points. Node points are at the
> boundary of the element and Gauss points are inside of each  element. So in
> this example I have total 25 node points and 36 Gauss points (9*4).  The
> stress values are define on Gauss points and deformed and undeformed values
> are define at node points.
>
> So I want to write the node point value and stress point value in vtk
> format. But the problem is that I have 25 nodes values and 36 stress value.
> Because the point data is 25 and I am not able to store all the 36 points
> stress values.
>
> Is there is any way that I can write the 25 point_data for nodes and 36
> point_data for Gauss points?
>
> or is there is any other way to store the values in order to see the result
> file in paraview?
>
> An example file will be very helpful.
>
> thanks in advance ..
>
> -Yogesh
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