EXTERNAL: Re: [vtkusers] LS-Dyna

[Mathieu Malaterre]

Rupert Shute wrote:
> Mathieu,
> We would like to have some form of solution towards the end of Aug. Our
> analysts are finding it impossible to use LS-Post on the large datasets they
> are generating, so there is some sense of urgency to find a viable
> alternative. However, until I get stuck into it I'm not sure whether this is
> a realistic timeline.

What is the typical size of your data ? Element type (tet, hex...) ? 
Order: Linear/quadratic... ?

> So far as the structures we want to visualise, correct me if I am wrong, I
> was kind of assuming I could use vtkUnstructuredGrid's to represent any data
> that may come out of an FEA code.

It should work for you. But -for example- hexagonal prism elements were 
introduced in the toolkit only very recently...
So again what is your element type and order ?

> I'm not sure of the implications of the new API you speak of. Does this add
> new data structures to VTK? Or would it enable manipulation of data in its
> native format? Is there any way I might be able to gain some specific info
> prior to the release?

The most important thing is the order or interpolation of your elements. 
If you want something to be done by august, and you are dealing with 
linear tetras. It shouldn't takes you more than a week(?) to write a 
script to convert your data file to VTK. And then use ParaView to 
visualize it.


HTH
Mathieu

> Cheers
> Rupert
> 
> -----Original Message-----
> From: Mathieu Malaterre [mailto:mathieu.malaterre at kitware.com] 
> Sent: 14 July 2004 14:59
> To: Rupert Shute
> Cc: vtkusers at vtk.org
> Subject: EXTERNAL: Re: [vtkusers] LS-Dyna
> 
> 
> Rupert,
> 
> 	What is your timeline for this project ? Currently the VTK API is
> not 
> ready for dealing with non-linear cells (mesh). What type of structures 
> are you looking to visualize ?
> 
> 	We are about to release a new API in VTK for binding to third
> package 
> library (mid-august worse case). So in your case you could link to ANSYS 
> / LS-Dyna to keep your non-linear mesh.
> 
> How does this sound ?
> 
> Mathieu
> 
> Rupert Shute wrote:
> 
>>I'm about to embark on a project to create an LS-Dyna (FEA code) 
>>reader for VTK. The ultimate aim of which is to use Paraview and VisIt 
>>as post-processor/visualisation tools. Has anyone got any tips for 
>>handling FEA data in VTK, or maybe even done some work on an LS-Dyna 
>>reader? Cheers
>>Rupert
>>--
>>
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