[CIG-SHORT] stress in vtk files

[Thorsten Becker]

On Sat, 2008-05-17 at 11:39 -0700, Brad Aagaard wrote:
> Tabrez Ali wrote:
> > PyLith Users/Developers
> > 
> > The vtk files containing stress results have six values for each 
> > component but which is what?
> 
> Good question. I think this is missing from the manual.
> The order for the stress and strain components is
> 
> 1-D: sigma_xx
> 
> 2-D: sigma_xx, sigma_yy, sigma_xy
> 
> 3-D: sigma_xx, sigma_yy, sigma_zz, sigma_xy, sigma_yz, sigma_xz
> 
> Brad
> 
> 
> > Also is there a supereasy way "within" Paraview to obtain annual 
> > velocities from displacement data available each year, say from 0-500 yrs.
> 

I'm not sure if I understand the question, but Paraview has a calculator
tool (Filter->Alphabetical->Calculator, in 3.2.1, for example) that can
operate on all model scalars (including coordinates) and vectors (such
as velocities). 



> I don't think there is an easy way. ParaView has a scripting interface 
> but I have no experience using it. This is one reason why we want to add 
> HDF5 output. It is very easy to write simple Matlab or Python scripts to 
> process data in HDF5 files.
> 
> Brad
> 
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