[visit-users] How to plot schlieren graph for "*.vtk" results?

Qian Wan qwan at usc.edu
Wed Jul 1 13:30:55 EDT 2015


Hi Cyrus,

Thank you. It works!

All the best,
Wan

On Tue, Jun 30, 2015 at 12:08 PM, Harrison, Cyrus D. <harrison37 at llnl.gov>
wrote:

> Hi Wan,
>
> In the past I have simply plotted the gradient of the density of my
> dataset, using VisIt’s expression language.
>
> To try this open the expressions window (Controls Menu->Expressions)
>
> Create a new scalar expression
>
> name: my_schlieren
>
> definition:
>
> magnitude(gradient(density))
>
> where “density” is the name of density variable from your vtk dataset.
>
> You should then be able to create a pseudocolor plot of “ my_schlieren"
>
> Hope this helps,
> -Cyrus
>
> On Jun 29, 2015, at 4:08 PM, Qian Wan <qwan at usc.edu> wrote:
>
> > Good afternoon,
> >
> > How can I plot 2D schlieren distribution in the computational domain for
> vtk results files in VisIt?
> >
> > All the best,
> > Wan
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