[visit-users] Vector plot independet of mesh

Fabian Braennstroem f.braennstroem at gmx.de
Sat Apr 18 02:54:28 EDT 2009


Hi Hank,

the resample operator works nice! Thanks!

Fabian

Hank Childs wrote:
> Hi Fabian,
>
> i run into this use case from time to time too.  Here's my workaround:
> I make a Vector plot and then apply the resample operator.  The 
> resample operator will put the vector field on a uniform mesh.  Then, 
> when the Vector plot starts picking locations to put its glyphs, it is 
> drawing from a distribution that is even in space instead of one that 
> is uneven in space (your original unstructured mesh).
>
> That multiple people are running into this suggests, of course, that a 
> button should be added to the vector plot to make this easy.
>
> Also, note that  the resampled mesh will likely have many less data 
> points, so you will need to adapt the "thinning" by the vector plot. 
>  I typically set the Vector plot to have a "stride" of 1 and then set 
> the resample operator to have resolution ("numX, "numY", "numZ") such 
> that I *want* to see every glyph on the mesh.
>
> Hope this makes sense!!
> -Hank
>
> --- On *Thu, 4/16/09, Fabian Braennstroem /<f.braennstroem at gmx.de>/* 
> wrote:
>
>
>     From: Fabian Braennstroem <f.braennstroem at gmx.de>
>     Subject: [visit-users] Vector plot independet of mesh
>     To: "VisIt software users community" <visit-users at email.ornl.gov>
>     Date: Thursday, April 16, 2009, 11:50 PM
>
>     Hi,
>
>     is there an option in visit to display vector plots independent of
>     the underlying mesh? Most of the time the mesh has quite large
>     expansion with a lot of cells in the wall region. It would be
>     great, if the vector plots could be placed on a uniform
>     distributed 'virtual' mesh!?
>     Would be nice, if this work!
>
>     Regards!
>     Fabian
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