[Paraview] Color bar rescaling for transient datasets

Renato Elias rnelias at gmail.com
Thu May 14 11:00:23 EDT 2009


I wonder know what's the magic behind Ensight. It loads the transient data
range almost instantaneously. We just set a variable to paint the model and
the color bar appears with a reasonable range for the transient data.

Ken, setting the range by the last time step is a bit dangerous isn't it?
For example, in my case, I'm coloring a dam break fluid flow model by the
velocity magnitude. In this problem we stop the simulation after the fluid
rests in a static position. Therefore the last time step velocity should be
almost zero.

Renato.

On Thu, May 14, 2009 at 10:33 AM, Moreland, Kenneth <kmorel at sandia.gov>wrote:

>  This issue has come up quite a bit.  We are trying to think of a way to
> set the range reasonably while avoiding expensive loading and maintaining
> consistent behavior.  One idea we are considering is to set the range based
> on the last time step, which often has a range close to the full range.
>
> -Ken
>
>
> On 5/14/09 7:28 AM, "Chris Kees" <christopher.e.kees at usace.army.mil>
> wrote:
>
> I would be interested in a simple way  to do this too.  It seems like a
> potentially expensive choice since it requires loading every time step, but
> it would be worth having it as a simple option.
>
> On May 14, 2009, at 8:13 AM, Renato Elias wrote:
>
> Ok, I've just found a way using the "Temporal Statistics" filter to get the
> maximum and minimum values. After that we just need to fix the color bar
> range using these values.
>
> Just to keep the question:
>
> Is there any simpler or automatic way to do that?
>
> Cheers
>
> Renato.
>
> On Thu, May 14, 2009 at 10:05 AM, Renato Elias <rnelias at gmail.com> wrote:
>
>
>
> Does anyone know if it's possible to rescale the color bar considering all
> values of a transient dataset? I just need to get the maximum and minimum
> values across all time steps.
>
> thanks for any help.
>
>  Renato.
>
>
>
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>    ****      Kenneth Moreland
>     ***      Sandia National Laboratories
> ***********
> *** *** ***  email: kmorel at sandia.gov
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