Renato et al
It would be nice if once a dataset has been opened, paraview could
store some permanent information in a database of some kind so that the
first time you visualize the data, the range is wrong, but as you
progress through time steps the range is updated. Next time you run
paraview - it picks up the last known values and uses them.
I've used many *.ini type files in the past with my raw vtk software
(ie not paraview) and it works well, providing you have some unique
identifier for datasets to map to ini files.
for my new data I'm going to be adding meta information into the HDF
files as attributes (or into xml xdmf files). Then I hope to add
information key stuff into the pipeline so that readers can set the
min/max ranges on first load.
$0.02
JB
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 <[email protected]> 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
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 <[email protected]>
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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