[Paraview] [EXTERNAL] displaying simulation time rather than time step

Thu Oct 9 17:58:44 EDT 2014

Using David’s example and a very helpful conversation with Sean I was able to successfully use a Python track in animation and show the actual simulation time.

I’m not an experienced Python user (as you’ll see in the example below), but I got some simple code to work.  Below is an example of the code I ended up with in the Python animation track.  

  def start_cue: pass

  def tick(self):

    # set up the mapping from time step to date/time information

    #

    dateTimes = []

    dateTimes.append( '4/1/2013 15:00' )

    dateTimes.append( '4/1/2013 15:01' )

    dateTimes.append( '4/1/2013 15:02' )

    dateTimes.append( '4/1/2013 15:03' )

    maxIndex = len(dateTimes)

    index = int( self.GetClockTime() )

    if index >= maxIndex :

      index = maxIndex - 1

    textSource = paraview.simple.FindSource("TheText")

    textSource.Text = dateTimes[index]

  def end_cue(self): pass

Thanks!

Phil

From: David E DeMarle [mailto:dave.demarle at kitware.com] 
Sent: Wednesday, October 08, 2014 5:53 PM
To: Phil Amburn
Cc: Sean.Ziegeler at engilitycorp.com; paraview at paraview.org
Subject: Re: [Paraview] [EXTERNAL] displaying simulation time rather than time step

I think that Sean is on the right track and suggest that a Python Animation cue is the way to go.

Attached is a state file to demonstrate. Load the state file in ParaView, open Views->Animation View and double click on the existing Python track to see the script that gets the pipeline time and feeds it into a text source for display. I've left the parts about reading the file and mapping the Animation time into the corresponding simulation time as an exercise to the reader.

Note: many time varying file formats produce the data time for you so this translation is unnecessary and the Annotate Time filter will do what you want it to.

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Wed, Oct 8, 2014 at 7:53 PM, Phil Amburn <phil.amburn at gmail.com> wrote:

Hi Sean,

Can we talk?  I’m not smart enough to understand your suggestion (hate it when that happens).  

If I get something worked out, even a hack, I’ll post the solution back to this list.

Thanks!

Phil

From: ParaView [mailto:paraview-bounces at paraview.org] On Behalf Of Sean.Ziegeler at engilitycorp.com
Sent: Wednesday, October 08, 2014 3:41 PM
To: paraview at paraview.org

Subject: Re: [Paraview] [EXTERNAL] displaying simulation time rather than time step

Hey Phil,
You *might* be able to hack it with a combination of a Programmable Filter and a Python Annotation Filter.  Use the Programmable Filter to add a FieldData value to each time step that is a string with the appropriate date.  Then use the Python Annotation Filter to display the date as an annotation.

The first part is the hard one.  The Programmable Filter could either (1) read the file once to get all the dates, or (2) compute the dates using the starting date, the time step value, and Python's datetime module.

Thanks,
Sean

  _____  

From: ParaView [paraview-bounces at paraview.org] on behalf of Scott, W Alan [wascott at sandia.gov]
Sent: Wednesday, October 08, 2014 5:17 PM
To: Phil Amburn; paraview at paraview.org
Subject: Re: [Paraview] [EXTERNAL] displaying simulation time rather than time step

Phil,

I have no idea how to put out what you are asking for, but it is a really good idea.  If you don’t get an answer, be sure to write up a bug report/ feature request.

Alan

From: ParaView [mailto:paraview-bounces at paraview.org] On Behalf Of Phil Amburn
Sent: Wednesday, October 08, 2014 3:26 PM
To: paraview at paraview.org
Subject: [EXTERNAL] [Paraview] displaying simulation time rather than time step

I would like to do something similar to the Annotate Time filter, but rather than displaying the time step number, I need to display simulation date and time.

I have a text file with the actual simulation date and time associated with each time step.  Here are the first few lines of that file

Time step   Time step output, Actual time

0               0.00,           4/1/2013 15:00

1               65.83,          4/1/2013 15:01

2               125.88,         4/1/2013 15:02

3               201.00,         4/1/2013 15:03

4               268.65,         4/1/2013 15:04

5               328.83,         4/1/2013 15:05

6               366.46,         4/1/2013 15:06

…

So, rather than Time: 0 at the bottom of the 3D window, I’d like to have 4/1/2013 15:00

Any thoughts / recommendations on how to accomplish this task will be greatly appreciated.

Thanks,

Phil

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