[Paraview] Visualizing histogram

[Mark Richardson]

The new charts in vtk/guisupport/qt/chart have support for strings and numbers on the axes. The old charts only support numbers. We're currently integrating the new charts into paraview. Then, you'll be able to view the vtkTable.

The chart views in vtk/guisupport/qt can be displayed using python. There are some tests you can use as an example (I can't remember where they are at the moment). I'm not sure how well that will work in paraview though. It may have to be done stand-alone.

Mark Richardson

----- Original Message -----
From: "Jacques Papper" <jpapper at ara.co.uk>
To: "John Biddiscombe" <biddisco at cscs.ch>, "paraview" <paraview at paraview.org>
Sent: Tuesday, February 10, 2009 9:30:29 AM GMT -07:00 US/Canada Mountain
Subject: [Paraview] Visualizing histogram

John, 

Thanks a lot for your help. I have re-used part of your code to create a
Multi-block to table filter. (Basically exactly the same as your
probeIntegration but without the integration step).
The problem I have now is in creating a histogram which has the Block Id
(String - first column of data in my vtkTable) on the x axis and the data on
the y axis. 
It seems that the histogram plotting capability in ParaView can not handle
String Ids instead of numbers.

- Has anyone implemented such capability ? 

- What is the best way to access the vtkTable object through Python directly
(to then possibly use some python plotting facility)?

- Is it possible to create an image (Jpg, png etc..) from Python of an XY
plot or a Bar Chart ?

Jacques PAPPER
Applied CFD Team Leader
Tel: +44 (0) 1234 324677


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