[CIG-SHORT] Probing VTK data using Paraview 3

[Ravi Kanda]

This e-mail is to clarify a question that was raised during Charles' 
presentation at the CFEM workshop yesterday - regarding probing a point 
in space and time using Paraview.  I have been using Paraview 3.2.1 
(Linux and Darwin binaries) - and recommend this (or later) versions. 
The procedure is as follows:  Open the relevant VTK file - use the 
legacy vtk file (*..vtk) if you want to probe in time.  Under the 
"Filters >>  Data Analysis" Menu, there are a number of options for 
probing data both spatially and temporally.  Here's a brief list of what 
you can plot in 2D:

Y-Axis (Type of data):
Nodal data: Individual components or total magnitude of vector data
OR
Cell data
OR
Field data

X-Axis:
Time (for legacy VTK files extension - *..vtk - note 2 periods).  You 
can also follow the position change of a point (a "tracer") over time.
OR
Length along a probe line
OR
Actual point coordinates

Attached is a screen shot of Paraview 3.2.1 with three subplots: a 
sliced surface, a time-probe at a node (#50), and a line-probe along a 
line parallel to the x-axis at the surface.  I used the 
"savageprescott.cfg" example from the Pylith 1.2 binary distribution - 
located in the folder:  pylith-1.2.0-linux-i686/src/pylith/examples/3d/hex8

Hope this helps,
Ravi.
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Ravi Kanda
Seismological Laboratory, MC 252-21
Division of Geological and Planetary Sciences
California Institute of Technology

1200 E. California Blvd., Pasadena, CA 91125
Phone: 626-395-6971, Fax: 626-564-0715
Web Page: http://www.gps.caltech.edu/~rkanda

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For a human being, the unexamined life is not worth living - SOCRATES

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