[Paraview] paraview novice attempts 1st viz

[Moreland, Kenneth]

Sorry Thomas, but you are asking for the impossible.  You cannot expect
ParaView to magically apply semantic meaning to the columns of your data
and generate a topology that is not nonsense (at least, not without a
lot of help).  You have asked ParaView to read in a table (a csv holds a
table of data, no more, no less) and that is exactly what ParaView has
done.  You can view the data in a spreadsheet-type view and you can plot
the columns of data.

 

You should use a data format that gives the topological nature of your
data.  If your data is arranged in a 2D grid, you can store the data in
a simple image format.  The simplest image format is just a 2D array
written out as binary data to a file (read in with the "Raw (binary)
Files" reader).  ParaView also reads in .png files and it's pretty easy
to extend it to read other image files.

 

You can also stuff your data into VTK Legacy File format.  This is a
simple file format that supports most of the types of data that VTK can
handle and is pretty easy to build by hand.  You can get information
about hat format from the VTK User's Guide or in the following link.

 

http://www.vtk.org/pdf/file-formats.pdf

 

-Ken

 

 

________________________________

From: paraview-bounces+kmorel=sandia.gov at paraview.org
[mailto:paraview-bounces+kmorel=sandia.gov at paraview.org] On Behalf Of
fredrikaustin
Sent: Wednesday, October 03, 2007 7:14 AM
To: paraview at paraview.org
Subject: [Paraview] paraview novice attempts 1st viz

 

Hello all,

I'm having a difficult time viewing what must be the simplest data set
possible.  I have a csv file that includes 3 columns of numbers which
I'd like to view as 'elevation' type data: 1st two columns give x & y
coord (regular, though step-size for x and y are different), and 3rd
column gives a height (the data is actually error vs. 2 different
params).   I can open the file, and  see that it has read the columns of
data correctly, but can't get a plot of this surface.

Seems this should be simple to view, but after blundering around the
interface for too long, it is not as obvious as one would hope.

Thanks,
Thomas Blom

  

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