ParaView
This assignment is not compulsory

There are several alternatives to OpenDX. In this assignment you can test one of them, ParaView.

I have fetched a pre-compiled version for Linux. To run it you should modify your unix path:

If you are using tcsh:
set path = ( $path /chalmers/sw/unsup/ParaView-2.6.0/bin )

If you are using bash:
export PATH=$PATH:/chalmers/sw/unsup/ParaView-2.6.0/bin

Start the program by typing paraview

The learn a lot about ParaView, see the Documentation link on ParaView's homepage (books you can buy).
There is a manual for an older version: http://www.paraview.org/files/v1.6/ParaViewUsersGuide.PDF

A free tutorial, Introduction to ParaView, is available at the PITTSBURGH SUPERCOMPUTING CENTER. I have also fetched the data for the exercises. You can find it under: /users/mdstud/thomas/VIS/ParaViewTutorialData
More tutorials.

If you are going to make your own example, you need a description of an input data format. One simple (ParaView supports several) is the legacy VTK file format. Here is a slightly dated description.

I converted the igloo-data (adding connection data which you do not have access to) to the above format. Here are a few images produced by ParaView. First part of some isosurfaces, then half the solid object. The last image shows a slice and the outline of  some of the tetrahedrons (the cells are tetrahedrons). In the last image I use a different colour map. The data for the igloo is available on the student system:  ~thomas/VIS/data/igloo.vtk

Isosurfaces

Solid

Mesh

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