Visualization a set of data using iso-surfaces

MrMcMahon · July 6, 2010, 08:37

Hello everyone,
I’m looking for a way to visualize a set of data using iso-surfaces. The set of data is a result-file of a few computations with three different parameters. I want to span the 3D-vector-space with these 3 parameters. The locations of the points in this vector space are given by a sobol sequence, thus they are distributed randomly.
Each of these nodes is getting a value, e.g. degree of efficiency or impulse. Now I want to create an iso-surface with this value, but it doesn’t work.
I tried it in EnSight and Paraview, but the result (“no result!”) is always the same.
One Problem could be, that I don’t have a grid. And no cells either.
Maybe anyone has an idea to that problem… or a suggestion about another program I could use.
Thanks
MrMcMahon

praveen · July 6, 2010, 09:26

What you have is a scattered data. You can triangulate it and then use any visualization tool.

Some tools already have ability to triangulate a scattered dataset.

MrMcMahon · July 6, 2010, 11:44

Thanks for your answer. I'm gonna try your suggestion and tell you if I was successful...

July 6, 2010, 08:37	Visualization a set of data using iso-surfaces	#1
MrMcMahon New Member Join Date: Jul 2010 Posts: 2 Rep Power: 0	Hello everyone, I’m looking for a way to visualize a set of data using iso-surfaces. The set of data is a result-file of a few computations with three different parameters. I want to span the 3D-vector-space with these 3 parameters. The locations of the points in this vector space are given by a sobol sequence, thus they are distributed randomly. Each of these nodes is getting a value, e.g. degree of efficiency or impulse. Now I want to create an iso-surface with this value, but it doesn’t work. I tried it in EnSight and Paraview, but the result (“no result!”) is always the same. One Problem could be, that I don’t have a grid. And no cells either. Maybe anyone has an idea to that problem… or a suggestion about another program I could use. Thanks MrMcMahon

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July 6, 2010, 09:26		#2
praveen Super Moderator Praveen. C Join Date: Mar 2009 Location: Bangalore Posts: 342 Blog Entries: 6 Rep Power: 18	What you have is a scattered data. You can triangulate it and then use any visualization tool. Some tools already have ability to triangulate a scattered dataset.

July 6, 2010, 11:44		#3
MrMcMahon New Member Join Date: Jul 2010 Posts: 2 Rep Power: 0	Thanks for your answer. I'm gonna try your suggestion and tell you if I was successful...