# Paraview: How to plot over a circle?

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 August 11, 2011, 12:37 Paraview: How to plot over a circle? #1 New Member   Join Date: Jun 2011 Posts: 6 Rep Power: 6 Dear Foamers, I want to analyse the velocity profile of a turbomachine. Therefore I want to plot the velocity over a circle. (radius, sampling points) But the problem is, that paraview only offers plotting over a line or a sphere! In the end my aim is comparing plotted velocity to CFXpost, "surface of Revolution". please help me! Best regards, chris

August 11, 2011, 13:47
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Bernhard Gschaider
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Quote:
 Originally Posted by ChristianE46 Dear Foamers, I want to analyse the velocity profile of a turbomachine. Therefore I want to plot the velocity over a circle. (radius, sampling points) But the problem is, that paraview only offers plotting over a line or a sphere! In the end my aim is comparing plotted velocity to CFXpost, "surface of Revolution".
It is possible. Apply the plane filter. Then use the "Plot Over Intersection Curve"-filter. In that select the sphere. What the intersecting curve between a plane and a sphere is (if they're properly placed) is left as an exercise to the reader.

 August 13, 2011, 14:27 #3 New Member   Join Date: Jun 2011 Posts: 6 Rep Power: 6 Thanks a lot you for your help! It works, but not in the way I exactly wanted to. What I get on intersection is a octagon, not a circle. So I tried it the other way: First I take a sphere source. There I chose a really high theta resolution, so I got a very good approach to a circle. Next I take the "plot on intersection curves" and took the plane: But Paraview don't want to plot not one of the physical quantities. (it offers only useless things like "normals" or "points"). paraview makes me really depressed. Regards, Chris

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