Re: [Paraview] Help Need in Streamline for CGNS file

[Richard GRENON]

Hello.

For streamlines on a curved surface, you should get better results using 
the SurfaceLIC plugin.


First, you have to load this plugin through the menu Tools-Manage 
plugins: select the SurfaceLic plugin, then click on the Load 
selected button. You can also click on the little cross before 
SurfaceLIC and check the AutoLoad check box: thus, the plugin will be 
loaded each time you start Paraview.


Then, you should have a velocity Vector in your dataset. If you have 
not, build a vector from three scalar components using the Calculator 
filter.


When you have a vector data,  the Surface LIc item is available in the 
list of representation mode. Select it and you will get a picture that 
looks like an oil flow visualization. You can adjust some LIC parameters 
in bottom of the Display tab. You can choose another vector if you want 
because LIC uses by default  the first vector that it finds, and it may 
be the normal vector.


Richard

--
 Richard GRENON
 ONERA
 Departement d'Aerodynamique Appliquee - DAAP/ACI
 8 rue des Vertugadins
 92190 MEUDON - FRANCE
 phone : +33 1 46 73 42 17
 fax   : +33 1 46 73 41 46
 mailto:richard.gre...@onera.fr
 http://www.onera.fr

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[Paraview] Help Need in Streamline for CGNS file

[Mei Chen]

Hi,

I have a paraview 3.14 under 64-bit Win7. I have a multi-zone cgns file
(say 10-zone or more) with about 6 million points.
The grid is curvilinear and I used calculator to do the coordinate convert,
thing are good. I use calculate the velocity vector with calculator also
and I do get the velocity vector.

(1) When I apply the stream tracer filter, I got nothing. The number of
point and cell are zero. I think the connectivity of structured grid is
explicit. I have no idea  I want to know what is the necessary input for a
stream tracer filter to get streamline?

(2) I also tried glyph filter to see what I got for the created velocity
vector. The result is wried - I only have 50K points left. All the points
stay at the outline of the curvilinear grid or the edge face. Any idea?

Thanks a lot!

Mei Chen
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