[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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