[Paraview] csv -> vector variable -> streamline problem

[Andy Bauer]

Hi James,

You need to create volumetric cells for 3D. You can use the Delauney3D
filter to do that or use the Table to Structured Grid filter if your points
are ordered properly from in the CSV file. Then the stream tracer filter
will work fine.

Regards,
Andy

On Wed, Nov 26, 2014 at 10:22 AM, James Furness <pcxjf1 at nottingham.ac.uk>
wrote:

> Hi,
>
> I have a csv file that is a 16x16x16 of data in the form:
>
> x, y, z, rho, j_x, j_y, j_z
>
> I am using a pipeline of:
>
> csv Reader  |  Table To Points (x, as X Column… etc.)   |  Calculator
> (iHat* j_x+jHat* j_y+kHat* j_z)   >    Result
>
> Looking at Result in the spreadsheet view shows a vector variable as I
> would expect. Also, visualising the result of the calculator filter as 3D
> Glyphs displays an expected grid of arrows, but they are all oriented
> pointing along the X axis. When I colour this by the Magnitude of Result
> they are coloured as expected, with the expected areas of high magnitude
> being red etc.
>
> I suspect I have already run into problems at this point, but if I
> continue and add a Stream Tracer to Result I see nothing. There are no
> streamlines shown.
>
> I have been trying to work out the problem, and been searching around for
> any clues. Any help on pointing out where I have gone wrong is greatly
> appreciated.
>
> I have attached the example csv.
>
> Many thanks,
> James
>
>
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