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Writing ascii data for an entire vector field?

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Old   August 20, 2014, 19:41
Question Writing ascii data for an entire vector field?
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I've written a matlab program that reads the files created by sample. Sample creates those nice ascii column data files that are so convenient for matlab. Can I use sample to export a similar file for the entire vector field U? If not does anyone know how this could be achieved?
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Old   August 20, 2014, 20:26
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I think I found it already. It's a set type called 'array' but there are still some bits I don't get it.

Are e1 and e2 direction normals? Is origin the center of span box or the corner and then spanbox is opposite corner? And I'm pretty sure pointdensity is the number of samples in each direction.

Code:
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "system";
    object      sampleDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

interpolationScheme cellPoint;

setFormat       raw;

sets
(
    sample
    {
        // Sample 'pointsDensity' points in a box with origin at 'origin'
        // plus the vector 'spanBox'
        type    array;
        axis    xyz;
        coordinateSystem
        {
            e1      (1 0 0);
            e2      (0 1 0);
            origin  ( 0 0 0 );
        }
        pointsDensity   (10 10 10);
        spanBox         (3 0.2 3);

    }
);
fields          ( U );


// ************************************************************************* //
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