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sampleDict not working (undefined keyword origin)

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Old   September 8, 2016, 11:12
Question sampleDict not working (undefined keyword origin)
  #1
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Max Vorstadt
Join Date: May 2016
Posts: 28
Rep Power: 9
jet_engine is on a distinguished road
Hi!

This is my sampleDict:

Code:
interpolationScheme cellPoint;

setFormat           raw;

fields              ( UMean );

sets
(
    sample_U
    {
        type    array;
        axis    xyz;
        coordinateSystem
        {
            e1      (1 0 0);
            e2      (0 1 0);
            origin  ( -0.6 0 0 );
        }
        pointsDensity   (100 100 0);
        spanBox         (0.6 0 0);

    }
);
I try to run it by:
Code:
sampleDict -dict system/sampleDict -latestTime
But it gives me the following error:
Code:
--> FOAM FATAL IO ERROR: 
keyword origin is undefined in dictionary "case/system/sampleDict.sets"

file: case/system/sampleDict.sets from line 30 to line 39.

    From function const Foam::entry& Foam::dictionary::lookupEntry(const Foam::word&, bool, bool) const
    in file db/dictionary/dictionary.C at line 439.

FOAM exiting
I've tried:
  • Adding origin out of the function as well
  • Changing xyz to y, to x, to xy, ...

But the error is still the same, and ORIGIN is there! Does anyone know why it does not work?

Thanks!
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Old   May 25, 2022, 08:44
Default array sampling problems!
  #2
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David Pavilons
Join Date: Apr 2022
Posts: 2
Rep Power: 0
Poefke is on a distinguished road
I was able to make it work!

sets
(

array_V
{
// 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 );
}

origin (639 0 4);
coordinateRotation
{
type none;
}

pointsDensity (10 1 40);
spanBox (2 -1 8);

}
);

but i get strange coordinates for my spanbox. I specified my spanbox having a length of 2 meters but i get data points way beyond 641 in x direction. Does somebody know what is going wrong? i'm using openfoamV1812

639.182 -0.5 4.19512 7.94671e-06
639.727 -0.5 4.19512 2.29941e-06
640.636 -0.5 4.19512 1.27209e-06
643.545 -0.5 4.19512 9.44759e-14
645.545 -0.5 4.19512 2.44529e-11
647.909 -0.5 4.19512 2.52633e-10
650.636 -0.5 4.19512 5.80289e-06
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