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Postprocess lagrangian fields

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Old   December 21, 2006, 11:50
Default Hello Everyone, I have run
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David Hebert
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Hello Everyone,

I have run a simulation with dieselFoam. I would now like to read the position and diameter of a parcel and make a pdf at a partucular time. I am attempting to read the lagrangian/positions field and am having trouble setting the file pointer to where the data starts. For example, if I use:

IFstream p(positionsFile);

Info<<endl;

string dummy;
for(label i=0; i<40; i++)
{
p >> dummy;
Info<<dummy<<endl;
}

I get an error when the IFstream reaches a non-string, which happens to be the text "FoamFile":

--> FOAM FATAL IO ERROR : wrong token type - expected string found on line 9 the word 'FoamFile'

Can someone give pointers on how to read this data? Right now I have the data in ascii format, but would like to eventually read binary data.

Thanks in advance for your help,

David
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Old   December 21, 2006, 11:58
Default Hi again, Regarding the abo
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David Hebert
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Hi again,

Regarding the above question of reading lagrangian fields, perhaps it would be easier to read the vtk file? Is there an OpenFOAM class that would read a particular variable from a vtk file?

Thanks again,

David
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Old   December 21, 2006, 18:46
Default 2] there is no OpenFOAM classe
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Mattijs Janssens
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2] there is no OpenFOAM classes to read vtk files.
1] the lagrangian fields are IOFields(i.e. registered fields residing in the case directory). Easiest is to study one of the data converters (e.g. foamToVTK) in the postProcessing utilities source directory.
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