[Paraview] filename_%t is not expanded to current time in Catalyst

Andy Bauer andy.bauer at kitware.com
Wed Jan 17 11:17:30 EST 2018


Hi,

My guess is that the TimeStep isn't getting set properly in the adaptor
(though it looks like it should be in
"dataDescription->SetTimeData(runTime.value(),
runTime.deltaTValue());"). My suggestion would be to add in the following
to either the RequestDataDescription() or DoCoProcessing() methods in the
python script to see what Catalyst thinks the time step is:
    print("In script2.py, the data time step is ",
datadescription.GetTimeStep())


On Wed, Jan 17, 2018 at 9:57 AM, SeongMo <seongmo.yeon at gmail.com> wrote:

> Hi,
>
> I wrote a OpenFOAM adaptor for Catalyst.
>
> In the ParaView, the connection is made good and shows filtered flow field
> as written in the python script.
>
> However, filename_%t and image_%t is not expanded as time marching but
> just write filename_0 and image_0.png.
>
> As far as I know, %t should be replaced with current time as given in
> dataDescription->SetTimeData.
>
> Any help would be appreciated.
>
>
> FYI, python script is attached and snippet of my OpenFOAM Adaptor code for
> Catalyst is as follows:
>
> // icoFoam.C
>
> #ifdef USE_CATALYST
>     Foam::HashTable<string> options = args.options();
>     IStringStream is(options["scriptList"]);
>     wordList scriptList = readList<word>(is);
>     OFAdaptor::Initialize(scriptList, mesh);
> #endif
>     while (runTime.loop())
>     {
>         runTime.write();
> #ifdef USE_CATALYST
>         OFAdaptor::CoProcess(mesh, runTime);
> #endif
>     }
> #ifdef USE_CATALYST
>     OFAdaptor::Finalize();
> #endif
>
>
> // OFAdaptor.C
>
> void CoProcess(Foam::fvMesh& mesh, Foam::Time& runTime)
> {
>        vtkNew<vtkCPDataDescription> dataDescription;
>        dataDescription->AddInput("input");
>        dataDescription->SetTimeData(runTime.value(),
> runTime.deltaTValue());
>        if (runTime.end())
>        {
>            // assume that we want to all the pipelines to execute
>            // if it is the last time step
>            dataDescription->ForceOutputOn();
>        }
>        if (Processor->RequestDataDescription(dataDescription.GetPointer())
> != 0)
>        {
>            Foam::polyMesh::readUpdateState meshState = mesh.readUpdate();
>
>            if(meshState != Foam::polyMesh::UNCHANGED)
>            {
>                BuildVTKGrid(mesh);
>            }
>            UpdateVTKAttributes(mesh);
> dataDescription->GetInputDescriptionByName("input")->
> SetGrid(multiBlockDataSet);
>            Processor->CoProcess(dataDescription.GetPointer());
>        }
> }
>
>
> --
> SeongMo Yeon, Ph.D, Senior Engineer
> Offshore Hydrodynamics Research
> SAMSUNG HEAVY INDUSTRIES CO., LTD.
> Central Research Institute
> E-mail : seongmo.yeon at gmail.com
> Tel :
> --------------------------------------------------------
> Fluctuat nec mergitur
>
>
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