[Paraview] CoProcessing with Fortran and ParaView 3.98
Andy Bauer
andy.bauer at kitware.com
Wed Mar 20 10:08:46 EDT 2013
Hi Lucas,
Can you share your co-processing script and any run output? There may be
warnings in the output or info in the script that will help figure that out.
Thanks,
Andy
On Wed, Mar 20, 2013 at 10:04 AM, Pettey . Lucas <LPettey at drc.com> wrote:
> Hi Berk,
>
> Thanks for the help.
>
> I found that this example is written based on an earlier version of VTK so
> some of the function calls have changed. Based on your advice and some of
> the examples contained in the ParaView wiki, I have gotten it to compile
> and run.
>
> Now I just have to figure out why it isn't generating any VTK objects....
>
> Probably something wrong with my python co-processing script.
>
> Thanks
> Lucas
> ________________________________
> From: Berk Geveci [berk.geveci at kitware.com]
> Sent: Tuesday, March 19, 2013 6:48 PM
> To: Pettey . Lucas
> Cc: paraview [paraview at paraview.org]
> Subject: Re: [Paraview] CoProcessing with Fortran and ParaView 3.98
>
> You can simply delete this line:
>
> Grid->SetNumberOfScalarComponents(2);
>
> It is redundant given the following later:
>
> field->SetNumberOfComponents(2);
>
> You also need to #include <vtkSmartPointer.h>.
>
> Best,
> -berk
>
>
>
> On Tue, Mar 19, 2013 at 2:31 PM, Pettey . Lucas <LPettey at drc.com<mailto:
> LPettey at drc.com>> wrote:
> Hello everyone,
>
> I am trying to run a simple Fortran coprocessing example with a complex
> data type. I am following the example here:
>
>
> http://en.wikibooks.org/wiki/Parallel_Spectral_Numerical_Methods/Visualization_with_ParaView_CoProcessing#ParaView_CoProcessing_Resources
>
> I have written a basic Fortran code that outputs the data in binary,
> opened that in ParaView, output the coprocessing script and then written
> the adaptor following the example in the above link. My adaptor looks like:
>
> extern "C" void createcpimagedata_(int* nx, int* ny, int* nz)
> {
> if (!ParaViewCoProcessing::GetCoProcessorData()) {
> vtkGenericWarningMacro("Unable to access CoProcessorData.");
> return;
> }
>
> // The simulation grid is a 2-dimensional topologically and geometrically
> // regular grid. In VTK/ParaView, this is considered an image data set.
> vtkImageData* Grid = vtkImageData::New();
>
> // assuming dimZ == 1 for now
> Grid->SetDimensions(*nx, *ny, *nz);
> Grid->SetNumberOfScalarComponents(2);
>
> // Setting the Origin and Spacing are also options.
>
> // Name should be consistent between here, Fortran and Python client
> script.
>
> ParaViewCoProcessing::GetCoProcessorData()->GetInputDescriptionByName("input")->SetGrid(Grid);
> }
>
> // Add field(s) to the data container.
> // Separate from above because this will be dynamic, grid is static.
> // Might be an issue, VTK probably assumes row major, but
> // omeg probably passed column major...
> // by hand name mangling for fortran
> extern "C" void addfield_(double* scalars, char* name)
> {
> vtkCPInputDataDescription *idd =
> ParaViewCoProcessing::GetCoProcessorData()->GetInputDescriptionByName("input");
>
> vtkImageData* Image = vtkImageData::SafeDownCast(idd->GetGrid());
>
> if (!Image) {
> vtkGenericWarningMacro("No adaptor grid to attach field data to.");
> return;
> }
>
>
> // field name must match that in the fortran code.
> if (idd->IsFieldNeeded(name)) {
> vtkSmartPointer<vtkDoubleArray> field =
> vtkSmartPointer<vtkDoubleArray>::New();
> field->SetNumberOfComponents(2);
> field->SetName(name);
> field->SetArray(scalars, 2* Image->GetNumberOfPoints(), 1);
> Image->GetPointData()->AddArray(field);
>
> }
> }
>
> I am getting some errors from the Makefile generated by Cmake:
>
> /Users/lucaspettey/codes/BEC/coprocVTK.cxx:40:38: error: too few arguments
> to function call, expected 2, have 1
> Grid->SetNumberOfScalarComponents(2);
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
> /Users/lucaspettey/ParaView-git/ParaView/VTK/Common/DataModel/vtkImageData.h:298:3:
> note: 'SetNumberOfScalarComponents' declared here
> static void SetNumberOfScalarComponents( int n, vtkInformation*
> meta_data);
> ^
> /Users/lucaspettey/codes/BEC/coprocVTK.cxx:67:5: error: unknown type name
> 'vtkSmartPointer'; did you mean 'vtkSmartPointerBase'?
> vtkSmartPointer<vtkDoubleArray> field =
> vtkSmartPointer<vtkDoubleArray>::New();
> ^~~~~~~~~~~~~~~
> vtkSmartPointerBase
> /Users/lucaspettey/ParaView-git/ParaView/VTK/Common/Core/vtkOStreamWrapper.h:36:7:
> note: 'vtkSmartPointerBase' declared here
> class vtkSmartPointerBase;
> ^
> /Users/lucaspettey/codes/BEC/coprocVTK.cxx:67:20: error: expected
> unqualified-id
> vtkSmartPointer<vtkDoubleArray> field =
> vtkSmartPointer<vtkDoubleArray>::New();
> ^
> /Users/lucaspettey/codes/BEC/coprocVTK.cxx:68:5: error: use of undeclared
> identifier 'field'
> field->SetNumberOfComponents(2);
> ^
> /Users/lucaspettey/codes/BEC/coprocVTK.cxx:69:5: error: use of undeclared
> identifier 'field'
> field->SetName(name);
> ^
> /Users/lucaspettey/codes/BEC/coprocVTK.cxx:70:5: error: use of undeclared
> identifier 'field'
> field->SetArray(scalars, 2* Image->GetNumberOfPoints(), 1);
> ^
> /Users/lucaspettey/codes/BEC/coprocVTK.cxx:71:37: error: use of undeclared
> identifier 'field'
> Image->GetPointData()->AddArray(field);
> ^
>
> Any help is appreciated.
>
> Thanks,
> Lucas
>
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