[vtkusers] Java vtkPointToCellData

[Sebastien Jourdain]

Try that

vtkPointDataToCellData polyDataCreateCells = new vtkPointDataToCellData();
polyDataCreateCells.SetInputData(polyData);
polyDataCreateCells.PassPointDataOn();
polyDataCreateCells.Update();  // <==== For the execution of the filter

// Create new polyData, retrieve completed polyData from polyDataCreateCells
vtkPolyData polyDataComplete = polyDataCreateCells.GetPolyDataOutput(); //
No need to create a polydata just get a ref from the filter

On Mon, Sep 21, 2015 at 8:20 AM, James Labiak <
jim at jslengineeringsoftware.com> wrote:

> Hello all,
> I created a pipeline that seems to make sense to me, but always my
> polyDataComplete is empty. Any ideas why this code doesn't work? The only
> vtkPointToCellData example on the web that I can find uses blow.vtk, which
> doesn't exist on my 6.0.0 installation anywhere. The polyData variable gets
> correctly populated with the points and their scalars below.
>
>         // Create a new, empty polyData
>         polyData = new vtkPolyData();
>
>         // populate the polyData points
>         polyData.SetPoints(points);
>
>         // populate the polyData scalars
>         polyData.GetPointData().SetScalars(colorsScalars);
>
>         vtkPointDataToCellData polyDataCreateCells = new
> vtkPointDataToCellData();
>         polyDataCreateCells.SetInputData(polyData);
>         polyDataCreateCells.PassPointDataOn();
>
>         // Create new polyData, retrieve completed polyData from
> polyDataCreateCells
>         vtkPolyData polyDataComplete = new vtkPolyData();
>         polyDataComplete = polyDataCreateCells.GetPolyDataOutput();
>
>         vtkPolyDataMapper polyMapper = new vtkPolyDataMapper();
>         polyMapper.SetInputData(polyDataComplete);
>         polyMapper.ScalarVisibilityOn();
>         polyMapper.SetScalarRange(scalarMin, scalarMax);
>         polyMapper.Update();
>
>         vtkActor polyActor = new vtkActor();
>         polyActor.SetMapper(polyMapper);
>         polyActor.GetProperty().SetColor(1.0, 1.0, 1.0);
>
> // ...Usual render stuff...
>
> Thanks,
> Jim
>
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