[vtkusers] Using vtkMarchingCubes3D with vtkContourWidget

[Jonathan Morra]

Thanks for your help, but your suggestion isn't working for me.  Here is a
snippet of my code, could you please let me know what I'm doing wrong.

Thanks

    vtkPlane cutPlane = new vtkPlane();
    switch (orientation) {
        case OrthoPanel.ORIENTATION_XY:
            cutPlane.SetNormal(0, 0, 1);
            break;
        case OrthoPanel.ORIENTATION_XZ:
            cutPlane.SetNormal(0, 1, 0);
            break;
        case OrthoPanel.ORIENTATION_YZ:
            cutPlane.SetNormal(1, 0, 0);
            break;
    }
    vtkCutter cutter = new vtkCutter();

    vtkImageData imageData = imageViewer.GetInput();
    double[] bounds = imageData.GetBounds();
    double spacing = imageData.GetSpacing();

    cutter.SetInput(organ);
    for (double cutLoc = bounds[0]; cutLoc <= bounds[1]; cutLoc+=spacing[0])
{
        double[] cutOrigin = new double[3];
        cutOrigin[orientation] = cutLoc;
        cutPlane.SetOrigin(cutOrigin);
        cutter.SetCutFunction(cutPlane);
        cutter.Update();

        if (cutter.GetOutput().GetNumberOfPoints() == 0)
            continue;

        vtkStripper stripper = new vtkStripper();
        stripper.SetInputConnection(cutter.GetOutputPort());
        stripper.Update();
        vtkPolyData stripData = stripper.GetOutput();
    }

On Tue, Nov 2, 2010 at 8:42 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> Run vtkStripper on the output of vtkCutter. It will order the
> polylines properly.
>
> On Tue, Nov 2, 2010 at 9:59 PM, Jonathan Morra <jonmorra at gmail.com> wrote:
> > I have a 3D vtkPolyData mesh that I wish to convert into 2D
> > vtkContourWidgets.  The poly data was generated with vtkMarchingCubes3D.
>  My
> > process is to run vtkCutter on each slice of the poly data and use that
> as
> > seed data to create my contour widgets.  However, when I create my
> contour
> > widgets the points are all out of order.  I found the following post that
> > seems to be stating what I want to do
> >
> http://vtk.1045678.n5.nabble.com/question-about-vtkContourWidget-vtkContourRepresentation-td1255118.html#a3247766
> > however, this example is written in C++ and I'm working in Java, and
> there
> > doesn't appear to be any vtkCellArray.GetNextCell() method in Java's VTK.
> > 1.  Is this the solution to my problem?
> > 2.  If so can someone please translate this code into Java, and if this
> > isn't the solution I'm looking for, can someone suggest one?
> > Thanks
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