[vtkusers] java vtkRenderWindow.GetPixelData

[louiskoo]

I use the vtkRenderWindow.GetPixelData() to capture RenderWindow screen's
image in C#:

byte[] vtkScreenBuffer = null;
            int imgWidth = 0, imgHeight = 0;
            if (vtkScreenBuffer == null)
            {
                imgWidth = _renwin.GetSize()[0];
                imgHeight = _renwin.GetSize()[1];


                vtkUnsignedCharArray data = vtkUnsignedCharArray.New();
                _renwin.GetPixelData(0, 0, imgWidth - 1, imgHeight - 1, 0,
data);

                int s = 3 * (int)data.GetNumberOfTuples();
                vtkScreenBuffer = new byte[s];
            }
            IntPtr ptr = _renwin.GetPixelData(0, 0, imgWidth - 1, imgHeight
- 1, 0);
            Marshal.Copy(ptr, vtkScreenBuffer, 0, vtkScreenBuffer.Length);


However,I don't know how to realize it in Java.  Anyone can give me a idea?



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