[vtkusers] java vtkRenderWindow.GetPixelData

[Sebastien Jourdain]

You can use the VTK way, which will create a ImageData of the captured data.

http://www.vtk.org/Wiki/VTK/Examples/Cxx/Utilities/Screenshot

On Wed, Aug 19, 2015 at 5:07 AM, louiskoo <419655660 at qq.com> wrote:

> 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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