[vtkusers] about converting java array to vtkImageData

[Yixun Liu]

Hi,

I want to convert a  java 3D array(threeDarray) to a vtkImageData object(image).

I do it use java as below:

       vtkImageData image = new vtkImageData();
       image.SetDimensions(iWidth, iHeight, iNumImg);
       image.SetOrigin(0.0, 0.0, 0.0);
       image.SetSpacing(spacing[0],spacing[1],spacing[2]);
       image.SetScalarType(5);
       image.AllocateScalars();
       vtkDataArray array = image.GetPointData().GetScalars();
       

        for(int iZ = 0; iY < iNumImg; iZ++){

          for(int iY= 0; iY < iHeight; iY++){

            for(int iX = 0; iX < iWidth; iX++){

              array.InsertNextTuple1(threeDarray[iZ][iY][iX]);
            }
      }
}

However, it is very slow due to the insertNextTuple(). Anybody tell me a queikly method?

Best regards,

Yixun Liu
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