DCMTK读取DICOM图像数据SamplesPerPixel = 3，PlanarConfiguration=1时，如何用VTK显示？

我用dcmtk读取图像的DICOM图像像素数据SamplesPerPixel = 3，PlanarConfiguration=1时，用vtk显示，需要在哪里设置这个PlanarConfiguration=1的参数？

vtkUnsignedCharArray *scalars = vtkUnsignedCharArray::New();

((vtkUnsignedCharArray*)(scalars))->SetArray((unsigned char*)m_pImageData->getPixelData() + offLen / sizeof(unsigned char), eachLen, 1);

scalars->SetNumberOfComponents(bits);