static void Paint(mitk::Image::Pointer image, itk::Index<3> index, unsigned int timeStep)
{
// As soon as the ImagePixelWriteAccessor object goes out of scope at the
// end of this function, the image will be unlocked again (RAII).
mitk::ImagePixelWriteAccessor<T> writeAccessor(image, image->GetVolumeData(timeStep));
writeAccessor.SetPixelByIndex(index, std::numeric_limits<T>::min());
// Don't forget to update the modified time stamp of the image. Otherwise,
// everything downstream wouldn't recognize that the image changed,
// including the rendering system.
image->Modified();
}
void ReadPixel(mitk::PixelType, mitk::Image::Pointer image, itk::Index<3> indexPoint, double& value)
{
if (image->GetDimension() == 2)
{
mitk::ImagePixelReadAccessor<PixelType,2> readAccess(image, image->GetSliceData(0));
itk::Index<2> idx;
idx[0] = indexPoint[0];
idx[1] = indexPoint[1];
value = readAccess.GetPixelByIndex(idx);
}
else if (image->GetDimension() == 3)
{
mitk::ImagePixelReadAccessor<PixelType,3> readAccess(image, image->GetVolumeData(0));
itk::Index<3> idx;
idx[0] = indexPoint[0];
idx[1] = indexPoint[1];
idx[2] = indexPoint[2];
value = readAccess.GetPixelByIndex(idx);
}
else
{
//unhandled
}
}