//=========================================================================================================================
//update the output for the outputRegionForThread
//=========================================================================================================================
//update the output for the outputRegionForThread
template<class InputImageType, class OutputImageType>
void ComposeVFFilter<InputImageType, OutputImageType>::ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, itk::ThreadIdType threadId )
template<class InputImageType, class OutputImageType>
void ComposeVFFilter<InputImageType, OutputImageType>::ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, itk::ThreadIdType threadId )
{
// The following block is equivalent to the following line without
// having to call floor. (Only for positive inputs, we already now that is in the image)
{
// The following block is equivalent to the following line without
// having to call floor. (Only for positive inputs, we already now that is in the image)