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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkImageRegion.txx.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:39 $ |
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Version: $Revision: 1.4 $ |
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Copyright (c) Insight Software Consortium. All rights reserved. |
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See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. |
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Portions of this code are covered under the VTK copyright. |
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See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.htm for details. |
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This software is distributed WITHOUT ANY WARRANTY; without even |
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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*****PURPOSE. See the above copyright notices for more information. |
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=========================================================================*/ |
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DEF |
#ifndef _itkImageRegion_txx |
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#define _itkImageRegion_txx |
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#include "itkImageRegion.h" |
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namespace itk |
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{ |
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/** |
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* Instantiate object. |
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*/ |
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template<unsigned int VImageDimension> |
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ImageRegion<VImageDimension> |
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::ImageRegion() |
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{ |
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m_Index.Fill(0); |
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m_Size.Fill(0); |
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} |
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/** |
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* Destructor for the ImageRegion class. |
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*/ |
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template<unsigned int VImageDimension> |
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ImageRegion<VImageDimension> |
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::~ImageRegion() |
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{ |
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} |
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template<unsigned int VImageDimension> |
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unsigned long |
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ImageRegion<VImageDimension> |
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::GetNumberOfPixels() const |
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{ |
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unsigned long numPixels=1; |
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for (unsigned int i=0; i<VImageDimension; i++) |
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{ |
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numPixels *= m_Size[i]; |
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} |
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return numPixels; |
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} |
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template<unsigned int VImageDimension> |
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void |
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ImageRegion<VImageDimension> |
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::PrintSelf(std::ostream& os, Indent indent) const |
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{ |
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Superclass::PrintSelf(os, indent); |
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os << indent << "Dimension: " << this->GetImageDimension() << std::endl; |
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os << indent << "Index: " << this->GetIndex() << std::endl; |
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os << indent << "Size: " << this->GetSize() << std::endl; |
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} |
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template<unsigned int VImageDimension> |
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void |
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ImageRegion<VImageDimension> |
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::PadByRadius(unsigned long radius) |
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{ |
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unsigned long radiusVector[VImageDimension]; |
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for (unsigned int i=0; i < VImageDimension; ++i) |
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{ |
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radiusVector[i] = radius; |
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} |
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this->PadByRadius(radiusVector); |
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} |
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template<unsigned int VImageDimension> |
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void |
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ImageRegion<VImageDimension> |
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::PadByRadius(const SizeType &radius) |
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{ |
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this->PadByRadius( radius.GetSize() ); |
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} |
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template<unsigned int VImageDimension> |
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void |
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ImageRegion<VImageDimension> |
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::PadByRadius(const unsigned long radius[VImageDimension]) |
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{ |
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for (unsigned int i = 0; i < VImageDimension; i++) |
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{ |
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m_Size[i] += 2 * radius[i]; |
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m_Index[i] -= static_cast<long>(radius[i]); |
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} |
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} |
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template<unsigned int VImageDimension> |
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bool |
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ImageRegion<VImageDimension> |
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::Crop(const Self& region) |
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{ |
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long crop; |
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unsigned int i; |
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bool cropPossible = true; |
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// Can we crop? |
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for (i = 0; i < VImageDimension && cropPossible; i++) |
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{ |
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// Is left edge of current region to the right of the right edge |
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// of the region to crop with? (if so, we cannot crop) |
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if (m_Index[i] >= region.GetIndex()[i] |
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********+ static_cast<long>(region.GetSize()[i])) |
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{ |
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cropPossible = false; |
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} |
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// If right edge of the current region to the left of the left |
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// edge of the region to crop with? (if so, we cannot crop) |
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if (m_Index[i] + static_cast<long>(m_Size[i]) <= region.GetIndex()[i]) |
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{ |
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cropPossible = false; |
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} |
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} |
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// if we cannot crop, return without changing anythin |
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if (!cropPossible) |
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{ |
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return cropPossible; |
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} |
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// we can crop, so crop |
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for (i=0; i < VImageDimension; i++) |
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{ |
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// first check the start index |
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if (m_Index[i] < region.GetIndex()[i]) |
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{ |
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// how much do we need to adjust |
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crop = region.GetIndex()[i] - m_Index[i]; |
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// adjust the start index and the size of the current region |
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m_Index[i] += crop; |
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m_Size[i] -= static_cast<unsigned long>(crop); |
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} |
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// now check the final size |
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if (m_Index[i] + static_cast<long>(m_Size[i]) |
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********> region.GetIndex()[i] + static_cast<long>(region.GetSize()[i])) |
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{ |
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// how much do we need to adjust |
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crop = m_Index[i] + static_cast<long>(m_Size[i]) |
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********- region.GetIndex()[i] - static_cast<long>(region.GetSize()[i]); |
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// adjust the size |
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m_Size[i] -= static_cast<unsigned long>(crop); |
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} |
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} |
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return cropPossible; |
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} |
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template<unsigned int VImageDimension> |
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typename ImageRegion<VImageDimension>::SliceRegion |
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ImageRegion<VImageDimension> |
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::Slice(const unsigned long dim) const |
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{ |
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Index<SliceDimension> sliceIndex; |
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Size<SliceDimension> sliceSize; |
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unsigned int ii = 0; |
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for (unsigned int i=0; i < VImageDimension; i++) |
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{ |
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if (i != dim) |
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{ |
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sliceIndex[ii] = m_Index[i]; |
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sliceSize[ii] = m_Size[i]; |
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++ii; |
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} |
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} |
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return ImageRegion<SliceDimension>(sliceIndex, sliceSize); |
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} |
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} // end namespace itk |
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#endif |
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