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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkConicShellInteriorExteriorSpatialFunction.h.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:34 $ |
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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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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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#ifndef __itkConicShellInteriorExteriorSpatialFunction_h |
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#define __itkConicShellInteriorExteriorSpatialFunction_h |
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#include "vnl/vnl_vector.h" |
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#include "itkInteriorExteriorSpatialFunction.h" |
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#include "itkCovariantVector.h" |
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namespace itk |
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{ |
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/** |
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* \class ConicShellInteriorExteriorSpatialFunction |
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* \brief Spatial function implementation of a conic shell |
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* |
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* We are creating search areas from BoundaryPoint1 in which to look for |
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* candidate BoundaryPoint2's with which to form core atoms. Assume the |
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* "worst case" that BoundaryPoint2 is somewhere in that search area pointing |
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* directly at BoundaryPoint1. |
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* |
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* The search area (ConicShell?) from each BoundaryPoint1 has the following parameters: |
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* |
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* DistanceMax and DistanceMin from the location of the BoundaryPoint |
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* |
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* AngleMax from the line along the gradient at the boundary point. |
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* This is determined in n dimensions by taking the dot product of two vectors, |
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* (1) the normalized gradient at BoundaryPoint1 and |
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* (2) the normalized vector from BoundaryPoint1 to BoundaryPoint2. |
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* |
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* If the absolute value of that dot product is greater than (1 - epsilon) |
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* then you are in the ConicShell. This epsilon is the same one determining |
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* face-to-faceness in the IEEE TMI paper. |
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* |
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* Polarity, i.e. which direction along the gradient of BoundaryPoint1 you want to look. |
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* |
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* \ingroup SpatialFunctions |
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* |
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* */ |
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template <unsigned int VDimension=3, typename TInput=Point<double,3> > |
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class ITK_EXPORT ConicShellInteriorExteriorSpatialFunction: |
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****public InteriorExteriorSpatialFunction<VDimension, TInput> |
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{ |
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public: |
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/** Standard class typedefs. */ |
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typedef ConicShellInteriorExteriorSpatialFunction Self; |
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typedef InteriorExteriorSpatialFunction<VDimension> Superclass; |
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typedef SmartPointer<Self> Pointer; |
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typedef SmartPointer<const Self> ConstPointer; |
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/** Run time information. */ |
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itkTypeMacro(ConicShellInteriorExteriorSpatialFunction,InteriorExteriorSpatialFunction); |
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/** Method for creation through the object factory. */ |
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itkNewMacro(Self); |
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/** Input type for the function. */ |
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typedef typename Superclass::InputType InputType; |
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/** Output type for the function. */ |
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typedef typename Superclass::OutputType OutputType; |
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/** The type of vector used to store the gradient info. */ |
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typedef CovariantVector<double, VDimension> GradientType; |
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/** Evaluates the function at a given position */ |
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OutputType Evaluate(const InputType& position) const; |
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/** Set/Get the origin of the function. */ |
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itkGetMacro( Origin, InputType); |
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itkSetMacro( Origin, InputType); |
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/** Set/Get the gradient at the origin of the function. */ |
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GradientType GetOriginGradient() {return m_OriginGradient;} |
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void SetOriginGradient(GradientType grad); |
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/** Set/Get the minimum search distance. */ |
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itkGetMacro( DistanceMin, double); |
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itkSetMacro( DistanceMin, double); |
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/** Set/Get the maximum search distance. */ |
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itkGetMacro( DistanceMax, double); |
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itkSetMacro( DistanceMax, double); |
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/** Set/Get the tolerance of the in/out comparison. */ |
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itkGetMacro( Epsilon, double); |
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itkSetMacro( Epsilon, double); |
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/** Set/Get direction along the gradient to search. */ |
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itkGetMacro( Polarity, bool); |
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itkSetMacro( Polarity, bool); |
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protected: |
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ConicShellInteriorExteriorSpatialFunction(); |
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virtual ~ConicShellInteriorExteriorSpatialFunction(); |
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void PrintSelf(std::ostream& os, Indent indent) const; |
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private: |
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ConicShellInteriorExteriorSpatialFunction(const Self&); //purposely not implemented |
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void operator=(const Self&); //purposely not implemented |
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/** The origin of the conic shell */ |
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InputType m_Origin; |
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/** The gradient at the origin */ |
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GradientType m_OriginGradient; |
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double m_DistanceMin; |
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double m_DistanceMax; |
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double m_Epsilon; |
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bool m_Polarity; |
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}; |
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} // end namespace itk |
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#ifndef ITK_MANUAL_INSTANTIATION |
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#include "itkConicShellInteriorExteriorSpatialFunction.txx" |
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#endif |
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#endif |
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