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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkShapeSignedDistanceFunction.h.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:47 $ |
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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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DEF |
#ifndef _itkShapeSignedDistanceFunction_h |
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DEF |
#define _itkShapeSignedDistanceFunction_h |
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#include "itkSpatialFunction.h" |
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#include "itkArray.h" |
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namespace itk |
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{ |
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/** \class ShapeSignedDistanceFunction |
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* \brief Base class for functions which evaluates the signed distance |
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* from a shape. |
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* |
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* ShapeSignedDistanceFunction is the base class for functions which |
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* returns the signed distance from a shape at an arbitrary point. |
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* A shape assumed to be defined by a set of shape and pose parameters. |
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* |
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* Note that Initialize() must be called before use. |
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* This allows the class an opportunity to validate any inputs. |
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* |
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* This class is templated over the coordinate representation type |
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* (e.g. float or double) and the space dimension. |
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* |
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* ShapeSignedDistanceFunction is used to encapsulate the shape prior |
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* in ShapePriorSegmentationLevelSetFunctions. |
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* |
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* \sa SpatialFunction |
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* \sa ShapePriorSegmentationLevelSetFunction |
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* |
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* \ingroup ImageFunctions |
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* |
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* */ |
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template <typename TCoordRep, unsigned int VSpaceDimension> |
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class ITK_EXPORT ShapeSignedDistanceFunction : |
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LEN,IND |
**public SpatialFunction< double, VSpaceDimension, Point<TCoordRep,VSpaceDimension> > |
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{ |
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public: |
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/** Standard class typedefs. */ |
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typedef ShapeSignedDistanceFunction Self; |
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typedef SpatialFunction< double, VSpaceDimension, |
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Point<TCoordRep,VSpaceDimension> > Superclass; |
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TDA |
typedef SmartPointer<Self> Pointer; |
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TDA |
typedef SmartPointer<const Self> ConstPointer; |
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/** Run-time type information (and related methods). */ |
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itkTypeMacro(ShapeSignedDistanceFunction, SpatialFunction); |
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/** OutputType typedef support. */ |
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typedef typename Superclass::OutputType OutputType; |
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/** InputType typedef support. */ |
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typedef typename Superclass::InputType InputType; |
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/** Dimension underlying input image. */ |
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itkStaticConstMacro(SpaceDimension, unsigned int, VSpaceDimension); |
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/** CoordRep typedef support. */ |
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typedef TCoordRep CoordRepType; |
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/** Point typedef support. */ |
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typedef InputType PointType; |
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/** Type of the shape parameters. */ |
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typedef Array<double> ParametersType; |
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/** A shape is defined by a set of shape parameters. */ |
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virtual void SetParameters( const ParametersType & ) = 0; |
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virtual ParametersType& GetParameters(void) |
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{ return m_Parameters; } |
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virtual unsigned int GetNumberOfShapeParameters(void) const = 0; |
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virtual unsigned int GetNumberOfPoseParameters(void) const = 0; |
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virtual unsigned int GetNumberOfParameters(void) const |
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{ return this->GetNumberOfShapeParameters() + this->GetNumberOfPoseParameters(); } |
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/** Evaluate the signed distance from a shape at a given position. */ |
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virtual OutputType Evaluate( const PointType& point ) const = 0; |
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/** Initialize must be called before the first call of SetParameters() or |
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***Evaluate() to allow the class to validate any inputs. */ |
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virtual void Initialize() throw ( ExceptionObject ) {}; |
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protected: |
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ShapeSignedDistanceFunction() {}; |
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~ShapeSignedDistanceFunction(){}; |
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void PrintSelf(std::ostream& os, Indent indent) const |
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{ |
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Superclass::PrintSelf( os, indent ); |
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//FIX os << indent << "Parameters: " << m_Parameters << std::endl; |
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} |
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ParametersType m_Parameters; |
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private: |
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ShapeSignedDistanceFunction( const Self& ); //purposely not implemented |
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void operator=( const Self& ); //purposely not implemented |
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}; |
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} // namespace itk |
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#endif |
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