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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkSymmetricEllipsoidInteriorExteriorSpatialFunction.h.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:48 $ |
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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 __itkSymmetricEllipsoidInteriorExteriorSpatialFunction_h |
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#define __itkSymmetricEllipsoidInteriorExteriorSpatialFunction_h |
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#include "itkInteriorExteriorSpatialFunction.h" |
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namespace itk |
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{ |
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/** \class EllipsoidSpatialFunction |
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* \brief Function implementation of an ellipsoid |
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* |
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* Similar to itkEllipsoidInteriorExteriorSpatialFunction in that it |
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* implements a function that returns 1 for points inside or on the surface |
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* of a ellipsoid and 0 for points outside the ellipsoid. However, this |
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* ellipsoid is defined by a single orientation vector and deals |
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* only with symmetric ellipsoids. An n-dimensional symmetric ellipsoid |
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* is one which has m axes of equal length and (n - m) unique axes lengths. |
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* Specifically, this class deals with the case where (n - m) = 1 and |
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* the ellipsoid's major axis is oriented along a singles orientation vector. |
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*/ |
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template <unsigned int VDimension = 3, |
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typename TInput = Point<double, VDimension> > |
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class ITK_EXPORT SymmetricEllipsoidInteriorExteriorSpatialFunction: |
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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 SymmetricEllipsoidInteriorExteriorSpatialFunction 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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typedef Vector<double,VDimension> VectorType; |
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/** Method for creation through the object factory. */ |
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itkNewMacro(Self); |
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/** Run-time information. */ |
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itkTypeMacro(SymmetricEllipsoidInteriorExteriorSpatialFunction,InteriorExteriorSpatialFunction); |
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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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/** Evaluates the function at a given position. */ |
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OutputType Evaluate(const InputType& position) const; |
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/** Get and set the center of the ellipsoid. */ |
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itkGetMacro(Center, InputType); |
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itkSetMacro(Center, InputType); |
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/** Set the orientation vector of the ellipsoid's unique axis and axes lengths. |
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* Must be normalized!!!!! */ |
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void SetOrientation(VectorType orientation, double uniqueAxis, double symmetricAxes); |
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protected: |
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SymmetricEllipsoidInteriorExteriorSpatialFunction(); |
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virtual ~SymmetricEllipsoidInteriorExteriorSpatialFunction(); |
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void PrintSelf(std::ostream& os, Indent indent) const; |
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private: |
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SymmetricEllipsoidInteriorExteriorSpatialFunction(const Self&); //purposely not implemented |
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void operator=(const Self&); //purposely not implemented |
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/** The center of the ellipsoid. */ |
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InputType m_Center; |
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/** The unique axis length of the ellipsoid. */ |
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double m_UniqueAxis; |
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/** The symmetric axes lengths of the ellipsoid. */ |
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double m_SymmetricAxes; |
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/** The orientation vector of the ellipsoid's unique axis. */ |
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Vector<double, VDimension> m_Orientation; |
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/** The vector ratio. */ |
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double m_VectorRatio; |
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}; |
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} // end namespace itk |
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#ifndef ITK_MANUAL_INSTANTIATION |
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#include "itkSymmetricEllipsoidInteriorExteriorSpatialFunction.txx" |
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#endif |
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#endif |
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