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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkSymmetricEllipsoidInteriorExteriorSpatialFunction.h,v $
Language: C++
Date: $Date: 2007-01-30 23:39:53 $
Version: $Revision: 1.15 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkSymmetricEllipsoidInteriorExteriorSpatialFunction_h
#define __itkSymmetricEllipsoidInteriorExteriorSpatialFunction_h
#include "itkInteriorExteriorSpatialFunction.h"
namespace itk
{
/** \class EllipsoidSpatialFunction
* \brief Function implementation of an ellipsoid
*
* Similar to itkEllipsoidInteriorExteriorSpatialFunction in that it
* implements a function that returns 1 for points inside or on the surface
* of a ellipsoid and 0 for points outside the ellipsoid. However, this
* ellipsoid is defined by a single orientation vector and deals
* only with symmetric ellipsoids. An n-dimensional symmetric ellipsoid
* is one which has m axes of equal length and (n - m) unique axes lengths.
* Specifically, this class deals with the case where (n - m) = 1 and
* the ellipsoid's major axis is oriented along a singles orientation vector.
*/
template <unsigned int VDimension = 3,
typename TInput = Point<double, VDimension> >
class ITK_EXPORT SymmetricEllipsoidInteriorExteriorSpatialFunction:
public InteriorExteriorSpatialFunction<VDimension, TInput>
{
public:
/** Standard class typedefs. */
typedef SymmetricEllipsoidInteriorExteriorSpatialFunction Self;
typedef InteriorExteriorSpatialFunction<VDimension> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef Vector<double,VDimension> VectorType;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time information. */
itkTypeMacro(SymmetricEllipsoidInteriorExteriorSpatialFunction,InteriorExteriorSpatialFunction);
/** Input type for the function. */
typedef typename Superclass::InputType InputType;
/** Output type for the function. */
typedef typename Superclass::OutputType OutputType;
/** Evaluates the function at a given position. */
OutputType Evaluate(const InputType& position) const;
/** Get and set the center of the ellipsoid. */
itkGetMacro(Center, InputType);
itkSetMacro(Center, InputType);
/** Set the orientation vector of the ellipsoid's unique axis and axes lengths.
* Must be normalized!!!!! */
void SetOrientation(VectorType orientation, double uniqueAxis, double symmetricAxes);
protected:
SymmetricEllipsoidInteriorExteriorSpatialFunction();
virtual ~SymmetricEllipsoidInteriorExteriorSpatialFunction();
void PrintSelf(std::ostream& os, Indent indent) const;
private:
SymmetricEllipsoidInteriorExteriorSpatialFunction(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
/** The center of the ellipsoid. */
InputType m_Center;
/** The unique axis length of the ellipsoid. */
double m_UniqueAxis;
/** The symmetric axes lengths of the ellipsoid. */
double m_SymmetricAxes;
/** The orientation vector of the ellipsoid's unique axis. */
Vector<double, VDimension> m_Orientation;
/** The vector ratio. */
double m_VectorRatio;
};
} // end namespace itk
// Define instantiation macro for this template.
#define ITK_TEMPLATE_SymmetricEllipsoidInteriorExteriorSpatialFunction(_, EXPORT, x, y) namespace itk { \
_(2(class EXPORT SymmetricEllipsoidInteriorExteriorSpatialFunction< ITK_TEMPLATE_2 x >)) \
namespace Templates { typedef SymmetricEllipsoidInteriorExteriorSpatialFunction< ITK_TEMPLATE_2 x > \
SymmetricEllipsoidInteriorExteriorSpatialFunction##y; } \
}
#if ITK_TEMPLATE_EXPLICIT
# include "Templates/itkSymmetricEllipsoidInteriorExteriorSpatialFunction+-.h"
#endif
#if ITK_TEMPLATE_TXX
# include "itkSymmetricEllipsoidInteriorExteriorSpatialFunction.txx"
#endif
#endif
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