text: /*=========================================================================
   *
   *  Copyright Insight Software Consortium
   *
   *  Licensed under the Apache License, Version 2.0 (the "License");
   *  you may not use this file except in compliance with the License.
   *  You may obtain a copy of the License at
   *
   *         http://www.apache.org/licenses/LICENSE-2.0.txt
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   *
   *=========================================================================*/
  #ifndef __itkFiniteCylinderSpatialFunction_h
  #define __itkFiniteCylinderSpatialFunction_h
  
  #include "itkInteriorExteriorSpatialFunction.h"
  #include "itkConceptChecking.h"
  
  namespace itk
  {
  /**
   * \class FiniteCylinderSpatialFunction
   * \brief Function implementation of an finite cylinder
   *
   * Implements a function that returns 1 for points inside or on the surface
   * of a cylinder and 0 for points outside the cylinder.
   *
   * This function only works in 3 Dimensions.
   *
   * \ingroup ITKCommon
   */
  
  template< unsigned int VDimension = 3,
            typename TInput = Point< double, VDimension > >
  class FiniteCylinderSpatialFunction:
    public InteriorExteriorSpatialFunction< VDimension, TInput >
  {
  public:
  
    /** Standard class typedefs. */
    typedef FiniteCylinderSpatialFunction                         Self;
    typedef InteriorExteriorSpatialFunction< VDimension, TInput > Superclass;
    typedef SmartPointer< Self >                                  Pointer;
    typedef SmartPointer< const Self >                            ConstPointer;
  
    /** Run-time type information (and related methods). */
    itkTypeMacro(FiniteCylinderSpatialFunction, InteriorExteriorSpatialFunction);
  
    /** Method for creation through the object factory. */
    itkNewMacro(Self);
  
    /** Input type for the function */
    typedef typename Superclass::InputType InputType;
  
    /** Output type for the function */
    typedef typename Superclass::OutputType OutputType;
  
    /** Set/Get and set the center of the cylinder. */
    itkGetConstMacro(Center, InputType);
    itkSetMacro(Center, InputType);
  
    /** Get and set the medial axis length of the cylinder. */
    itkGetConstMacro(AxisLength, double);
    itkSetMacro(AxisLength, double);
  
    /** Get and set the radius length of the cylinder. */
    itkGetConstMacro(Radius, double);
    itkSetMacro(Radius, double);
  
    /** Set the orientation vectors (must be orthogonal) of the ellipsoid axes.
     * Must be normalized!!!!! */
    itkGetConstMacro(Orientation, InputType);
    virtual void SetOrientation(const InputType _Orientation);
  
    /** Evaluates the function at a given position. */
    OutputType Evaluate(const InputType & position) const;
  
  #ifdef ITK_USE_CONCEPT_CHECKING
    /** Begin concept checking */
    itkConceptMacro( DimensionShouldBe3,
                     ( Concept::SameDimension< VDimension, 3u > ) );
    itkConceptMacro( PointDimensionShouldBe3,
                     ( Concept::SameDimension< InputType::Dimension, 3u > ) );
    /** End concept checking */
  #endif
  
  protected:
  
    FiniteCylinderSpatialFunction();
    virtual ~FiniteCylinderSpatialFunction();
  
    void PrintSelf(std::ostream & os, Indent indent) const;
  
  private:
  
    FiniteCylinderSpatialFunction(const Self &); //purposely not implemented
    void operator=(const Self &);                //purposely not implemented
  
    /** The center of the cylinder. */
    InputType m_Center;
  
    /** The medial axis length of the cylinder. */
    double m_AxisLength;
  
    /** The radius length of the cylinder. */
    double m_Radius;
  
    /** The orientation vectors (must be orthogonal) of the ellipsoid axes. */
    InputType m_Orientation;
    InputType m_NormalizedOrientation;
  };
  } // end namespace itk
  
  #ifndef ITK_MANUAL_INSTANTIATION
  #include "itkFiniteCylinderSpatialFunction.hxx"
  #endif
  
  #endif
  