/*=========================================================================
 *
 *  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 ITK_TEMPLATE_EXPORT FiniteCylinderSpatialFunction:
  public InteriorExteriorSpatialFunction< VDimension, TInput >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(FiniteCylinderSpatialFunction);

  /** Standard class type aliases. */
  using Self = FiniteCylinderSpatialFunction;
  using Superclass = InteriorExteriorSpatialFunction< VDimension, TInput >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  /** Run-time type information (and related methods). */
  itkTypeMacro(FiniteCylinderSpatialFunction, InteriorExteriorSpatialFunction);

  /** Method for creation through the object factory. */
  itkNewMacro(Self);

  /** Input type for the function */
  using InputType = typename Superclass::InputType;

  /** Output type for the function */
  using OutputType = typename Superclass::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 override;

#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();
  ~FiniteCylinderSpatialFunction() override = default;

  void PrintSelf(std::ostream & os, Indent indent) const override;

private:

  /** 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
