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 itkPointSetToImageFilter_h
  #define itkPointSetToImageFilter_h
  
  #include "itkImageSource.h"
  #include "itkConceptChecking.h"
  
  namespace itk
  {
  /** \class PointSetToImageFilter
   * \brief Base class for filters that take a PointSet
   *        as input and produce an image as output.
   *  By default, if the user does not specify the size of the output image,
   *  the maximum size of the point-set's bounding box is used.
   * \ingroup ITKCommon
   */
  template <typename TInputPointSet, typename TOutputImage>
  class ITK_TEMPLATE_EXPORT PointSetToImageFilter : public ImageSource<TOutputImage>
  {
  public:
    ITK_DISALLOW_COPY_AND_ASSIGN(PointSetToImageFilter);
  
    /** Standard class type aliases. */
    using Self = PointSetToImageFilter;
    using Superclass = ImageSource<TOutputImage>;
    using Pointer = SmartPointer<Self>;
    using ConstPointer = SmartPointer<const Self>;
    using SizeType = typename TOutputImage::SizeType;
    using OutputImageType = TOutputImage;
    using OutputImagePointer = typename OutputImageType::Pointer;
    using ValueType = typename OutputImageType::ValueType;
  
    /** Method for creation through the object factory. */
    itkNewMacro(Self);
  
    /** Run-time type information (and related methods). */
    itkTypeMacro(PointSetToImageFilter, ImageSource);
  
    /** Superclass type alias. */
    using OutputImageRegionType = typename Superclass::OutputImageRegionType;
  
    /** Some convenient type alias. */
    using InputPointSetType = TInputPointSet;
    using InputPointSetPointer = typename InputPointSetType::Pointer;
    using InputPointSetConstPointer = typename InputPointSetType::ConstPointer;
  
    /** Dimension constants */
    static constexpr unsigned int InputPointSetDimension = InputPointSetType::PointDimension;
    static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;
  
    /** Image spacing and origin type alias */
    using SpacingType = typename TOutputImage::SpacingType;
    using DirectionType = typename TOutputImage::DirectionType;
    using PointType = typename TOutputImage::PointType;
  
    /** Set/Get the input point-set of this process object.  */
    using Superclass::SetInput;
    virtual void
    SetInput(const InputPointSetType * pointset);
  
    virtual void
    SetInput(unsigned int, const InputPointSetType * pointset);
  
    const InputPointSetType *
    GetInput();
  
    const InputPointSetType *
    GetInput(unsigned int idx);
  
    /** Set the spacing (size of a pixel) of the image. The
     * spacing is the geometric distance between image samples.
     * It is stored internally as double, but may be set from
     * float. \sa GetSpacing() */
    itkSetMacro(Spacing, SpacingType);
    virtual void
    SetSpacing(const double * spacing);
  
    virtual void
    SetSpacing(const float * spacing);
  
    /** Get the spacing (size of a pixel) of the image. The
     * spacing is the geometric distance between image samples.
     * The value returned is a pointer to a double array.
     * For ImageBase and Image, the default data spacing is unity. */
    itkGetConstReferenceMacro(Spacing, SpacingType);
  
    /** Get/Set the direction of the image. The
     * direction is the relationship of the grid to physical
     * coordinates. */
    itkSetMacro(Direction, DirectionType);
    itkGetConstReferenceMacro(Direction, DirectionType);
  
    /** Set the origin of the image. The origin is the geometric
     * coordinates of the image origin.  It is stored internally
     * as double but may be set from float.
     * \sa GetOrigin() */
    itkSetMacro(Origin, PointType);
    virtual void
    SetOrigin(const double * origin);
  
    virtual void
    SetOrigin(const float * origin);
  
    /** Get the origin of the image. The origin is the geometric
     * coordinates of the index (0,0).  The value returned is a pointer
     * to a double array.  For ImageBase and Image, the default origin is
     * 0. */
    itkGetConstReferenceMacro(Origin, PointType);
  
    /** Set/Get the value for pixels in the point-set.
     * By default, this filter will return an image
     * that contains values from the point-set specified as input.
     * If this "inside" value is changed to a non-null value,
     * the output produced by this filter will be a mask with inside/outside values
     * specified by the user. */
    itkSetMacro(InsideValue, ValueType);
    itkGetConstMacro(InsideValue, ValueType);
  
    /** Set/Get the value for pixels outside the point-set.
     * By default, this filter will return an image
     * that contains values from the point specified as input.
     * If this "outside" value is changed to a non-null value,
     * the output produced by this filter will be a mask with inside/outside values
     * specified by the user. */
    itkSetMacro(OutsideValue, ValueType);
    itkGetConstMacro(OutsideValue, ValueType);
  
    /** Set/Get Size */
    itkSetMacro(Size, SizeType);
    itkGetConstMacro(Size, SizeType);
  
  protected:
    PointSetToImageFilter();
    ~PointSetToImageFilter() override = default;
  
    void
    GenerateOutputInformation() override
    {} // do nothing
    void
    GenerateData() override;
  
    SizeType m_Size;
  
    PointType m_Origin;
  
    SpacingType m_Spacing;
  
    DirectionType m_Direction;
  
    ValueType m_InsideValue;
    ValueType m_OutsideValue;
  
    void
    PrintSelf(std::ostream & os, Indent indent) const override;
  };
  } // end namespace itk
  
  #ifndef ITK_MANUAL_INSTANTIATION
  #  include "itkPointSetToImageFilter.hxx"
  #endif
  
  #endif
  