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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 itkImageSpatialObject_h
#define itkImageSpatialObject_h
#include "itkImage.h"
#include "itkContinuousIndex.h"
#include "itkSpatialObject.h"
#include "itkNearestNeighborInterpolateImageFunction.h"
namespace itk
{
/**
* \class ImageSpatialObject
* \brief Implementation of an image as spatial object.
*
* This class combines functionalities from a spatial object,
* and an image.
*
* \sa SpatialObject CompositeSpatialObject
* \ingroup ITKSpatialObjects
*/
template <unsigned int TDimension = 3, typename TPixelType = unsigned char>
class ITK_TEMPLATE_EXPORT ImageSpatialObject : public SpatialObject<TDimension>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(ImageSpatialObject);
using ScalarType = double;
using Self = ImageSpatialObject<TDimension, TPixelType>;
using Superclass = SpatialObject<TDimension>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
using ContinuousIndexType = ContinuousIndex<double, TDimension>;
using PixelType = TPixelType;
using ImageType = Image<PixelType, TDimension>;
using ImagePointer = typename ImageType::ConstPointer;
using IndexType = typename ImageType::IndexType;
using typename Superclass::PointType;
using InterpolatorType = InterpolateImageFunction<ImageType>;
using NNInterpolatorType = NearestNeighborInterpolateImageFunction<ImageType>;
static constexpr unsigned int ObjectDimension = TDimension;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(ImageSpatialObject);
/** Reset the spatial object to its initial condition, yet preserves
* Id, Parent, and Child information */
void
Clear() override;
/** Set the image. */
void
SetImage(const ImageType * image);
/** Get a pointer to the image currently attached to the object. */
const ImageType *
GetImage() const;
/** Returns true if the point is inside, false otherwise. */
bool
IsInsideInObjectSpace(const PointType & point) const override;
/* Avoid hiding the overload that supports depth and name arguments */
using Superclass::IsInsideInObjectSpace;
/** Returns the value of the image at the requested point.
*
* Returns true if that value is valid.
*
* The value returned is always of type double; for RGB Images the value returned is the value of the first channel.
*/
bool
ValueAtInObjectSpace(const PointType & point,
double & value,
unsigned int depth = 0,
const std::string & name = "") const override;
/** Returns the latest modified time of the object and its component. */
ModifiedTimeType
GetMTime() const override;
/** Set the slice position */
itkSetMacro(SliceNumber, IndexType);
void
SetSliceNumber(unsigned int dimension, int position);
/** Get the slice position */
itkGetConstMacro(SliceNumber, IndexType);
int
GetSliceNumber(unsigned int dimension)
{
return m_SliceNumber[dimension];
}
#if !defined(ITK_LEGACY_REMOVE)
itkLegacyMacro(const char * GetPixelTypeName()) { return m_PixelType.c_str(); }
#endif
/** Set/Get the interpolator. */
void
SetInterpolator(InterpolatorType * interpolator);
itkGetConstMacro(Interpolator, InterpolatorType *);
/** Updates the regions of this spatial object in accordance with its current image, and calls its Superclass. */
void
Update() override;
protected:
/** Compute the boundaries of the image spatial object. */
void
ComputeMyBoundingBox() override;
ImageSpatialObject();
~ImageSpatialObject() override;
void
PrintSelf(std::ostream & os, Indent indent) const override;
typename LightObject::Pointer
InternalClone() const override;
private:
ImagePointer m_Image{};
IndexType m_SliceNumber{};
#if !defined(ITK_LEGACY_REMOVE)
std::string m_PixelType{};
#endif
typename InterpolatorType::Pointer m_Interpolator{};
/** Updates the regions of this spatial object in accordance with its current image. */
void
UpdateImageRegions();
#if !defined(ITK_LEGACY_REMOVE)
template <typename T>
void
SetPixelTypeName(const T *)
{
itkWarningMacro("itk::ImageSpatialObject() : PixelType not recognized");
}
void
SetPixelTypeName(const short *)
{
m_PixelType = "short";
}
void
SetPixelTypeName(const unsigned char *)
{
m_PixelType = "unsigned char";
}
void
SetPixelTypeName(const unsigned short *)
{
m_PixelType = "unsigned short";
}
void
SetPixelTypeName(const float *)
{
m_PixelType = "float";
}
void
SetPixelTypeName(const double *)
{
m_PixelType = "double";
}
#endif
};
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkImageSpatialObject.hxx"
#endif
#endif // itkImageSpatialObject_h
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