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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 itkMeshConvertPixelTraits_h
#define itkMeshConvertPixelTraits_h
#include "itkArray.h"
#include "itkMatrix.h"
#include "itkOffset.h"
#include "itkCovariantVector.h"
#include "itkVariableLengthVector.h"
#include "itkVector.h"
#include "itkPoint.h"
namespace itk
{
/**
* \class MeshConvertPixelTraits
* \brief Traits class used to by ConvertPixels to convert blocks of pixels.
*
* TOutputPixelType is the destination type. The input type is inferred
* by the templated static function Convert.
*
* This implementation, does a simple assignment operator, so if you are
* going from from a higher bit representation to a lower bit one (int to
* char), you may want to specialize and add some sort of transfer function.
* \ingroup ITKIOMeshBase
*/
template <typename PixelType>
class MeshConvertPixelTraits
{
public:
/** Determine the pixel data type. */
using ComponentType = typename PixelType::ComponentType;
/** Return the number of components per pixel. */
static unsigned int
GetNumberOfComponents()
{
return PixelType::GetNumberOfComponents();
}
static unsigned int
GetNumberOfComponents(const PixelType &)
{
return PixelType::GetNumberOfComponents();
}
/** Return the nth component of the pixel. */
static ComponentType
GetNthComponent(int c, const PixelType & pixel)
{
return pixel.GetNthComponent(c);
}
/** Set the nth component of the pixel. */
static void
SetNthComponent(int c, PixelType & pixel, const ComponentType & v)
{
pixel.SetNthComponent(c, v);
}
/** Return a single scalar value from this pixel. */
static ComponentType
GetScalarValue(const PixelType & pixel)
{
return pixel.GetScalarValue();
}
};
#define ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(type) \
template <> \
class MeshConvertPixelTraits<type> \
{ \
public: \
using ComponentType = type; \
static unsigned int \
GetNumberOfComponents() \
{ \
return 1; \
} \
static unsigned int \
GetNumberOfComponents(const type & itkNotUsed(pixel)) \
{ \
return 1; \
} \
static ComponentType \
GetNthComponent(int itkNotUsed(c), const type & pixel) \
{ \
return pixel; \
} \
static void \
SetNthComponent(int, type & pixel, const ComponentType & v) \
{ \
pixel = v; \
} \
static type \
GetScalarValue(const type & pixel) \
{ \
return pixel; \
} \
}
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(char);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(signed char);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(unsigned char);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(short);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(unsigned short);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(int);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(unsigned int);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(long);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(unsigned long);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(long long);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(unsigned long long);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(bool);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(float);
ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL(double);
#undef ITK_DEFAULTCONVERTTRAITS_NATIVE_SPECIAL
//
// Default traits for the Offset<> pixel type
//
#define ITK_MESH_DEFAULTCONVERTTRAITS_OFFSET_TYPE(dimension) \
template <> \
class MeshConvertPixelTraits<Offset<dimension>> \
{ \
public: \
using TargetType = Offset<dimension>; \
using ComponentType = TargetType::OffsetValueType; \
static unsigned int \
GetNumberOfComponents() \
{ \
return dimension; \
} \
static unsigned int \
GetNumberOfComponents(const TargetType & itkNotUsed(pixel)) \
{ \
return dimension; \
} \
static ComponentType \
GetNthComponent(int c, const TargetType & pixel) \
{ \
return pixel[c]; \
} \
static void \
SetNthComponent(int i, TargetType & pixel, const ComponentType & v) \
{ \
pixel[i] = v; \
} \
static ComponentType \
GetScalarValue(const TargetType & pixel) \
{ \
return pixel[0]; \
} \
};
// Define traits for Offset<> from dimensions 1 to 5
ITK_MESH_DEFAULTCONVERTTRAITS_OFFSET_TYPE(1)
ITK_MESH_DEFAULTCONVERTTRAITS_OFFSET_TYPE(2)
ITK_MESH_DEFAULTCONVERTTRAITS_OFFSET_TYPE(3)
ITK_MESH_DEFAULTCONVERTTRAITS_OFFSET_TYPE(4)
ITK_MESH_DEFAULTCONVERTTRAITS_OFFSET_TYPE(5)
//
// Default traits for the pixel types deriving from FixedArray<>
//
#define ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE(type, componenttype, dimension) \
template <> \
class MeshConvertPixelTraits<type<componenttype, dimension>> \
{ \
public: \
using TargetType = type<componenttype, dimension>; \
using ComponentType = componenttype; \
static unsigned int \
GetNumberOfComponents() \
{ \
return dimension; \
} \
static unsigned int \
GetNumberOfComponents(const TargetType & itkNotUsed(pixel)) \
{ \
return dimension; \
} \
static ComponentType \
GetNthComponent(int c, const TargetType & pixel) \
{ \
return pixel[c]; \
} \
static void \
SetNthComponent(int i, TargetType & pixel, const ComponentType & v) \
{ \
pixel[i] = v; \
} \
static ComponentType \
GetScalarValue(const TargetType & pixel) \
{ \
return pixel[0]; \
} \
};
//
//
// Define traits for Classed deriving from FixedArray from dimensions 1 to 6
// These classes include: Vector, CovariantVector and Point.
//
//
#define ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, Type) \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE(ArrayType, Type, 1) \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE(ArrayType, Type, 2) \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE(ArrayType, Type, 3) \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE(ArrayType, Type, 4) \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE(ArrayType, Type, 5) \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE(ArrayType, Type, 6)
#define ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_TYPES_MACRO(ArrayType) \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, char); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, signed char); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, unsigned char); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, short); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, unsigned short); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, int); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, unsigned int); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, long); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, unsigned long); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, long long); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, unsigned long long); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, float); \
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_MACRO(ArrayType, double);
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_TYPES_MACRO(Vector);
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_TYPES_MACRO(CovariantVector);
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_TYPES_MACRO(Point);
ITK_MESH_DEFAULTCONVERTTRAITS_FIXEDARRAY_TYPE_ALL_TYPES_MACRO(FixedArray);
//
// End of Traits for the classes deriving from FixedArray.
//
//
//
// Default traits for the pixel types deriving from Matrix<>
//
#define ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE(type, componenttype, rows, cols) \
template <> \
class MeshConvertPixelTraits<type<componenttype, rows, cols>> \
{ \
public: \
using TargetType = type<componenttype, rows, cols>; \
using ComponentType = componenttype; \
static unsigned int \
GetNumberOfComponents() \
{ \
return rows * cols; \
} \
static unsigned int \
GetNumberOfComponents(const TargetType & itkNotUsed(pixel)) \
{ \
return rows * cols; \
} \
static ComponentType \
GetNthComponent(int c, const TargetType & pixel) \
{ \
const unsigned int row = c / cols; \
const unsigned int col = c % cols; \
return pixel[row][col]; \
} \
static void \
SetNthComponent(int i, TargetType & pixel, const ComponentType & v) \
{ \
const unsigned int row = i / cols; \
const unsigned int col = i % cols; \
pixel[row][col] = v; \
} \
static ComponentType \
GetScalarValue(const TargetType & pixel) \
{ \
return pixel[0][0]; \
} \
};
//
//
// Define traits for Classed deriving from Matrix from dimensions 1 to 6
//
//
#define ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, Type) \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE(ArrayType, Type, 1, 1) \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE(ArrayType, Type, 2, 2) \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE(ArrayType, Type, 3, 3) \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE(ArrayType, Type, 4, 4) \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE(ArrayType, Type, 5, 5) \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE(ArrayType, Type, 6, 6)
#define ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_TYPES_MACRO(ArrayType) \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, char); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, signed char); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, unsigned char); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, short); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, unsigned short); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, int); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, unsigned int); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, long); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, unsigned long); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, long long); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, unsigned long long); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, float); \
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_MACRO(ArrayType, double);
//
// Add here other classes that derive from Matrix or that have the same API
//
ITK_MESH_DEFAULTCONVERTTRAITS_MATRIX_TYPE_ALL_TYPES_MACRO(Matrix);
//
// End of Traits for the classes deriving from Matrix.
//
//
//
// Default traits for the pixel types deriving from std::complex<>
//
#define ITK_MESH_DEFAULTCONVERTTRAITS_COMPLEX_TYPE(componenttype) \
template <> \
class MeshConvertPixelTraits<std::complex<componenttype>> \
{ \
public: \
using TargetType = std::complex<componenttype>; \
using ComponentType = componenttype; \
static unsigned int \
GetNumberOfComponents() \
{ \
return 2; \
} \
static unsigned int \
GetNumberOfComponents(const TargetType & itkNotUsed(pixel)) \
{ \
return 2; \
} \
static ComponentType \
GetNthComponent(int i, TargetType & pixel) \
{ \
if (i == 0) \
{ \
return pixel.imag(); \
} \
else \
{ \
return pixel.real(); \
} \
} \
static void \
SetNthComponent(int i, TargetType & pixel, const ComponentType & v) \
{ \
if (i == 0) \
{ \
pixel = TargetType(v, pixel.imag()); \
} \
else \
{ \
pixel = TargetType(pixel.real(), v); \
} \
} \
static ComponentType \
GetScalarValue(const TargetType & pixel) \
{ \
return std::norm(pixel); \
} \
};
ITK_MESH_DEFAULTCONVERTTRAITS_COMPLEX_TYPE(float);
ITK_MESH_DEFAULTCONVERTTRAITS_COMPLEX_TYPE(double);
#define ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(type, componenttype) \
template <> \
class MeshConvertPixelTraits<type<componenttype>> \
{ \
public: \
using TargetType = type<componenttype>; \
using ComponentType = componenttype; \
static unsigned int \
GetNumberOfComponents() \
{ \
return 0; \
} \
static unsigned int \
GetNumberOfComponents(const TargetType & pixel) \
{ \
return pixel.Size(); \
} \
static ComponentType \
GetNthComponent(int c, const TargetType & pixel) \
{ \
return pixel[c]; \
} \
static void \
SetNthComponent(int i, TargetType & pixel, const ComponentType & v) \
{ \
pixel[i] = v; \
} \
static ComponentType \
GetScalarValue(const TargetType & pixel) \
{ \
return pixel[0]; \
} \
};
#define ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE_ALL_TYPES_MACRO(ArrayType) \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, char); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, signed char); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, unsigned char); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, short); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, unsigned short); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, int); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, unsigned int); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, long); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, unsigned long); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, long long); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, unsigned long long); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, float); \
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE(ArrayType, double);
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE_ALL_TYPES_MACRO(Array);
ITK_MESH_DEFAULTCONVERTTRAITS_ARRAY_TYPE_ALL_TYPES_MACRO(VariableLengthVector);
//
// End of Traits for the classes deriving from std::complex.
//
//
} // end namespace itk
#endif
|
