otb::mpl Namespace Reference

Namespaces
	internals

Classes
struct	is_array
struct	is_array< itk::VariableLengthVector< T > >
struct	is_array< itk::VariableLengthVectorExpression< TExpr1, TExpr2, TBinaryOp > >

Functions
template<typename PixelType >
unsigned int	GetNumberOfComponents (PixelType const &pix)

Variables
template<typename T >
constexpr bool	is_array_v = is_array<T>::value

Function Documentation

GetNumberOfComponents()

template<typename PixelType >

unsigned int otb::mpl::GetNumberOfComponents ( PixelType const &  pix )

inline

Returns the number of components in the pixel parameter. While itk::DefaultConvertPixelTraits and otb::DefaultConvertPixelTraits already exist, they don't handle correctly:

• std::complex<>, as there is no itk::DefaultConvertPixelTraits<complex<>>::GetNumberOfComponents(pix)
• nor itk::VariableLengthVector<>, as it copies the VLV, which is an expensive operation.

Template Parameters

PixelType

automatically deduced pixel type

Parameters

[in]

pix

pixel parameter

Returns

The number of components in the pixel.

Exceptions

None

Definition at line 215 of file otbArrayTraits.h.

References otb::mpl::internals::NumberOfComponents< PixelType >::For().

Referenced by otb::GridResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecision >::BeforeThreadedGenerateData(), otb::GridResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecision >::CastPixelWithBoundsChecking(), otb::ConvertPixelBuffer< InputPixelType, OutputPixelType, OutputConvertTraits >::Convert(), otb::DifferenceImageFilter< TInputImage, TOutputImage >::DifferenceImageFilter(), otb::mpl::internals::NumberOfComponents< PixelType >::For(), otb::ImageFileReader< TOutputImage, ConvertPixelTraits >::GenerateData(), otb::ImageFileReader< TOutputImage, ConvertPixelTraits >::GenerateOutputInformation(), otb::PixelRange_t< TPixel >::shallow_size(), and otb::internals::PixelComponentIterator< TPixel, ConstOrMutable, typename std::enable_if_t< mpl::is_array_v< std::decay_t< TPixel > > > >::size().