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> Unreal Engine API Reference > Runtime > SignalProcessing > DSP > FContiguousSparse2DKernelTransform

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FContiguousSparse2DKernelTransform

[FContiguousSparse2DKernelTransform](API\Runtime\SignalProcessing\DSP\FContiguousSparse2DKernelTransfo-)

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References

Module	SignalProcessing
Header	/Engine/Source/Runtime/SignalProcessing/Public/DSP/FloatArrayMath.h
Include	#include "DSP/FloatArrayMath.h"

Syntax

class FContiguousSparse2DKernelTransform

Remarks

FContiguousSparse2DKernelTransform

FContiguousSparse2DKernelTransform applies a matrix transformation to an input array. [OutArray] = [[Kernal]][InView]

It provides some optimization by exploit the contiguous and sparse qualities of the kernel rows, which allows it to skip multiplications with the number zero.

It works with non-sparse and non-contiguous kernels as well, but will be more computationally expensive than a naive implementation. Also, only takes advantage of sparse contiguous rows, not columns.

Constructors

	Name	Description
	FContiguousSparse2DKernelTransform ( const FContiguousSparse2DKernelTran... )
	FContiguousSparse2DKernelTransform ( const FContiguousSparse2DKernelTran... )
	FContiguousSparse2DKernelTransform ( const int32 NumInElements, const int32 NumOutElements )	NumInElements sets the expected number of input array elements as well as the number of elements in a row.

Destructors

	Name	Description
	~FContiguousSparse2DKernelTransform()

Functions

	Name	Description
int32	GetNumInElements()	Returns the required size of the input array
int32	GetNumOutElements()	Returns the size of the output array
void	SetRow ( const int32 RowIndex, const int32 StartIndex, TArrayView< const float > OffsetVal... )	Set the kernel values for an individual row.
void	TransformArray ( TArrayView< const float > InView, TArray< float >& OutArray )	Transforms the input array given the kernel.
void	TransformArray ( TArrayView< const float > InView, AlignedFloatBuffer& OutArray )	Transforms the input array given the kernel.
void	TransformArray ( const float* InArray, float* OutArray )	Transforms the input array given the kernel.

Operators

		Name	Description
	FContiguousS...	operator= ( const FContiguousSparse2DKernelTran... )

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