SoArithmetic Class Reference
[CPU algorithms]

Arithmetic functions for buffers More...

#include <Inventor/algorithms/SoArithmetic.h>

Public Member Functions
	SoArithmetic ()
virtual int	add (SoBufferObject inputBufferA, const SbDataType typeA, SoBufferObject inputBufferB, const SbDataType typeB, SoBufferObject *outputBufferC, const SbDataType typeC)
int	add (SoCpuBufferObject inputBufferA, const SbDataType typeA, SoCpuBufferObject inputBufferB, const SbDataType typeB, SoCpuBufferObject *outputBufferC, const SbDataType typeC)
virtual int	mult (SoBufferObject inputBufferA, const SbDataType typeA, SoBufferObject inputBufferB, const SbDataType typeB, SoBufferObject *outputBufferC, const SbDataType typeC)
int	mult (SoCpuBufferObject inputBufferA, const SbDataType typeA, SoCpuBufferObject inputBufferB, const SbDataType typeB, SoCpuBufferObject *outputBufferC, const SbDataType typeC)
virtual int	scale (SoBufferObject inputBufferA, const SbDataType typeA, SoBufferObject outputBufferB, const SbDataType typeB, const float scaleValue)
int	scale (SoCpuBufferObject inputBufferA, const SbDataType typeA, SoCpuBufferObject outputBufferB, const SbDataType typeB, const float scaleValue)
virtual int	shift (SoBufferObject inputBufferA, const SbDataType typeA, SoBufferObject outputBufferB, const SbDataType typeB, const float shiftFactor)
int	shift (SoCpuBufferObject inputBufferA, const SbDataType typeA, SoCpuBufferObject outputBufferB, const SbDataType typeB, const float shiftFactor)
virtual int	madd (SoBufferObject inputBufferA, const SbDataType typeA, SoBufferObject inputBufferB, const SbDataType typeB, SoBufferObject *outputBufferC, const SbDataType typeC, const float scaleValue)
int	madd (SoCpuBufferObject inputBufferA, const SbDataType typeA, SoCpuBufferObject inputBufferB, const SbDataType typeB, SoCpuBufferObject *outputBufferC, const SbDataType typeC, const float scaleValue)
virtual void	computeMinMax (SoBufferObject *inputBuffer, const SbDataType dataType, double &min, double &max)
virtual void	computeMinMax (SoBufferObject *inputBuffer, const SbDataType dataType, const SbVec3i32 &arrayDim, const SbBox3i32 &range, double &min, double &max)
void	computeMinMax (SoCpuBufferObject *inputBuffer, const SbDataType dataType, const SbVec3i32 &arrayDim, const SbBox3i32 &range, double &min, double &max)
virtual void	computeMinMaxWithUndefinedValue (SoBufferObject *inputBuffer, const SbDataType dataType, const double undefinedValue, double &min, double &max)
virtual void	computeMinMaxWithUndefinedValue (SoBufferObject *inputBuffer, const SbDataType dataType, const SbVec3i32 &arrayDim, const SbBox3i32 &range, const double undefinedValue, double &min, double &max)
void	computeMinMaxWithUndefinedValue (SoCpuBufferObject *inputBuffer, const SbDataType dataType, const SbVec3i32 &arrayDim, const SbBox3i32 &range, const double undefinedValue, double &min, double &max)

Detailed Description

Arithmetic functions for buffers

The Arithmetic module provides basic Add, Multiply, etc functions that operate on buffers.

Examples:

Constructor & Destructor Documentation

SoArithmetic::SoArithmetic ( )

Constructor.

Member Function Documentation

int SoArithmetic::add	(	SoCpuBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoCpuBufferObject *	inputBufferB,
		const SbDataType	typeB,
		SoCpuBufferObject *	outputBufferC,
		const SbDataType	typeC
	)

Add two buffers into a third one.

Fast version for Cpu buffers.

virtual int SoArithmetic::add	(	SoBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoBufferObject *	inputBufferB,
		const SbDataType	typeB,
		SoBufferObject *	outputBufferC,
		const SbDataType	typeC
	)			`[virtual]`

Add two buffers into a third one.

C = A + B
Note: C can be a reference to A or B.
Limitation: typeA and typeB must be the same as typeC.

void SoArithmetic::computeMinMax	(	SoCpuBufferObject *	inputBuffer,
		const SbDataType	dataType,
		const SbVec3i32 &	arrayDim,
		const SbBox3i32 &	range,
		double &	min,
		double &	max
	)

Compute min max of values contained in the specified range of the buffer.

Fast version for Cpu buffers.

virtual void SoArithmetic::computeMinMax	(	SoBufferObject *	inputBuffer,
		const SbDataType	dataType,
		const SbVec3i32 &	arrayDim,
		const SbBox3i32 &	range,
		double &	min,
		double &	max
	)			`[virtual]`

Compute min max of values contained in the specified range of the buffer.

Assumes the buffer contains a 3D array of values. However 1D and 2D arrays can be handled as degenerate cases. For example, to use a 1D array of length N and compute over the range I to J:

Set arrayDim = N,1,1 (do not use 0 for any dimension)
Set range = I,0,0,J,1,1 (be sure min and max for each axis are not the same)

Parameters:

	inputBuffer	The source buffer object.
	dataType	The type of the data in the source buffer object.
	arrayDim	Dimensions of the array (can be degenerate, e.g. N,1,1)
	range	Subset of the array to consider
	min,max	Result values

virtual void SoArithmetic::computeMinMax	(	SoBufferObject *	inputBuffer,
		const SbDataType	dataType,
		double &	min,
		double &	max
	)			`[virtual]`

Compute min max of all values contained in a buffer.

Parameters:

	inputBuffer	The source buffer object.
	dataType	The type of the data in the source buffer object.
	min,max	Result values

void SoArithmetic::computeMinMaxWithUndefinedValue	(	SoCpuBufferObject *	inputBuffer,
		const SbDataType	dataType,
		const SbVec3i32 &	arrayDim,
		const SbBox3i32 &	range,
		const double	undefinedValue,
		double &	min,
		double &	max
	)

Compute min max of values contained in the specified range of the buffer that are not equal to the specified undefined value.

Fast version for Cpu buffers.

virtual void SoArithmetic::computeMinMaxWithUndefinedValue	(	SoBufferObject *	inputBuffer,
		const SbDataType	dataType,
		const SbVec3i32 &	arrayDim,
		const SbBox3i32 &	range,
		const double	undefinedValue,
		double &	min,
		double &	max
	)			`[virtual]`

Compute min max of values contained in the specified range of the buffer that are not equal to the specified undefined value.

Assumes the buffer contains a 3D array of values. However 1D and 2D arrays can be handled as degenerate cases. For example, to use a 1D array of length N and compute over the range I to J:

Set arrayDim = N,1,1 (do not use 0 for any dimension)
Set range = I,0,0,J,1,1 (be sure min and max for each axis are not the same)

Parameters:

	inputBuffer	The source buffer object.
	dataType	The type of the data in the source buffer object.
	arrayDim	Dimensions of the array (can be degenerate, e.g. N,1,1)
	range	Subset of the array to consider
	undefinedValue	ignored value
	min,max	Result values

virtual void SoArithmetic::computeMinMaxWithUndefinedValue	(	SoBufferObject *	inputBuffer,
		const SbDataType	dataType,
		const double	undefinedValue,
		double &	min,
		double &	max
	)			`[virtual]`

Compute min max of all values contained in a buffer that are not equal to the specified undefined value.

Parameters:

	inputBuffer	The source buffer object.
	dataType	The type of the data in the source buffer object.
	undefinedValue	ignored value
	min,max	Result values

int SoArithmetic::madd	(	SoCpuBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoCpuBufferObject *	inputBufferB,
		const SbDataType	typeB,
		SoCpuBufferObject *	outputBufferC,
		const SbDataType	typeC,
		const float	scaleValue
	)

C = A * scale + B
Fast version for Cpu buffers.

virtual int SoArithmetic::madd	(	SoBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoBufferObject *	inputBufferB,
		const SbDataType	typeB,
		SoBufferObject *	outputBufferC,
		const SbDataType	typeC,
		const float	scaleValue
	)			`[virtual]`

C = A * scale + B
Note: C can be a reference to A or B
Limitation: typeA and typeB must be the same as typeC.

int SoArithmetic::mult	(	SoCpuBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoCpuBufferObject *	inputBufferB,
		const SbDataType	typeB,
		SoCpuBufferObject *	outputBufferC,
		const SbDataType	typeC
	)

Multiply two buffers into a third one.

Fast version for Cpu buffers.

virtual int SoArithmetic::mult	(	SoBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoBufferObject *	inputBufferB,
		const SbDataType	typeB,
		SoBufferObject *	outputBufferC,
		const SbDataType	typeC
	)			`[virtual]`

Multiply two buffers into a third one.

C = A * B Note: C can be a reference to A or B
Limitation: typeA and typeB must be the same as typeC

int SoArithmetic::scale	(	SoCpuBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoCpuBufferObject *	outputBufferB,
		const SbDataType	typeB,
		const float	scaleValue
	)

B = A * scaleFactor
Fast version for Cpu buffers.

virtual int SoArithmetic::scale	(	SoBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoBufferObject *	outputBufferB,
		const SbDataType	typeB,
		const float	scaleValue
	)			`[virtual]`

B = A * scaleFactor
Note: B can be a reference to A
Limitation: typeA must be the same as typeC.

int SoArithmetic::shift	(	SoCpuBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoCpuBufferObject *	outputBufferB,
		const SbDataType	typeB,
		const float	shiftFactor
	)

B = A + shiftFactor
Fast version for Cpu buffers.

virtual int SoArithmetic::shift	(	SoBufferObject *	inputBufferA,
		const SbDataType	typeA,
		SoBufferObject *	outputBufferB,
		const SbDataType	typeB,
		const float	shiftFactor
	)			`[virtual]`

B = A + shiftFactor
Note: B can be a reference to A
Limitation: typeA must be the same as typeC.

The documentation for this class was generated from the following file:

Inventor/algorithms/SoArithmetic.h

SoArithmetic Class Reference [CPU algorithms]

Public Member Functions

Detailed Description

SEE ALSO

Constructor & Destructor Documentation

Member Function Documentation

SoArithmetic Class Reference
[CPU algorithms]