goSignal2D< T > Class Template Reference

Public Member Functions
	goSignal2D (goSize_t width, goSize_t height, goSize_t border_x=16, goSize_t border_y=16, goSize_t blockWidth=GOSIGNAL_BLOCKSIZE_X, goSize_t blockHeight=GOSIGNAL_BLOCKSIZE_Y)
T *	getPtr (goIndex_t x, goIndex_t y)
T *	getPtrStart ()
goIndex_t	getBorderX ()
goIndex_t	getBorderY ()
goSize_t	getSizeX ()
goSize_t	getSizeY ()
goPtrOffset_t	getOffsetX ()
	Currently just returns 1.
goPtrOffset_t	getOffsetY ()
void	resize (goSize_t width, goSize_t height)
goSignal2D< T > &	operator-= (goSignal2D< T > &other)
	Subtracts other from this.
goSignal2D< T > &	operator+= (goSignal2D< T > &other)
	Adds other to this.
goSignal2D< T > &	operator*= (T value)
	Multiply all samples with value.
goSignal2D< T > &	operator= (goSignal2D< T > &other)
	Copy operator (deep copy).
T	meanDiff (goSignal2D< T > &other, goIndex_t xrel, goIndex_t yrel)
void	fill (T val)
void	put (goSignal2D< T > &s, goIndex_t x, goIndex_t y)
void	interpolateBorders (bool interpolate=false)
void	interpolateBorders (goIndex_t xleft, goIndex_t xright, goIndex_t yup, goIndex_t ydown)
void	interpolateBordersPeriodic ()
void	sample (goFloat x, goFloat y, goFloat &c)
goSize_t	memoryUsage () const
	Returns the size of this object or some measure of its memory consumption. More...

Protected Attributes
goSize_t	sizeX
goSize_t	sizeY
goSize_t	blockSizeX
goSize_t	blockSizeY
goIndex_t	borderX
goIndex_t	borderY
goArray< T > *	data
goSize_t	total_memory_usage

Constructor & Destructor Documentation

goSignal2D()

template<class T >

goSignal2D< T >::goSignal2D	(	goSize_t	width,
		goSize_t	height,
		goSize_t	border_x = 16,
		goSize_t	border_y = 16,
		goSize_t	blockWidth = GOSIGNAL_BLOCKSIZE_X,
		goSize_t	blockHeight = GOSIGNAL_BLOCKSIZE_Y
	)

blockSizes are in number of shifts and not used yet ! For now, data is stored linearly.

Member Function Documentation

fill()

template<class T>

void goSignal2D< T >::fill

(

T

val

)

m: 3x3 transformation matrix applied to other

getOffsetY()

template<class T >

goPtrOffset_t goSignal2D< T >::getOffsetY

(

)

Returns

Pointer distance between point (x, y) and (x, y + 1)

getPtr()

template<class T >

T * goSignal2D< T >::getPtr	(	goIndex_t	x,
		goIndex_t	y
	)

Get Ptr to point [x,y].
Uses Multiplication, so don't use excessively yet !

Returns

Pointer to point [x,y]

getPtrStart()

template<class T >

T * goSignal2D< T >::getPtrStart

(

)

Returns

Pointer to point [0,0]

interpolateBorders() [1/2]

template<class T >

void goSignal2D< T >::interpolateBorders

(

bool

interpolate = false

)

Interpolates the signal into the borders (only one sample wide so far). The argument does nothing at the moment, the neighbouring value is simply copied.

interpolateBorders() [2/2]

template<class T >

void goSignal2D< T >::interpolateBorders	(	goIndex_t	xleft,
		goIndex_t	xright,
		goIndex_t	yup,
		goIndex_t	ydown
	)

Copy lines from offset xleft to the the -1st column, xright to the sizeX'st column and same in y direction. (Introduced for upsampled signals).

meanDiff()

template<class T>

T goSignal2D< T >::meanDiff	(	goSignal2D< T > &	other,
		goIndex_t	xrel,
		goIndex_t	yrel
	)

Calculates the mean difference between other and this. Other's upper left corner lies at (xrel, yrel) relative this' upper left corner. TO DO: calculate the deviation of the mean difference (to detect brighness differences).

other lies on this, (xrel,yrel) denotes the upper left corner of other relative to this. (this' upper left corner lies in (0,0), coordinates are like screen coordinates)

memoryUsage()

template<class T>

goSize_t goSignal2D< T >::memoryUsage ( ) const

inlinevirtual

Returns the size of this object or some measure of its memory consumption.

Overload this function as you please and as it makes sense.

Returns

Size in bytes of this object.

Reimplemented from goObjectBase.

resize()

template<class T >

void goSignal2D< T >::resize	(	goSize_t	width,
		goSize_t	height
	)

Resizing the 2D signal. The signal itself is stored in the "upper left" corner of the new resized signal.
Speed: slow. Tested: no.

sample()

template<class T >

void goSignal2D< T >::sample ( goFloat  x, goFloat  y, goFloat &  c  )

inline

Bilinear interpolation

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

• gosignal2d.h
• gosignal2d.cc