ZBuffer Class Reference

#include <ZBuffer.h>

Public Member Functions
	ZBuffer (int width, int height)
	~ZBuffer ()
void	clear ()
double	getPixel (int x, int y)
void	setPixel (int x, int y, double z)

Private Attributes
double **	buffer
int	height
int	width
int	xMax
int	xMin
int	yMax
int	yMin

Detailed Description

A z-buffer (used for hidden line/surface removal).

A ZBuffer object uses Euclidean coordinates with (0,0) at the center.

Constructor & Destructor Documentation

ZBuffer()

ZBuffer::ZBuffer	(	int	width,
		int	height
	)

Explicit Value Constructor.

Parameters

width	The width of the ZBuffer (in pixels)
height	The height of the ZBuffer (in pixels)

~ZBuffer()

ZBuffer::~ZBuffer

(

)

Destructor.

Member Function Documentation

clear()

void ZBuffer::clear

(

)

Clear this ZBuffer.

getPixel()

double ZBuffer::getPixel	(	int	x,
		int	y
	)

Get the z-value of the pixel at (x,y).

Parameters

x	The horizontal coordinate
y	The vertical coordinate

Returns

The z-value (or INFINITY if pixel empty or not valid)

setPixel()

void ZBuffer::setPixel	(	int	x,
		int	y,
		double	z
	)

Set the z-value of the pixel at (x,y).

Parameters

x	The horizontal coordinate
y	The vertical coordinate
z	The z-value

Member Data Documentation

buffer

double** ZBuffer::buffer

private

The contents of the buffer.

height

int ZBuffer::height

private

The height (in pixels).

width

int ZBuffer::width

private

The width (in pixels).

xMax

int ZBuffer::xMax

private

The maximum horizontal index.

xMin

int ZBuffer::xMin

private

The minimum horizontal index.

yMax

int ZBuffer::yMax

private

The maximum vertical index.

yMin

int ZBuffer::yMin

private

The minimum vertical index.

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

• ZBuffer.h
• ZBuffer.cpp