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Engine Class Reference

Public Methods
	Engine ()
	~Engine ()
void	drawFace (INDEX_FACE iface, SCENE *s)
void	drawObject (INDEX_OBJECT iobject, SCENE *s)
void	drawSuperVolume (SVOLUME v, SCENE *s)
void	drawScene (SCENE *s)
void	display (int)
void	startTimer (void)
void	stopTimer (const char *msg)
int	loadFile (const char *fileName)
void	setOrthoProjection (double x1, double y1, double x2, double y2)
void	xyzview (int param)
Data Fields
Lighting *	lighting
	takes care of the light model
Figures *	figures
	helps with some figures like axis and BBox
Mouse *	mouse
	an instance of mouse taking the mouse actions
int	axisSize
	size of the 3 axis
bool	drawAxis
	draw axis ON/OFF
bool	drawEdges
	draw the edges ON/OFF
bool	drawMaterial
	draw material ON/OFF
bool	drawBoundingBox
	draw BB ON/OFF
bool	drawSpot
	draw spots ON/OFF
bool	ready
	scene display is ready ? If not, some actions are skipped
SCENE *	scene
	OBJECT describing the scene.
Private Attributes
TessPoly *	tessPoly
	structure used for tesselation
timeb	tstart
	the start time of an event

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Detailed Description

This class handles most of the 3d operations of the application it's a kind of simple 3d engine. It contains an instance of each of the following classes : Mouse, Lighting, Figures and TessPoly. It also contains :

• a struct timeb tstart to chronometer display or loading time.
• a SCENE object containing the geometry and other model data.

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Constructor & Destructor Documentation

Engine::Engine (    )

Engine constructor. Constructs TessPoly, Lighting, Figures and Mouse objects Inits the others parameters

Engine::~Engine (    )

Engine Destructor Frees scene and destroys TessPoly

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Member Function Documentation

void Engine::display (  int    projMode )

Main display function Clears the current buffer, sets the Projection/Perspective mode According to parameters, draws BBos, Axis and spots Parameters: projMode  the Projection/Perspective mode

void Engine::drawFace (  INDEX_FACE    iface, SCENE *    s )

Drawing a single face Parameters: iface  the index of the face to draw s  a pointer towards the scene

void Engine::drawObject (  INDEX_OBJECT    iobject, SCENE *    s )

Draws the objects of the structure SCENE Parameters: iobject  the rank of the object in s->tabobj s  a pointer to a structure scene

void Engine::drawScene (  SCENE *    s )

Draws an instance of strucure SCENE Parameters: s  : a pointer to a structure scene

void Engine::drawSuperVolume (  SVOLUME    v, SCENE *    s )

Handles the super volumes of the structure SCENE Parameters: v  the rank of the volume in s->tabsv s  a pointer to a structure scene

int Engine::loadFile (  const char *    fileName )

Adds a file containing a 3D modelisation in the dat format to the scene or just loads it, allocating the scene object by the way Parameters: fileName  : the name of the file to load (may contain its path)

void Engine::setOrthoProjection (  double    x1, double    y1, double    x2, double    y2 )

Sets the orthogonal projection on a rectangle in world coordinates Note that aspect ratio is conserved. Parameters: x1, y1  first point defining the rectangle x2, y2  second point defining the rectangle

void Engine::startTimer (  void    )

Gets starting time of an event

void Engine::stopTimer (  const char *    msg )

Displays the duration since last call to startTimer Parameters: msg  : the message to display (it should be an action name)

void Engine::xyzview (  int    mode )

Sets the view to perspective or 3 types of orthogonal projection 0 : OXZ plane projection with perspective 1 : OXZ plane projection 2 : OXY plane projection 3 : OYZ plane projection Parameters: mode  : the view chosen

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Field Documentation

int Engine::axisSize

size of the 3 axis

bool Engine::drawAxis

draw axis ON/OFF

bool Engine::drawBoundingBox

draw BB ON/OFF

bool Engine::drawEdges

draw the edges ON/OFF

bool Engine::drawMaterial

draw material ON/OFF

bool Engine::drawSpot

draw spots ON/OFF

Figures* Engine::figures

helps with some figures like axis and BBox

Lighting* Engine::lighting

takes care of the light model

Mouse* Engine::mouse

an instance of mouse taking the mouse actions

bool Engine::ready

scene display is ready ? If not, some actions are skipped

SCENE* Engine::scene

OBJECT describing the scene.

TessPoly* Engine::tessPoly [private]

structure used for tesselation

struct timeb Engine::tstart [private]

the start time of an event

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

• engine.h
• engine.cpp

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