GLViewer_Grid Class Reference

#include <GLViewer_Grid.h>

Public Member Functions
	GLViewer_Grid ()
	A default constructor.
	GLViewer_Grid (GLfloat width, GLfloat height, GLfloat winW, GLfloat winH, GLfloat xSize, GLfloat ySize, GLfloat xPan, GLfloat yPan, GLfloat xScale, GLfloat yScale)
	A constructor.
	~GLViewer_Grid ()
void	draw ()
	Draws grid.
void	setGridColor (GLfloat r, GLfloat g, GLfloat b)
	Sets color of grid in RGB format.
void	setAxisColor (GLfloat r, GLfloat g, GLfloat b)
	Sets color of grid axes in RGB format.
void	setGridWidth (float)
void	setCenterRadius (int)
	Sets Radius of center point( begin coords )
void	setSize (float xs, float ys)
	Sets steps along x and y directions.
void	setPan (float xp, float yp)
	Sets offset along x and y direction.
bool	setZoom (float zoom)
	Sets common scale factor along x and y direction.
void	setResize (float winW, float winH, float Zoom)
	Recomputes grid in new size and scale of view.
void	getSize (float &, float &) const
void	getPan (float &, float &) const
void	getScale (float &, float &) const
void	setScaleFactor (int)
	Sets step of scale.
int	getScaleFactor ()
Protected Member Functions
bool	initList ()
	Initialize grid display list.
Protected Attributes
GLuint	myGridList
GLfloat	myGridColor [3]
GLfloat	myAxisColor [3]
GLfloat	myGridHeight
GLfloat	myGridWidth
GLfloat	myWinW
GLfloat	myWinH
GLfloat	myXSize
GLfloat	myYSize
GLfloat	myXPan
GLfloat	myYPan
GLfloat	myXScale
GLfloat	myYScale
GLfloat	myLineWidth
GLfloat	myCenterWidth
GLint	myCenterRadius
GLint	myScaleFactor
GLboolean	myIsUpdate

---

Detailed Description

Class GLViewer_Grid 2D rectangular grid for GLViewer Grid is adapt cells for current view

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Constructor & Destructor Documentation

GLViewer_Grid::GLViewer_Grid

(

)

Default constructor

References myAxisColor, and myGridColor.

GLViewer_Grid::GLViewer_Grid	(	GLfloat	width,
		GLfloat	height,
		GLfloat	winW,
		GLfloat	winH,
		GLfloat	xSize,
		GLfloat	ySize,
		GLfloat	xPan,
		GLfloat	yPan,
		GLfloat	xScale,
		GLfloat	yScale
	)

Constructor

Parameters:

width	and
height	- width and height of grid
winW	and
winH	- width and height of window
xSize	and
ySize	- steps along x and y direction
xPan	and
yPan	- offsets along x and y direction
xScale	and
yScal	- scale factors along x and y direction

References myAxisColor, and myGridColor.

GLViewer_Grid::~GLViewer_Grid

(

)

Destructor

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Member Function Documentation

void GLViewer_Grid::draw

(

)

Performs OpenGL drawing

References initList(), myGridList, and myIsUpdate.

void GLViewer_Grid::setGridColor	(	GLfloat	r,
		GLfloat	g,
		GLfloat	b
	)

Changes color of grid

Parameters:

r,g,b

- components of color

References myGridColor, and myIsUpdate.

void GLViewer_Grid::setAxisColor	(	GLfloat	r,
		GLfloat	g,
		GLfloat	b
	)

Changes color of axis

Parameters:

r,g,b

- components of color

References myAxisColor, and myIsUpdate.

void GLViewer_Grid::setGridWidth

(

float

w

)

Changes grid width

Parameters:

w	- new grid width

References myGridWidth, and myIsUpdate.

void GLViewer_Grid::setCenterRadius

(

int

r

)

Sets Radius of center point( begin coords )

Parameters:

r	- new radius

References myCenterRadius, and myIsUpdate.

void GLViewer_Grid::setSize	(	float	xSize,
		float	ySize
	)

Sets grid size along X and Y axis

Parameters:

xSize	- size along X axis
ySize	- size along Y axis

References myIsUpdate, myXSize, and myYSize.

void GLViewer_Grid::setPan	(	float	xPan,
		float	yPan
	)

Sets panning of grid

Parameters:

xPan	- panning along X axis
yPan	- panning along Y axis

References myIsUpdate, myXPan, and myYPan.

bool GLViewer_Grid::setZoom

(

float

zoom

)

Sets zoom

Parameters:

zoom	- new coefficient of zooming

References myGridHeight, myGridWidth, myIsUpdate, myXScale, and myYScale.

void GLViewer_Grid::setResize	(	float	WinW,
		float	WinH,
		float	zoom
	)

Sets parameters of grid by zoom coefficient and window size

Parameters:

WinW	- window width
WinH	- window height
zoom	- zoom coefficient

References myGridHeight, myGridWidth, myIsUpdate, myWinH, myWinW, myXScale, myYScale, and setZoom().

void GLViewer_Grid::getSize	(	float &	xSize,
		float &	ySize
	)		const

Returns:

grid size along x and y axis

Parameters:

xSize	- for size along x axis
ySize	- for size along y axis

References myXSize, and myYSize.

void GLViewer_Grid::getPan	(	float &	xPan,
		float &	yPan
	)		const

Returns:

panning along x and y axis

Parameters:

xPan	- for panning along x axis
yPan	- for panning along y axis

References myXPan, and myYPan.

void GLViewer_Grid::getScale	(	float &	xScale,
		float &	yScale
	)		const

Returns:

scaling along x and y axis

Parameters:

xScale	- for scaling along x axis
yScale	- for scaling along y axis

References myXScale, and myYScale.

void GLViewer_Grid.setScaleFactor

(

int

)

int GLViewer_Grid.getScaleFactor

(

)

bool GLViewer_Grid::initList

(

)

[protected]

Initialize grid display list

References test_big_table.k, myAxisColor, myCenterRadius, myCenterWidth, myGridColor, myGridHeight, myGridList, myGridWidth, myIsUpdate, myLineWidth, myScaleFactor, myXPan, myXScale, myXSize, myYPan, myYScale, myYSize, SEGMENTS, and STEP.

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Field Documentation

GLuint GLViewer_Grid.myGridList [protected]

GLfloat GLViewer_Grid.myGridColor[3] [protected]

GLfloat GLViewer_Grid.myAxisColor[3] [protected]

GLfloat GLViewer_Grid.myGridHeight [protected]

GLfloat GLViewer_Grid.myGridWidth [protected]

GLfloat GLViewer_Grid.myWinW [protected]

GLfloat GLViewer_Grid.myWinH [protected]

GLfloat GLViewer_Grid.myXSize [protected]

GLfloat GLViewer_Grid.myYSize [protected]

GLfloat GLViewer_Grid.myXPan [protected]

GLfloat GLViewer_Grid.myYPan [protected]

GLfloat GLViewer_Grid.myXScale [protected]

GLfloat GLViewer_Grid.myYScale [protected]

GLfloat GLViewer_Grid.myLineWidth [protected]

GLfloat GLViewer_Grid.myCenterWidth [protected]

GLint GLViewer_Grid.myCenterRadius [protected]

GLint GLViewer_Grid.myScaleFactor [protected]

GLboolean GLViewer_Grid.myIsUpdate [protected]