DrawManyPoints Class Reference

A point drawing class - for many points of same size & colour. More...

#include <drawables.h>

Inheritance diagram for DrawManyPoints:

Collaboration diagram for DrawManyPoints:

Public Member Functions
	DrawManyPoints ()
	Constructor. More...
virtual	~DrawManyPoints ()
	Destructor. More...
virtual unsigned int	getType () const
virtual DrawableObj *	clone () const
void	swap (std::vector< Point3D > &)
	Swap out the internal vector with an extenal one. More...
void	clear ()
	Remove all points. More...
void	addPoints (const std::vector< Point3D > &)
	Add points into the drawing vector. More...
void	setPoint (size_t offset, const Point3D &)
	Add a single point into the drawing vector, at a particular offset. More...
void	resize (size_t newSize)
	Reset the number of many points to draw. More...
void	setColour (float r, float g, float b, float alpha)
	set the color of the points to be drawn More...
void	setSize (float)
	Set the display size of the drawn poitns. More...
void	draw () const
	Draw the points. More...
void	shuffle ()
	Shuffle the points to remove anisotropic drawing effects. Thus must be done prior to draw call. More...
void	getBoundingBox (BoundCube &b) const
	Get the bounding box that encapuslates this object. More...
size_t	getNumPts () const
	return number of points More...
Public Member Functions inherited from DrawableObj
virtual bool	isOverlay () const
	Is this an overlay? By default, no. More...
	DrawableObj ()
	Constructor. More...
virtual bool	needsDepthSorting () const
	Do we need to do element based depth sorting? More...
virtual bool	isExplodable () const
	Can we break this object down into constituent elements? More...
virtual void	explode (std::vector< DrawableObj *> &simpleObjects)
	Break object down into simple elements. More...
virtual bool	hasChanged () const
void	setActive (bool active)
	Set the active state of the object. More...
void	setInteract (bool canAct)
	Set if user can interact with object, needed for opengl hit testing. More...
virtual	~DrawableObj ()
	Drawable destructor. More...
virtual void	recomputeParams (const std::vector< Point3D > &vecs, const std::vector< float > &scalars, unsigned int mode)
	If we offer any kind of external pointer interface; use this to do a recomputation as needed. This is needed for selection binding behaviour. More...
virtual Point3D	getCentroid () const
	Get the centre of the object. Only valid if object is simple. More...

Protected Attributes
std::vector< Point3D >	pts
	Vector of points to draw. More...
float	r
	Point colours (r,g,b,a) range: [0.0f,1.0f]. More...
float	g
float	b
float	a
float	size
	Size of the point. More...
bool	haveCachedBounds
BoundCube	cachedBounds
Protected Attributes inherited from DrawableObj
bool	active
	Is the drawable active? More...
bool	haveChanged
	Is the object changed since last set? More...

Additional Inherited Members
Static Public Member Functions inherited from DrawableObj
static void	setUseAlphaBlending (bool willBlend)
static void	setCurCamera (const Camera *c)
	Set the current camera. More...
static void	setTexPool (TexturePool *t)
	Set the current camera. More...
static void	clearTexPool ()
static void	setWindowSize (unsigned int x, unsigned int y)
static void	setBackgroundColour (float r, float g, float b)
Public Attributes inherited from DrawableObj
bool	canSelect
	Can be selected from openGL viewport interactively? More...
bool	wantsLight
	Wants lighting calculations active during render? More...
Static Protected Member Functions inherited from DrawableObj
static float	getHighContrastValue ()
Static Protected Attributes inherited from DrawableObj
static const Camera *	curCamera = 0
	Pointer to current scene camera. More...
static float	backgroundR
static float	backgroundG
static float	backgroundB
static TexturePool *	texPool =0
static bool	useAlphaBlend
static unsigned int	winX
static unsigned int	winY

Detailed Description

A point drawing class - for many points of same size & colour.

Constructor & Destructor Documentation

DrawManyPoints()

DrawManyPoints::DrawManyPoints

(

)

Constructor.

References DrawableObj::wantsLight.

Referenced by clone().

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~DrawManyPoints()

DrawManyPoints::~DrawManyPoints ( )

virtual

Destructor.

Member Function Documentation

addPoints()

void DrawManyPoints::addPoints

(

const std::vector< Point3D > &

vp

)

Add points into the drawing vector.

References haveCachedBounds, and pts.

clear()

void DrawManyPoints::clear

(

)

Remove all points.

References pts.

clone()

DrawableObj * DrawManyPoints::clone ( ) const

virtual

Reimplemented from DrawableObj.

References DrawManyPoints().

draw()

void DrawManyPoints::draw ( ) const

virtual

Draw the points.

Implements DrawableObj.

References a, b, g, pts, r, and size.

getBoundingBox()

void DrawManyPoints::getBoundingBox ( BoundCube &  b ) const

virtual

Get the bounding box that encapuslates this object.

Implements DrawableObj.

References cachedBounds, haveCachedBounds, pts, and BoundCube::setBounds().

getNumPts()

size_t DrawManyPoints::getNumPts ( ) const

inline

return number of points

getType()

virtual unsigned int DrawManyPoints::getType ( ) const

inlinevirtual

Implements DrawableObj.

References DRAW_TYPE_MANYPOINT.

resize()

void DrawManyPoints::resize

(

size_t

newSize

)

Reset the number of many points to draw.

References haveCachedBounds, and pts.

Referenced by VisController::updateScene().

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setColour()

void DrawManyPoints::setColour	(	float	r,
		float	g,
		float	b,
		float	alpha
	)

set the color of the points to be drawn

References a, b, g, and r.

Referenced by VisController::updateScene().

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setPoint()

void DrawManyPoints::setPoint	(	size_t	offset,
		const Point3D &	p
	)

Add a single point into the drawing vector, at a particular offset.

References ASSERT, haveCachedBounds, and pts.

Referenced by VisController::updateScene().

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setSize()

void DrawManyPoints::setSize

(

float

f

)

Set the display size of the drawn poitns.

References size.

Referenced by VisController::updateScene().

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shuffle()

void DrawManyPoints::shuffle

(

)

Shuffle the points to remove anisotropic drawing effects. Thus must be done prior to draw call.

References pts.

Referenced by VisController::updateScene().

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swap()

void DrawManyPoints::swap

(

std::vector< Point3D > &

)

Swap out the internal vector with an extenal one.

Member Data Documentation

a

float DrawManyPoints::a

protected

Referenced by draw(), and setColour().

b

float DrawManyPoints::b

protected

Referenced by draw(), and setColour().

cachedBounds

BoundCube DrawManyPoints::cachedBounds

mutableprotected

Referenced by getBoundingBox().

g

float DrawManyPoints::g

protected

Referenced by draw(), and setColour().

haveCachedBounds

bool DrawManyPoints::haveCachedBounds

mutableprotected

Referenced by addPoints(), getBoundingBox(), resize(), and setPoint().

pts

std::vector<Point3D> DrawManyPoints::pts

protected

Vector of points to draw.

Referenced by addPoints(), clear(), draw(), getBoundingBox(), resize(), setPoint(), and shuffle().

r

float DrawManyPoints::r

protected

Point colours (r,g,b,a) range: [0.0f,1.0f].

Referenced by draw(), and setColour().

size

float DrawManyPoints::size

protected

Size of the point.

Referenced by draw(), and setSize().

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

• drawables.h
• drawables.cpp