Manage a bounding box defined by two SFVEC2F min max points. More...

#include <bbox_2d.h>

Public Member Functions
	BBOX_2D ()
	Create with default values a bounding box (not initialized).

	BBOX_2D (const SFVEC2F &aPbInit)
	Initialize a bounding box with a given point.

	BBOX_2D (const SFVEC2F &aPbMin, const SFVEC2F &aPbMax)
	Initialize a bounding box with a minimum and a maximum point.

	~BBOX_2D ()

void	Set (const SFVEC2F &aPbMin, const SFVEC2F &aPbMax)
	Set bounding box with new parameters.

void	Set (const BBOX_2D &aBBox)
	Set bounding box based on another bounding box.

void	Union (const SFVEC2F &aPoint)
	Recalculate the bounding box adding a point.

void	Union (const BBOX_2D &aBBox)
	Recalculate the bounding box adding other bounding box.

void	Scale (float aScale)
	Scale a bounding box by its center.

void	ScaleNextUp ()
	Scale a bounding box to the next float representation making it larger.

void	ScaleNextDown ()
	Scale a bounding box to the next float representation making it smaller.

bool	Intersects (const BBOX_2D &aBBox) const
	Test if a bounding box intersects this box.

bool	Intersects (const SFVEC2F &aCenter, float aRadiusSquared) const
	Test if a circle intersects this box.

bool	Inside (const SFVEC2F &aPoint) const
	Check is a point is inside this bounding box.

bool	Inside (const BBOX_2D &aBBox) const
	Check if a bounding box is inside this bounding box.

float	Area () const
	Calculate the area of a bounding box.

bool	IsInitialized () const
	Check if this bounding box is already initialized.

void	Reset ()
	Reset the bounding box to zero and uninitialize it.

SFVEC2F	GetCenter () const

SFVEC2F	GetExtent () const

const SFVEC2F &	Min () const

const SFVEC2F &	Max () const

unsigned int	MaxDimension () const

float	Perimeter () const

bool	Intersect (const RAY2D &aRay, float *t) const

bool	Intersect (const RAY2D &aRay, float aOutHitT0, float aOutHitT1) const

bool	Intersect (const RAYSEG2D &aRaySeg) const

Private Attributes
SFVEC2F	m_min
	point of the lower position of the bounding box

SFVEC2F	m_max
	point of the higher position of the bounding box

Detailed Description

Manage a bounding box defined by two SFVEC2F min max points.

Definition at line 41 of file bbox_2d.h.

Constructor & Destructor Documentation

◆ BBOX_2D() [1/3]

BBOX_2D::BBOX_2D ( )

Create with default values a bounding box (not initialized).

Definition at line 37 of file bbox_2d.cpp.

References Reset().

Referenced by Inside(), Intersects(), Set(), and Union().

◆ BBOX_2D() [2/3]

BBOX_2D::BBOX_2D ( const SFVEC2F & aPbInit )

explicit

Initialize a bounding box with a given point.

Parameters

aPbInit a point for the bounding box initialization.

Definition at line 43 of file bbox_2d.cpp.

References m_max, and m_min.

◆ BBOX_2D() [3/3]

BBOX_2D::BBOX_2D	(	const SFVEC2F &	aPbMin,
		const SFVEC2F &	aPbMax )

Initialize a bounding box with a minimum and a maximum point.

Parameters

aPbMin	the minimum point to initialize the bounding box.
aPbMax	the maximum point to initialize the bounding box.

Definition at line 50 of file bbox_2d.cpp.

References Set().

◆ ~BBOX_2D()

BBOX_2D::~BBOX_2D ( )

Definition at line 56 of file bbox_2d.cpp.

Member Function Documentation

◆ Area()

float BBOX_2D::Area ( ) const

Calculate the area of a bounding box.

Returns: area of this bounding box.

Definition at line 242 of file bbox_2d.cpp.

References GetExtent().

◆ GetCenter()

SFVEC2F BBOX_2D::GetCenter ( ) const

Returns: the position of the center of this bounding box.

Definition at line 119 of file bbox_2d.cpp.

References m_max, and m_min.

Referenced by Scale().

◆ GetExtent()

SFVEC2F BBOX_2D::GetExtent ( ) const

Returns: SFVEC2F - max-min

Definition at line 125 of file bbox_2d.cpp.

References m_max, and m_min.

Referenced by Area(), ConvertPolygonToBlocks(), MaxDimension(), and Perimeter().

◆ Inside() [1/2]

bool BBOX_2D::Inside ( const BBOX_2D & aBBox ) const

Check if a bounding box is inside this bounding box.

Parameters

aBBox the bounding box to test if it is inside

Returns: true if aBBox is smaller and all points are inside

Definition at line 232 of file bbox_2d.cpp.

References BBOX_2D(), Inside(), IsInitialized(), Max(), and Min().

◆ Inside() [2/2]

bool BBOX_2D::Inside ( const SFVEC2F & aPoint ) const

Check is a point is inside this bounding box.

Parameters

aPoint point to test.

Definition at line 223 of file bbox_2d.cpp.

References IsInitialized(), m_max, and m_min.

Referenced by extractPathsFrom(), Inside(), and BVH_CONTAINER_2D::recursiveIntersectAny().

◆ Intersect() [1/3]

bool BBOX_2D::Intersect	(	const RAY2D &	aRay,
		float *	aOutHitT0,
		float *	aOutHitT1 ) const

Definition at line 300 of file bbox_2d.cpp.

References RAY2D::m_InvDir, m_max, m_min, and RAY2D::m_Origin.

◆ Intersect() [2/3]

bool BBOX_2D::Intersect	(	const RAY2D &	aRay,
		float *	t ) const

Parameters

aRay	is a ray to intersect the box.
t	is the distance point of the ray of the intersection (if true).

Returns: true if the ray hits the box.

Definition at line 250 of file bbox_2d.cpp.

References RAY2D::m_InvDir, m_max, m_min, and RAY2D::m_Origin.

Referenced by BVH_CONTAINER_2D::recursiveIntersectAny().

◆ Intersect() [3/3]

bool BBOX_2D::Intersect ( const RAYSEG2D & aRaySeg ) const

Definition at line 275 of file bbox_2d.cpp.

References RAYSEG2D::m_InvDir, RAYSEG2D::m_Length, m_max, m_min, and RAYSEG2D::m_Start.

◆ Intersects() [1/2]

bool BBOX_2D::Intersects ( const BBOX_2D & aBBox ) const

Test if a bounding box intersects this box.

Parameters

aBBox the bounding box to check if it intersects.

Definition at line 211 of file bbox_2d.cpp.

References BBOX_2D(), IsInitialized(), m_max, and m_min.

Referenced by extractPathsFrom(), FILLED_CIRCLE_2D::Intersects(), RING_2D::Intersects(), ROUND_SEGMENT_2D::Intersects(), and BVH_CONTAINER_2D::recursiveGetListObjectsIntersects().

◆ Intersects() [2/2]

bool BBOX_2D::Intersects	(	const SFVEC2F &	aCenter,
		float	aRadiusSquared ) const

Test if a circle intersects this box.

Parameters

aBBox the bounding box to check if it intersects.

Definition at line 184 of file bbox_2d.cpp.

References m_max, and m_min.

◆ IsInitialized()

bool BBOX_2D::IsInitialized ( ) const

Check if this bounding box is already initialized.

Returns: True if it was initialized, otherwise false.

Definition at line 79 of file bbox_2d.cpp.

References m_max, and m_min.

Referenced by BVH_CONTAINER_2D::GetIntersectingObjects(), Inside(), Inside(), Intersects(), BVH_CONTAINER_2D::recursiveBuild_MIDDLE_SPLIT(), BVH_CONTAINER_2D::recursiveGetListObjectsIntersects(), Scale(), and Set().

◆ Max()

const SFVEC2F & BBOX_2D::Max ( ) const

inline

Returns: the maximum vertex position.

Definition at line 180 of file bbox_2d.h.

References m_max.

Referenced by ConvertPolygonToBlocks(), RENDER_3D_RAYTRACE_BASE::createObject(), extractPathsFrom(), Inside(), ROUND_SEGMENT_2D::Intersects(), FILLED_CIRCLE_2D::IsBBoxInside(), ROUND_SEGMENT_2D::IsBBoxInside(), LAYER_ITEM::LAYER_ITEM(), and Set().

◆ MaxDimension()

unsigned int BBOX_2D::MaxDimension ( ) const

Returns: the index of the max dimension (0=x, 1=y)

Definition at line 131 of file bbox_2d.cpp.

References GetExtent(), and result.

Referenced by BVH_CONTAINER_2D::recursiveBuild_MIDDLE_SPLIT().

◆ Min()

const SFVEC2F & BBOX_2D::Min ( ) const

inline

Returns: the minimum vertex position.

Definition at line 175 of file bbox_2d.h.

References m_min.

Referenced by ConvertPolygonToBlocks(), RENDER_3D_RAYTRACE_BASE::createObject(), extractPathsFrom(), Inside(), ROUND_SEGMENT_2D::Intersects(), FILLED_CIRCLE_2D::IsBBoxInside(), ROUND_SEGMENT_2D::IsBBoxInside(), LAYER_ITEM::LAYER_ITEM(), and Set().

◆ Perimeter()

float BBOX_2D::Perimeter ( ) const

Returns: the surface area of the box.

Definition at line 142 of file bbox_2d.cpp.

References GetExtent().

◆ Reset()

void BBOX_2D::Reset ( )

Reset the bounding box to zero and uninitialize it.

Definition at line 86 of file bbox_2d.cpp.

References m_max, and m_min.

Referenced by BBOX_2D(), ConvertPolygonToBlocks(), and BVH_CONTAINER_2D::recursiveBuild_MIDDLE_SPLIT().

◆ Scale()

void BBOX_2D::Scale ( float aScale )

Scale a bounding box by its center.

Parameters

aScale scale factor to apply

Definition at line 150 of file bbox_2d.cpp.

References GetCenter(), IsInitialized(), m_max, and m_min.

◆ ScaleNextDown()

void BBOX_2D::ScaleNextDown ( )

Scale a bounding box to the next float representation making it smaller.

Definition at line 172 of file bbox_2d.cpp.

References m_max, m_min, NextFloatDown(), and NextFloatUp().

◆ ScaleNextUp()

void BBOX_2D::ScaleNextUp ( )

Scale a bounding box to the next float representation making it larger.

Definition at line 162 of file bbox_2d.cpp.

References m_max, m_min, NextFloatDown(), and NextFloatUp().

Referenced by ConvertPolygonToBlocks(), and LAYER_ITEM::LAYER_ITEM().

◆ Set() [1/2]

void BBOX_2D::Set ( const BBOX_2D & aBBox )

Set bounding box based on another bounding box.

Parameters

BBOX_2D a bounding box to initialize this one.

Definition at line 71 of file bbox_2d.cpp.

References BBOX_2D(), IsInitialized(), Max(), Min(), and Set().

◆ Set() [2/2]

void BBOX_2D::Set	(	const SFVEC2F &	aPbMin,
		const SFVEC2F &	aPbMax )

Set bounding box with new parameters.

Parameters

aPbMin	the minimum point to initialize the bounding box.
aPbMax	the maximum point to initialize the bounding box.

Definition at line 61 of file bbox_2d.cpp.

References m_max, and m_min.

Referenced by BBOX_2D(), and Set().

◆ Union() [1/2]

void BBOX_2D::Union ( const BBOX_2D & aBBox )

Recalculate the bounding box adding other bounding box.

Parameters

aBBox the bounding box to be bounded.

Definition at line 105 of file bbox_2d.cpp.

References BBOX_2D(), m_max, and m_min.

◆ Union() [2/2]

void BBOX_2D::Union ( const SFVEC2F & aPoint )

Recalculate the bounding box adding a point.

Parameters

aPoint the point to be bounded

Definition at line 93 of file bbox_2d.cpp.

References m_max, and m_min.

Referenced by ConvertPolygonToBlocks(), and BVH_CONTAINER_2D::recursiveBuild_MIDDLE_SPLIT().

Member Data Documentation

◆ m_max

SFVEC2F BBOX_2D::m_max

private

point of the higher position of the bounding box

Definition at line 206 of file bbox_2d.h.

Referenced by BBOX_2D(), GetCenter(), GetExtent(), Inside(), Intersect(), Intersect(), Intersect(), Intersects(), Intersects(), IsInitialized(), Max(), Reset(), Scale(), ScaleNextDown(), ScaleNextUp(), Set(), Union(), and Union().

◆ m_min

SFVEC2F BBOX_2D::m_min

private

point of the lower position of the bounding box

Definition at line 205 of file bbox_2d.h.

Referenced by BBOX_2D(), GetCenter(), GetExtent(), Inside(), Intersect(), Intersect(), Intersect(), Intersects(), Intersects(), IsInitialized(), Min(), Reset(), Scale(), ScaleNextDown(), ScaleNextUp(), Set(), Union(), and Union().

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

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ BBOX_2D() [1/3]

◆ BBOX_2D() [2/3]

◆ BBOX_2D() [3/3]

◆ ~BBOX_2D()

Member Function Documentation

◆ Area()

◆ GetCenter()

◆ GetExtent()

◆ Inside() [1/2]

◆ Inside() [2/2]

◆ Intersect() [1/3]

◆ Intersect() [2/3]

◆ Intersect() [3/3]

◆ Intersects() [1/2]

◆ Intersects() [2/2]

◆ IsInitialized()

◆ Max()

◆ MaxDimension()

◆ Min()

◆ Perimeter()

◆ Reset()

◆ Scale()

◆ ScaleNextDown()

◆ ScaleNextUp()

◆ Set() [1/2]

◆ Set() [2/2]

◆ Union() [1/2]

◆ Union() [2/2]

Member Data Documentation

◆ m_max

◆ m_min