BoundingBox2D Class Reference

Represents a 2D axis-aligned bounding box. More...

#include <BoundingBox2D.h>

Collaboration diagram for BoundingBox2D:

Public Member Functions
	BoundingBox2D ()
	Default constructor initializing the bounding box to zero dimensions.
	BoundingBox2D (const Vector2D &min, const Vector2D &max)
	Constructs a BoundingBox2D with specified minimum and maximum corners.
void	UpdateBounds (const Vector2D &current)
	Updates the bounds of the bounding box to include the specified point.
Vector2D	GetMinimum ()
	Gets the minimum corner of the bounding box.
Vector2D	GetMaximum ()
	Gets the maximum corner of the bounding box.
Vector2D	GetCenter ()
	Gets the center point of the bounding box.
bool	Overlaps (BoundingBox2D *bb)
	Checks if this bounding box overlaps with another BoundingBox2D.
bool	Overlaps (const Vector2D &minI, const Vector2D &maxI)
	Checks if this bounding box overlaps with another box defined by min and max corners.
bool	Contains (const Vector2D &v)
	Checks if this bounding box contains a specified point.

Private Attributes
Vector2D	min
	Minimum corner of the bounding box.
Vector2D	max
	Maximum corner of the bounding box.
Vector2D	mid
	Center point of the bounding box.

Detailed Description

Represents a 2D axis-aligned bounding box.

Definition at line 21 of file BoundingBox2D.h.

Constructor & Destructor Documentation

BoundingBox2D() [1/2]

BoundingBox2D

(

)

Default constructor initializing the bounding box to zero dimensions.

Definition at line 3 of file BoundingBox2D.cpp.

References max, mid, and min.

BoundingBox2D() [2/2]

BoundingBox2D	(	const Vector2D &	min,
		const Vector2D &	max
	)

Constructs a BoundingBox2D with specified minimum and maximum corners.

Parameters

min	Minimum corner of the bounding box.
max	Maximum corner of the bounding box.

Definition at line 10 of file BoundingBox2D.cpp.

References max, mid, min, Vector2D::X, and Vector2D::Y.

Member Function Documentation

Contains()

bool Contains

(

const Vector2D &

v

)

Checks if this bounding box contains a specified point.

Parameters

v	The point to check.

Returns

True if the point is within the bounding box, false otherwise.

Definition at line 52 of file BoundingBox2D.cpp.

References max, min, Vector2D::X, and Vector2D::Y.

Referenced by QuadTree::Intersect().

GetCenter()

Vector2D GetCenter

(

)

Gets the center point of the bounding box.

Returns

Center point as a Vector2D.

Definition at line 34 of file BoundingBox2D.cpp.

References mid.

Referenced by Node::CreateChildNodes().

GetMaximum()

Vector2D GetMaximum

(

)

Gets the maximum corner of the bounding box.

Returns

Maximum corner as a Vector2D.

Definition at line 30 of file BoundingBox2D.cpp.

References max.

Referenced by Node::CreateChildNodes(), Triangle2D::DidIntersectSAT(), and Overlaps().

GetMinimum()

Vector2D GetMinimum

(

)

Gets the minimum corner of the bounding box.

Returns

Minimum corner as a Vector2D.

Definition at line 26 of file BoundingBox2D.cpp.

References min.

Referenced by Node::CreateChildNodes(), Triangle2D::DidIntersectSAT(), and Overlaps().

Overlaps() [1/2]

bool Overlaps

(

BoundingBox2D *

bb

)

Checks if this bounding box overlaps with another BoundingBox2D.

Parameters

bb	Pointer to the other BoundingBox2D.

Returns

True if the bounding boxes overlap, false otherwise.

Definition at line 38 of file BoundingBox2D.cpp.

References GetMaximum(), GetMinimum(), max, min, Vector2D::X, and Vector2D::Y.

Referenced by Triangle2D::DidIntersect().

Overlaps() [2/2]

bool Overlaps	(	const Vector2D &	minI,
		const Vector2D &	maxI
	)

Checks if this bounding box overlaps with another box defined by min and max corners.

Parameters

minI	Minimum corner of the other box.
maxI	Maximum corner of the other box.

Returns

True if the boxes overlap, false otherwise.

Definition at line 45 of file BoundingBox2D.cpp.

References max, min, Vector2D::X, and Vector2D::Y.

UpdateBounds()

void UpdateBounds

(

const Vector2D &

current

)

Updates the bounds of the bounding box to include the specified point.

Parameters

current

The point to include in the bounding box.

Definition at line 18 of file BoundingBox2D.cpp.

References max, Vector2D::Maximum(), mid, min, Vector2D::Minimum(), Vector2D::X, and Vector2D::Y.

Member Data Documentation

max

Vector2D max

private

Maximum corner of the bounding box.

Definition at line 24 of file BoundingBox2D.h.

Referenced by BoundingBox2D(), BoundingBox2D(), Contains(), GetMaximum(), Overlaps(), Overlaps(), and UpdateBounds().

mid

Vector2D mid

private

Center point of the bounding box.

Definition at line 25 of file BoundingBox2D.h.

Referenced by BoundingBox2D(), BoundingBox2D(), GetCenter(), and UpdateBounds().

min

Vector2D min

private

Minimum corner of the bounding box.

Definition at line 23 of file BoundingBox2D.h.

Referenced by BoundingBox2D(), BoundingBox2D(), Contains(), GetMinimum(), Overlaps(), Overlaps(), and UpdateBounds().

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

• BoundingBox2D.h
• BoundingBox2D.cpp