MBoundingBox Class Reference

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Detailed Description

Implementation of a 3D bounding box.

This class provides an implementation of a bounding box. A bounding box describes a volume in space that bounds a piece of geometry. The box is defined by two points which describe the minimum and maximum corners of the box.

Examples:

apiMeshShape.cpp, apiMeshShape.h, apiMeshShapeUI.cpp, curvedArrowsNode.cpp, D3DViewportRenderer.cpp, D3DViewportRenderer.h, footPrintManip.cpp, footPrintNode.cpp, hwPhongShader.cpp, OpenGLViewportRenderer.cpp, OpenGLViewportRenderer.h, quadricShape.cpp, simpleFluidEmitter.cpp, and swissArmyManip.cpp.

#include <MBoundingBox.h>

List of all members.

Public Member Functions
	MBoundingBox ()
	Default constructor.
	MBoundingBox (const MBoundingBox &src)
	Copy constructor.
	MBoundingBox (const MPoint &corner1, const MPoint &corner2)
	Constructor that creates a bounding box which contains the given points.
	~MBoundingBox ()
	Class destructor.
void	clear ()
	Empties the current bounding box.
void	transformUsing (const MMatrix &matrix)
	Apply the given transformation to this bounding box.
void	expand (const MPoint &point)
	Expand the bounding box to include the given point.
void	expand (const MBoundingBox &box)
	Expand the bounding box to include a second bounding box.
bool	contains (const MPoint &point) const
	Returns true if the bounding box contains the given point.
bool	intersects (const MBoundingBox &box, double tol=0.0) const
	Returns true if the bounding box intersects another given bounding box.
double	width () const
	Returns the width of the bounding box.
double	height () const
	Returns the height of the bounding box.
double	depth () const
	Returns the depth of the bounding box.
MPoint	center () const
	Returns the center of the bounding box.
MPoint	min () const
	Returns the minimum point for the bounding box.
MPoint	max () const
	Returns the maximum point for the bounding box.
MBoundingBox &	operator= (const MBoundingBox &other)
	Assignment operator. Search for all occurrences

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Constructor & Destructor Documentation

MBoundingBox

(

)

Default constructor.

Creates an empty bounding box.

MBoundingBox

(

const MBoundingBox &

src

)

Copy constructor.

Parameters:

[in]

src

bounding box to copy

MBoundingBox	(	const MPoint &	corner1,
		const MPoint &	corner2
	)

Constructor that creates a bounding box which contains the given points.

Each point will represent one corner of the box.

Parameters:

[in]	corner1	first corner point
[in]	corner2	second corner point

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Member Function Documentation

void transformUsing

(

const MMatrix &

matrix

)

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Apply the given transformation to this bounding box.

Parameters:

[in]

matrix

transformation matrix

Examples:

simpleFluidEmitter.cpp.

void expand

(

const MPoint &

point

)

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Expand the bounding box to include the given point.

Parameters:

[in]

point

new point to include in the bounding box.

Examples:

curvedArrowsNode.cpp, and quadricShape.cpp.

void expand

(

const MBoundingBox &

box

)

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Expand the bounding box to include a second bounding box.

Parameters:

[in]

box

bounding box to include in this bounding box.

bool contains

(

const MPoint &

point

)

const

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Returns true if the bounding box contains the given point.

Parameters:

[in]

point

point to check for inclusion in this bounding box

Returns:

true if the point is contained in this bounding box

bool intersects	(	const MBoundingBox &	box,
		double	tol = 0.0
	)		const

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Returns true if the bounding box intersects another given bounding box.

Parameters:

[in]	box	bounding box to check for intersection
[in]	tol	tolerance of the intersection check

Returns:

true if the bounding boxes intersect

double width

(

)

const

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Returns the width of the bounding box.

Returns:

The width of the bounding box

Examples:

apiMeshShapeUI.cpp.

double height

(

)

const

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Returns the height of the bounding box.

Returns:

The height of the bounding box

Examples:

apiMeshShapeUI.cpp.

double depth

(

)

const

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Returns the depth of the bounding box.

Returns:

The depth of the bounding box

Examples:

apiMeshShapeUI.cpp.

MPoint center

(

)

const

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Returns the center of the bounding box.

Returns:

The center of the bounding box

MPoint min

(

)

const

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Returns the minimum point for the bounding box.

That is the point whose x, y, and z components represent the bounding box's minimum value in each dimension.

Returns:

The minimum point of the bounding box

Examples:

apiMeshShapeUI.cpp, D3DViewportRenderer.cpp, hwPhongShader.cpp, OpenGLViewportRenderer.cpp, and simpleFluidEmitter.cpp.

MPoint max

(

)

const

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Returns the maximum point for the bounding box.

That is the point whose x, y, and z components represent the bounding box's maximum value in each dimension.

Returns:

The maximum point of the bounding box

Examples:

D3DViewportRenderer.cpp, hwPhongShader.cpp, OpenGLViewportRenderer.cpp, and simpleFluidEmitter.cpp.

MBoundingBox & operator=

(

const MBoundingBox &

other

)

Assignment operator.

Parameters:

[in]

other

bounding box to take value from

Returns:

Reference to this bounding box