TBBox3D Class Reference
[Data Structures]

Inheritance diagram for TBBox3D:

List of all members.

Public Member Functions
	TBBox3D ()
	TBBox3D (const TVector3 &min, const TVector3 &max)
	TBBox3D (const TVector3 &max)
void	Init ()
	Sets fMin and fMax to TVector3::kZero.
void	SetMax (const TVector3 &max)
	Setter function for fMax.
void	SetMin (const TVector3 &min)
	Setter function for fMin.
void	GetCenter (TVector3 &center) const
void	GetDelta (TVector3 &delta) const
real	GetMax () const
real	GetVolume () const
	Returns the volume of the box.
boolean	IsEmpty () const
boolean	IsFlat () const
void	AddPoint (const TVector3 &PP)
void	Inset (const TVector3 &PP)
TVector3	operator[] (int16 ii) const
void	operator+= (const TBBox3D &box)
void	FixInvertedFields ()
void	GetPoint (int16 index, TVector3 &PP) const
boolean	IsInside (const TVector3 &point) const
	Returns true if the point is inside the box.
boolean	Valid () const
	Returns true if every coordinate of fMin is smaller than its fMax counterpart.
boolean	Intersect (const TBBox3D &boundingBox) const
real	GetWidth () const
	Returns the width (in x) of the box.
real	GetHeight () const
	Returns the height (in y) of the box.
real	GetDepth (void) const
	Returns the depth (in z) of the box.
Public Attributes
TVector3	fMin
	The lower corner of the box.
TVector3	fMax
	The upper corner of the box.

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Detailed Description

TBBox3D defines a three dimentional bounding box. It uses two TVector3 to store the lower (fMin) and the upper (fMax) corners of the rectangle

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Constructor & Destructor Documentation

TBBox3D::TBBox3D (   )

Default constructor: fMin is initialized with kRealMax, fMax with kRealMin

TBBox3D::TBBox3D (  const TVector3 &  min, const TVector3 &  max )

Init constructor Parameters: min  initial value for fMin. max  initial value for fMax.

TBBox3D::TBBox3D (  const TVector3 &  max  )

Init constructor Parameters: max  initial value for fMax. fMin is initialized with -max

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Member Function Documentation

void TBBox3D::AddPoint (  const TVector3 &  PP  )

Expands the box to encompass the given point Parameters: PP  the point to add to the box

void TBBox3D::FixInvertedFields (   )

if (fMin .x > fMax .x) {fMin .x= fMax .x= kRealZero;} and same for y

void TBBox3D::GetCenter (  TVector3 &  center  )  const

Computes the center of the box Parameters: center  the return value for the center of the box

void TBBox3D::GetDelta (  TVector3 &  delta  )  const

Computes the main diagonal of the box (fMax - fMin) Parameters: delta  the return value

real TBBox3D::GetDepth (  void   )  const [inline]

Returns the depth (in z) of the box.

real TBBox3D::GetHeight (   )  const [inline]

Returns the height (in y) of the box.

real TBBox3D::GetMax (   )  const

Returns the bigger coordinate of the diagonal

void TBBox3D::GetPoint (  int16  index, TVector3 &  PP )  const

Returns the coordinates of one of the corners of the box Parameters: index  the corner index ( 0<=index<8 ) PP  the returned corner coordinates

real TBBox3D::GetVolume (   )  const

Returns the volume of the box.

real TBBox3D::GetWidth (   )  const [inline]

Returns the width (in x) of the box.

void TBBox3D::Init (  void   )  [inline]

Sets fMin and fMax to TVector3::kZero.

void TBBox3D::Inset (  const TVector3 &  PP  )

Shrinks the box by adding PP to fMin, and substracting it from fMax Parameters: PP  the amount to shrink the box with

boolean TBBox3D::Intersect (  const TBBox3D &  boundingBox  )  const

Returns true if the two boxes intersect Parameters: boundingBox  the box to test for intersection with this box

boolean TBBox3D::IsEmpty (   )  const

Returns true if the box is empty

boolean TBBox3D::IsFlat (   )  const

Returns true if the box is flat

boolean TBBox3D::IsInside (  const TVector3 &  point  )  const

Returns true if the point is inside the box.

void TBBox3D::operator+= (  const TBBox3D &  box  )

Expands the box to encompass the given box Parameters: box  the box to add to this box

TVector3 TBBox3D::operator[] (  int16  ii  )  const

Returns one of the corners of the box (or its center) 2_____6 Z 3/|___7/| ^ | | | | |-->Y |/0---|/4 / 1_____5 X Parameters: ii  the corner index. For values between 0 and 7 retruns the point shown in the diagram above. For 8 returns the center. Otherwise zero is returned.

void TBBox3D::SetMax (  const TVector3 &  max  )  [inline]

Setter function for fMax.

void TBBox3D::SetMin (  const TVector3 &  min  )  [inline]

Setter function for fMin.

boolean TBBox3D::Valid (   )  const [inline]

Returns true if every coordinate of fMin is smaller than its fMax counterpart.

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Member Data Documentation

TVector3 TBBox3D::fMax

The upper corner of the box.

TVector3 TBBox3D::fMin

The lower corner of the box.

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

• TBBox.h

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