class TAttBBox

 TAttBBox

 Helper for management of bounding-box information.
 Optionally used by classes that use direct OpenGL rendering
 via <Class>GL class.

Function Members (Methods)

This is an abstract class, constructors will not be documented.
Look at the header to check for available constructors.

public:

virtual	~TAttBBox()
Float_t*	AssertBBox()
static TClass*	Class()
virtual void	ComputeBBox()
Float_t*	GetBBox()
Bool_t	GetBBoxOK() const
virtual TClass*	IsA() const
TAttBBox&	operator=(const TAttBBox& tab)
void	ResetBBox()
virtual void	ShowMembers(TMemberInspector& insp, char* parent)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)

protected:

void	AssertBBoxExtents(Float_t epsilon = 0.005)
void	BBoxCheckPoint(const Float_t* p)
void	BBoxCheckPoint(Float_t x, Float_t y, Float_t z)
void	BBoxClear()
void	BBoxInit(Float_t infinity = 1e6)
void	BBoxZero(Float_t epsilon = 0, Float_t x = 0, Float_t y = 0, Float_t z = 0)

Data Members

protected:

Float_t*	fBBox	! Dynamic Float_t[6] X(min,max), Y(min,max), Z(min,max)

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

void BBoxInit(Float_t infinity = 1e6)

 Allocate and prepare for incremental filling.

void BBoxZero(Float_t epsilon = 0, Float_t x = 0, Float_t y = 0, Float_t z = 0)

 Create cube of volume (2*epsiolon)^3 at (x,y,z).
 epsilon iz zero by default.

void BBoxClear()

 Remove BBox information.

void AssertBBoxExtents(Float_t epsilon = 0.005)

 Assert extents of all sides of the bounding-box are at least epsilon.

void BBoxCheckPoint(Float_t x, Float_t y, Float_t z)

void BBoxCheckPoint(const Float_t* p)

virtual ~TAttBBox()

{ BBoxClear(); }

TAttBBox& operator=(const TAttBBox& tab)

Bool_t GetBBoxOK()

{ return fBBox != 0; }

Float_t* GetBBox()

{ return fBBox; }

Float_t* AssertBBox()

{ if(fBBox == 0) ComputeBBox(); return fBBox; }

void ResetBBox()

{ if(fBBox != 0) BBoxClear(); }

void ComputeBBox()

Author: Matevz Tadel 7/4/2006
Last update: root/base:$Name: $:$Id: TAttBBox.cxx,v 1.4 2006/12/09 23:01:13 rdm Exp $
Copyright (C) 1995-2006, Rene Brun and Fons Rademakers. *

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