#include <OPC_TreeBuilders.h>

Inheritance diagram for AABBTreeBuilder:

Public Member Functions
	AABBTreeBuilder ()
	Constructor. More...

virtual	~AABBTreeBuilder ()
	Destructor. More...

virtual bool	ComputeGlobalBox (const udword *primitives, udword nb_prims, AABB &global_box) const =0

virtual float	GetSplittingValue (udword index, udword axis) const =0

virtual float	GetSplittingValue (const udword *, udword, const AABB &global_box, udword axis) const

virtual BOOL	ValidateSubdivision (const udword *, udword nb_prims, const AABB &)

inline_ void	SetCount (udword nb)

inline_ void	IncreaseCount (udword nb)

inline_ udword	GetCount () const

inline_ void	SetNbInvalidSplits (udword nb)

inline_ void	IncreaseNbInvalidSplits ()

inline_ udword	GetNbInvalidSplits () const

Public Attributes
BuildSettings	mSettings
	Splitting rules & split limit [Opcode 1.3]. More...

udword	mNbPrimitives
	Total number of primitives. More...

void *	mNodeBase
	Address of node pool [Opcode 1.3]. More...

Detailed Description

Definition at line 47 of file OPC_TreeBuilders.h.

Constructor & Destructor Documentation

AABBTreeBuilder::AABBTreeBuilder ( )

inline

Constructor.

Definition at line 51 of file OPC_TreeBuilders.h.

                                                                       :
                                                         mNbPrimitives(0),
                                                         mNodeBase(null),
                                                         mCount(0),
                                                         mNbInvalidSplits(0)     {}

virtual AABBTreeBuilder::~AABBTreeBuilder ( )

inlinevirtual

Destructor.

Definition at line 57 of file OPC_TreeBuilders.h.

57 {}

Member Function Documentation

virtual bool AABBTreeBuilder::ComputeGlobalBox	(	const udword *	primitives,
		udword	nb_prims,
		AABB &	global_box
	)		const

pure virtual

Computes the AABB of a set of primitives.

Parameters

primitives	[in] list of indices of primitives
nb_prims	[in] number of indices
global_box	[out] global AABB enclosing the set of input primitives

Returns: true if success

inline_ udword AABBTreeBuilder::GetCount ( ) const

inline

Definition at line 119 of file OPC_TreeBuilders.h.

119 { return mCount; }

inline_ udword AABBTreeBuilder::GetNbInvalidSplits ( ) const

inline

Definition at line 122 of file OPC_TreeBuilders.h.

122 { return mNbInvalidSplits; }

virtual float AABBTreeBuilder::GetSplittingValue	(	udword	index,
		udword	axis
	)		const

pure virtual

Computes the splitting value along a given axis for a given primitive.

Parameters

index	[in] index of the primitive to split
axis	[in] axis index (0,1,2)

Returns: splitting value

virtual float AABBTreeBuilder::GetSplittingValue	(	const udword *	,
		udword	,
		const AABB &	global_box,
		udword	axis
	)		const

inlinevirtual

Computes the splitting value along a given axis for a given node.

Parameters

primitives	[in] list of indices of primitives
nb_prims	[in] number of indices
global_box	[in] global AABB enclosing the set of input primitives
axis	[in] axis index (0,1,2)

Returns: splitting value

Definition at line 90 of file OPC_TreeBuilders.h.

                                                     {
                                                         // Default split value = middle of the axis (using only the box)
                                                         return global_box.GetCenter(axis);
                                                     }

inline_ void AABBTreeBuilder::IncreaseCount ( udword nb)

inline

Definition at line 118 of file OPC_TreeBuilders.h.

118 { mCount+=nb; }

inline_ void AABBTreeBuilder::IncreaseNbInvalidSplits ( )

inline

Definition at line 121 of file OPC_TreeBuilders.h.

121 { mNbInvalidSplits++; }

inline_ void AABBTreeBuilder::SetCount ( udword nb)

inline

Definition at line 117 of file OPC_TreeBuilders.h.

117 { mCount=nb; }

inline_ void AABBTreeBuilder::SetNbInvalidSplits ( udword nb)

inline

Definition at line 120 of file OPC_TreeBuilders.h.

120 { mNbInvalidSplits=nb; }

virtual BOOL AABBTreeBuilder::ValidateSubdivision	(	const udword *	,
		udword	nb_prims,
		const AABB &
	)

inlinevirtual

Validates node subdivision. This is called each time a node is considered for subdivision, during tree building.

Parameters

primitives	[in] list of indices of primitives
nb_prims	[in] number of indices
global_box	[in] global AABB enclosing the set of input primitives

Returns: TRUE if the node should be subdivised

Definition at line 105 of file OPC_TreeBuilders.h.

                                                     {
                                                         // Check the user-defined limit
                                                         if(nb_prims<=mSettings.mLimit)  return FALSE;
 
                                                         return TRUE;
                                                     }

Member Data Documentation

udword AABBTreeBuilder::mNbPrimitives

Total number of primitives.

Definition at line 114 of file OPC_TreeBuilders.h.

void* AABBTreeBuilder::mNodeBase

Address of node pool [Opcode 1.3].

Definition at line 115 of file OPC_TreeBuilders.h.

BuildSettings AABBTreeBuilder::mSettings

Splitting rules & split limit [Opcode 1.3].

Definition at line 113 of file OPC_TreeBuilders.h.

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

src/cmd/collide2/OPC_TreeBuilders.h

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation