Abstract class for computation of the min distance between some Object and elements of BVH tree. To use this class it is required to define two methods: More...

#include <BVH_Distance.hxx>

Inheritance diagram for BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >:

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Public Member Functions
Constructor
	BVH_Distance ()
	Constructor.

Setting object for distance computation
void	SetObject (const ObjectType &theObject)
	Sets the object to which the distance is required.

Compute the distance
NumType	ComputeDistance ()
	Computes the distance between object and BVH tree.

Accessing the results
Standard_Boolean	IsDone () const
	Returns IsDone flag.

NumType	Distance () const
	Returns the computed distance.

Definition of the rules for tree descend
virtual Standard_Boolean	IsMetricBetter (const NumType &theLeft, const NumType &theRight) const override
	Compares the two metrics and chooses the best one.

virtual Standard_Boolean	RejectMetric (const NumType &theMetric) const override
	Rejects the branch by the metric.

virtual Standard_Boolean	Stop () const override
	Returns the flag controlling the tree descend.

Public Member Functions inherited from BVH_Traverse< NumType, Dimension, BVHSetType, NumType >
	BVH_Traverse ()
	Constructor.

void	SetBVHSet (BVHSetType *theBVHSet)
	Sets the BVH Set containing the BVH tree.

virtual Standard_Boolean	AcceptMetric (const NumType &) const
	Basing on the given metric, checks if the whole branch may be accepted without any further checks. Returns true if the metric is accepted, false otherwise.

virtual Standard_Boolean	RejectNode (const BVH_VecNt &theCornerMin, const BVH_VecNt &theCornerMax, NumType &theMetric) const=0
	Rejection of the node by bounding box. Metric is computed to choose the best branch. Returns true if the node should be rejected, false otherwise.

virtual Standard_Boolean	Accept (const Standard_Integer theIndex, const NumType &theMetric)=0
	Leaf element acceptance. Metric of the parent leaf-node is passed to avoid the check on the element and accept it unconditionally. Returns true if the element has been accepted, false otherwise.

Standard_Integer	Select ()
	Selection of the elements from the BVH tree by the rules defined in Accept/Reject methods. The method requires the BVHSet containing BVH tree to be set. Returns the number of accepted elements.

Standard_Integer	Select (const opencascade::handle< BVH_Tree< NumType, Dimension > > &theBVH)
	Performs selection of the elements from the BVH tree by the rules defined in Accept/Reject methods. Returns the number of accepted elements.

Public Member Functions inherited from BVH_BaseTraverse< NumType >

Protected Attributes
Fields
NumType	myDistance
	Distance.

Standard_Boolean	myIsDone
	State of the algorithm.

ObjectType	myObject
	Object to compute the distance to.

Protected Attributes inherited from BVH_Traverse< NumType, Dimension, BVHSetType, NumType >
BVHSetType *	myBVHSet

Additional Inherited Members
Public Types inherited from BVH_Traverse< NumType, Dimension, BVHSetType, NumType >
typedef BVH_Box< NumType, Dimension >::BVH_VecNt	BVH_VecNt

Protected Member Functions inherited from BVH_BaseTraverse< NumType >
	BVH_BaseTraverse ()
	Constructor.

virtual	~BVH_BaseTraverse ()
	Destructor.

Detailed Description

template<class NumType, int Dimension, class ObjectType, class BVHSetType>
class BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >

Abstract class for computation of the min distance between some Object and elements of BVH tree. To use this class it is required to define two methods:

RejectNode to compute distance from the object to bounding box
Accept to compute distance from the object to the element of tree

Template Parameters

NumType	Numeric data type
Dimension	Vector dimension
ObjectType	Type of the object to which the distance is required
BVHSetType	Type of the set on which BVH is built

Constructor & Destructor Documentation

◆ BVH_Distance()

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::BVH_Distance ( )

inline

Constructor.

Member Function Documentation

◆ ComputeDistance()

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

NumType BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::ComputeDistance ( )

inline

Computes the distance between object and BVH tree.

◆ Distance()

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

NumType BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::Distance ( ) const

inline

Returns the computed distance.

◆ IsDone()

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

Standard_Boolean BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::IsDone ( ) const

inline

Returns IsDone flag.

◆ IsMetricBetter()

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

virtual Standard_Boolean BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::IsMetricBetter	(	const NumType &	theLeft,
		const NumType &	theRight ) const

inlineoverridevirtual

Compares the two metrics and chooses the best one.

Reimplemented from BVH_BaseTraverse< NumType >.

◆ RejectMetric()

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

virtual Standard_Boolean BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::RejectMetric ( const NumType & theMetric ) const

inlineoverridevirtual

Rejects the branch by the metric.

Reimplemented from BVH_BaseTraverse< NumType >.

◆ SetObject()

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

void BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::SetObject ( const ObjectType & theObject )

inline

Sets the object to which the distance is required.

◆ Stop()

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

virtual Standard_Boolean BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::Stop ( ) const

inlineoverridevirtual

Returns the flag controlling the tree descend.

Reimplemented from BVH_BaseTraverse< NumType >.

Field Documentation

◆ myDistance

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

NumType BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::myDistance

protected

Distance.

◆ myIsDone

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

Standard_Boolean BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::myIsDone

protected

State of the algorithm.

◆ myObject

template<class NumType , int Dimension, class ObjectType , class BVHSetType >

ObjectType BVH_Distance< NumType, Dimension, ObjectType, BVHSetType >::myObject

protected

Object to compute the distance to.

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

BVH_Distance.hxx

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ BVH_Distance()

Member Function Documentation

◆ ComputeDistance()

◆ Distance()

◆ IsDone()

◆ IsMetricBetter()

◆ RejectMetric()

◆ SetObject()

◆ Stop()

Field Documentation

◆ myDistance

◆ myIsDone

◆ myObject