This structure implements a tree node inside an AABB collision tree.

#include <CCollisionAABBTree.h>

Public Member Functions
	cCollisionAABBNode ()
	Constructor of cCollisionAABBNode. More...

virtual	~cCollisionAABBNode ()
	Destructor of cCollisionAABBNode. More...

void	fitBBox (double a_radius, cVector3d &a_vertex0)
	This method creates a boundary box for a point. More...

void	fitBBox (double a_radius, cVector3d &a_vertex0, cVector3d &a_vertex1)
	This method creates a boundary box for a segment. More...

void	fitBBox (double a_radius, cVector3d &a_vertex0, cVector3d &a_vertex1, cVector3d &a_vertex2)
	This method creates a boundary box for a triangle. More...

void	render (int a_depth=-1)
	This method draws the edges of the boundary box for this node, if at the given depth. More...

bool	computeCollision (cGenericObject *a_owner, cVector3d &a_segmentPointA, cVector3d &a_segmentDirection, cCollisionAABBBox &a_lineBox, cCollisionRecorder &a_recorder, cCollisionSettings &a_settings)
	This method determines whether a line segment intersects any elements covered by this node. More...

Public Attributes
cCollisionAABBBox	m_bbox
	Bounding box for this node. More...

int	m_depth
	Depth of this node in the collision tree. More...

cAABBNodeType	m_nodeType
	Node type. More...

int	m_leftSubTree
	Left child node index. More...

int	m_rightSubTree
	Right child node index. More...

Constructor & Destructor Documentation

chai3d::cCollisionAABBNode::cCollisionAABBNode ( )

Constructor of cCollisionAABBNode.

virtual chai3d::cCollisionAABBNode::~cCollisionAABBNode ( )

inlinevirtual

Member Function Documentation

void chai3d::cCollisionAABBNode::fitBBox	(	double	a_radius,
		cVector3d &	a_vertex0
	)

This method creates a boundary box to enclose a point belonging to the leaf node.

Parameters

a_radius	Radius around the point.
a_vertex0	Vertex 0.

void chai3d::cCollisionAABBNode::fitBBox	(	double	a_radius,
		cVector3d &	a_vertex0,
		cVector3d &	a_vertex1
	)

This method creates a boundary box to enclose the two vertices of a segment belonging to the leaf node.

Parameters

a_radius	Radius around the segment.
a_vertex0	Vertex 0.
a_vertex1	Vertex 1.

void chai3d::cCollisionAABBNode::fitBBox	(	double	a_radius,
		cVector3d &	a_vertex0,
		cVector3d &	a_vertex1,
		cVector3d &	a_vertex2
	)

This method creates a boundary box to enclose the three vertices of a triangle belonging to the leaf node.

Parameters

a_radius	Radius around the element.
a_vertex0	Vertex 0.
a_vertex1	Vertex 1.
a_vertex2	Vertex 2.

void chai3d::cCollisionAABBNode::render ( int a_depth = -1 )

This method draws the edges of the boundary box for an internal tree node if it is at depth a_depth in the tree, and calls the draw function for its children.

Parameters

a_depth If a_depth > 0, then only draw nodes at this level in the tree. If a_depth < 0 render all nodes up to this level.

bool chai3d::cCollisionAABBNode::computeCollision	(	cGenericObject *	a_owner,
		cVector3d &	a_segmentPointA,
		cVector3d &	a_segmentDirection,
		cCollisionAABBBox &	a_lineBox,
		cCollisionRecorder &	a_recorder,
		cCollisionSettings &	a_settings
	)

Member Data Documentation

cCollisionAABBBox chai3d::cCollisionAABBNode::m_bbox

int chai3d::cCollisionAABBNode::m_depth

cAABBNodeType chai3d::cCollisionAABBNode::m_nodeType

int chai3d::cCollisionAABBNode::m_leftSubTree

int chai3d::cCollisionAABBNode::m_rightSubTree

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

Public Member Functions

Public Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation