ug::node_tree::Traverser_IntersectFaces Class Reference

traverses a node-tree and intersect a given face with the contained geometry. More...

#include <traverser_intersect_faces.h>

Inheritance diagram for ug::node_tree::Traverser_IntersectFaces:

Public Member Functions
void	clear_ignore_list ()
	clears the ignore list
const std::vector< CollisionElementID > &	get_intersected_element_ids () const
void	ignore_element (const CollisionElementID &elemID)
	adds an element to the ignore list
virtual bool	intersect_tri (const vector3 &v0, const vector3 &v1, const vector3 &v2, SPNode nodeGraph)
	intersects the given triangle with all faces in the given nodeGraph.
	Traverser_IntersectFaces ()
virtual	~Traverser_IntersectFaces ()

Protected Member Functions
virtual void	handle_boxed_group (BoxedGroupNode *boxedGroup)
virtual void	handle_collision_triangles (CollisionTrianglesNode *colTrisNode)
Protected Member Functions inherited from ug::node_tree::Traverser_CollisionTree
CollisionTreeRootNode *	get_current_root_node ()
virtual void	handle_collision_edges (CollisionEdgesNode *colEdgesNode)
virtual void	handle_collision_tree_root (CollisionTreeRootNode *colTreeRootNode)
	Traverser_CollisionTree ()
virtual	~Traverser_CollisionTree ()
Protected Member Functions inherited from ug::node_tree::Traverser
void	apply (SPNode &node)
virtual void	handle_group (GroupNode *group)
template<typename HandlerType >
void	register_handler_function (unsigned int oc, HandlerType func)
void	traverse_object (Object *obj)
	Traverser ()
virtual	~Traverser ()

Private Attributes
std::vector< CollisionElementID >	m_ignoreList
std::vector< CollisionElementID >	m_intersectedElementIDs
int	m_numVrts
vector3	m_vrts [4]

Detailed Description

traverses a node-tree and intersect a given face with the contained geometry.

Currently only triangles are supported.

Todo:

A list with local coordinates of intersections should be created during intersect_tri. This list should then be available to the user.

Constructor & Destructor Documentation

Traverser_IntersectFaces()

ug::node_tree::Traverser_IntersectFaces::Traverser_IntersectFaces

(

)

~Traverser_IntersectFaces()

ug::node_tree::Traverser_IntersectFaces::~Traverser_IntersectFaces ( )

virtual

Member Function Documentation

clear_ignore_list()

void ug::node_tree::Traverser_IntersectFaces::clear_ignore_list

(

)

clears the ignore list

References m_ignoreList.

get_intersected_element_ids()

const std::vector< CollisionElementID > & ug::node_tree::Traverser_IntersectFaces::get_intersected_element_ids

(

)

const

after the intersection with the geometry has been performed, this function returns the ids of the intersected elements.

References m_intersectedElementIDs.

handle_boxed_group()

void ug::node_tree::Traverser_IntersectFaces::handle_boxed_group ( BoxedGroupNode *  boxedGroup )

protectedvirtual

Reimplemented from ug::node_tree::Traverser.

References ug::node_tree::Traverser::handle_group(), m_vrts, ug::node_tree::BoxedGroupNode::max_corner(), ug::node_tree::BoxedGroupNode::min_corner(), and ug::TriangleBoxIntersection().

handle_collision_triangles()

void ug::node_tree::Traverser_IntersectFaces::handle_collision_triangles ( CollisionTrianglesNode *  colTrisNode )

protectedvirtual

Reimplemented from ug::node_tree::Traverser_CollisionTree.

References ug::find(), ug::node_tree::Traverser_CollisionTree::get_current_root_node(), ug::node_tree::CollisionTreeRootNode::get_points(), ug::node_tree::CollisionTrianglesNode::get_triangle_id(), ug::node_tree::CollisionTrianglesNode::get_triangles(), m_ignoreList, m_intersectedElementIDs, m_vrts, ug::node_tree::CollisionTrianglesNode::num_triangles(), and ug::TriangleTriangleIntersection().

ignore_element()

void ug::node_tree::Traverser_IntersectFaces::ignore_element

(

const CollisionElementID &

elemID

)

adds an element to the ignore list

Make sure that the ignore list won't get too big, since for each it has to be traversed for each triangle that intersects. Use clear_ignore_list to clear the list.

References m_ignoreList.

intersect_tri()

bool ug::node_tree::Traverser_IntersectFaces::intersect_tri ( const vector3 &  v0, const vector3 &  v1, const vector3 &  v2, SPNode  nodeGraph  )

virtual

intersects the given triangle with all faces in the given nodeGraph.

returns true if an intersection was found, false if not. After each run the intersected faces can be accessed using get_intersected_element_ids().

References ug::node_tree::Traverser::apply(), m_intersectedElementIDs, m_numVrts, and m_vrts.

Member Data Documentation

m_ignoreList

std::vector<CollisionElementID> ug::node_tree::Traverser_IntersectFaces::m_ignoreList

private

Referenced by clear_ignore_list(), handle_collision_triangles(), and ignore_element().

m_intersectedElementIDs

std::vector<CollisionElementID> ug::node_tree::Traverser_IntersectFaces::m_intersectedElementIDs

private

Referenced by get_intersected_element_ids(), handle_collision_triangles(), and intersect_tri().

m_numVrts

int ug::node_tree::Traverser_IntersectFaces::m_numVrts

private

Referenced by intersect_tri().

m_vrts

vector3 ug::node_tree::Traverser_IntersectFaces::m_vrts[4]

private

Referenced by handle_boxed_group(), handle_collision_triangles(), and intersect_tri().

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

• ugbase/common/node_tree/traversers/traverser_intersect_faces.h
• ugbase/common/node_tree/traversers/traverser_intersect_faces.cpp