moab::RayIntersectSets Class Reference

Inheritance diagram for moab::RayIntersectSets:

Collaboration diagram for moab::RayIntersectSets:

Public Member Functions
	RayIntersectSets (OrientedBoxTreeTool *tool_ptr, const double *ray_point, const double *unit_ray_dir, const double tolerance, OrientedBoxTreeTool::IntersectSearchWindow &win, unsigned int *ray_tri_test_count, OrientedBoxTreeTool::IntRegCtxt &intRegCallback)
virtual ErrorCode	visit (EntityHandle node, int depth, bool &descend)
	Visit a node in the tree during a traversal. More...
virtual ErrorCode	leaf (EntityHandle node)
	Process a leaf node during tree traversal. More...
Public Member Functions inherited from moab::OrientedBoxTreeTool::Op
virtual	~Op ()

Private Attributes
OrientedBoxTreeTool *	tool
const CartVect	ray_origin
const CartVect	ray_direction
OrientedBoxTreeTool::IntersectSearchWindow &	search_win
const double	tol
OrientedBoxTreeTool::IntRegCtxt &	int_reg_callback
int *	surfTriOrient
int	surfTriOrient_val
unsigned int *	raytri_test_count
EntityHandle	lastSet
int	lastSetDepth

Detailed Description

Definition at line 888 of file OrientedBoxTreeTool.cpp.

Constructor & Destructor Documentation

RayIntersectSets()

moab::RayIntersectSets::RayIntersectSets ( OrientedBoxTreeTool *  tool_ptr, const double *  ray_point, const double *  unit_ray_dir, const double  tolerance, OrientedBoxTreeTool::IntersectSearchWindow &  win, unsigned int *  ray_tri_test_count, OrientedBoxTreeTool::IntRegCtxt &  intRegCallback  )

inline

Definition at line 911 of file OrientedBoxTreeTool.cpp.

 : tool( tool_ptr ), ray_origin( ray_point ), ray_direction( unit_ray_dir ), search_win( win ), tol( tolerance ),
 int_reg_callback( intRegCallback ), surfTriOrient_val( 0 ), raytri_test_count( ray_tri_test_count ),
 lastSet( 0 ), lastSetDepth( 0 )
 {
 
 // specified orientation should be 1 or -1, indicating ray and surface
 // normal in the same or opposite directions, respectively.
 if( int_reg_callback.getDesiredOrient() )
 {
 surfTriOrient = &surfTriOrient_val;
 }
 else
 {
 surfTriOrient = NULL;
 }
 
 // check the limits
 if( search_win.first )
 {
 assert( 0 <= *( search_win.first ) );
 }
 if( search_win.second )
 {
 assert( 0 >= *( search_win.second ) );
 }
 };

References moab::OrientedBoxTreeTool::IntRegCtxt::getDesiredOrient().

Member Function Documentation

leaf()

ErrorCode moab::RayIntersectSets::leaf ( EntityHandle  node )

virtual

Process a leaf node during tree traversal.

Implements moab::OrientedBoxTreeTool::Op.

Definition at line 981 of file OrientedBoxTreeTool.cpp.

{
 assert( lastSet );
 if( !lastSet ) // if no surface has been visited yet, something's messed up.
 return MB_FAILURE;
 
#ifndef MB_OBB_USE_VECTOR_QUERIES
 Range tris;
#ifdef MB_OBB_USE_TYPE_QUERIES
 ErrorCode rval = tool->get_moab_instance()->get_entities_by_type( node, MBTRI, tris );
#else
 ErrorCode rval = tool->get_moab_instance()->get_entities_by_handle( node, tris );
#endif
#else
 std::vector< EntityHandle > tris;
 ErrorCode rval = tool->get_moab_instance()->get_entities_by_handle( node, tris );
#endif
 assert( MB_SUCCESS == rval );
 if( MB_SUCCESS != rval ) return rval;
 
#ifndef MB_OBB_USE_VECTOR_QUERIES
 for( Range::iterator t = tris.begin(); t != tris.end(); ++t )
#else
 for( std::vector< EntityHandle >::iterator t = tris.begin(); t != tris.end(); ++t )
#endif
 {
#ifndef MB_OBB_USE_TYPE_QUERIES
 if( TYPE_FROM_HANDLE( *t ) != MBTRI ) continue;
#endif
 
 const EntityHandle* conn;
 int num_conn;
 rval = tool->get_moab_instance()->get_connectivity( *t, conn, num_conn, true );
 assert( MB_SUCCESS == rval );
 if( MB_SUCCESS != rval ) return rval;
 
 CartVect coords[3];
 rval = tool->get_moab_instance()->get_coords( conn, 3, coords[0].array() );
 assert( MB_SUCCESS == rval );
 if( MB_SUCCESS != rval ) return rval;
 
 if( raytri_test_count ) *raytri_test_count += 1;
 
 double int_dist;
 GeomUtil::intersection_type int_type = GeomUtil::NONE;
 
 if( GeomUtil::plucker_ray_tri_intersect( coords, ray_origin, ray_direction, int_dist, search_win.first,
 search_win.second, surfTriOrient, &int_type ) )
 {
 int_reg_callback.register_intersection( lastSet, *t, int_dist, search_win, int_type );
 }
 }
 return MB_SUCCESS;
}

References moab::Range::begin(), moab::Range::end(), ErrorCode, MB_SUCCESS, MBTRI, moab::GeomUtil::NONE, moab::GeomUtil::plucker_ray_tri_intersect(), t, and moab::TYPE_FROM_HANDLE().

visit()

ErrorCode moab::RayIntersectSets::visit ( EntityHandle  node, int  depth, bool &  descend  )

virtual

Visit a node in the tree during a traversal.

This method is called for each node in the tree visited during a pre-order traversal.

Parameters

node	The EntityHandle for the entity set for the tree node.
depth	The current depth in the tree.
descend	Output: if false, traversal will skip children of the current node, or if the current node is a leaf, the 'leaf' method will not be called.

Implements moab::OrientedBoxTreeTool::Op.

Definition at line 949 of file OrientedBoxTreeTool.cpp.

{
 OrientedBox box;
 ErrorCode rval = tool->box( node, box );
 assert( MB_SUCCESS == rval );
 if( MB_SUCCESS != rval ) return rval;
 
 descend = box.intersect_ray( ray_origin, ray_direction, tol, search_win.first, search_win.second );
 
 if( lastSet && depth <= lastSetDepth ) lastSet = 0;
 
 if( descend && !lastSet )
 {
 Range tmp_sets;
 rval = tool->get_moab_instance()->get_entities_by_type( node, MBENTITYSET, tmp_sets );
 assert( MB_SUCCESS == rval );
 if( MB_SUCCESS != rval ) return rval;
 
 if( !tmp_sets.empty() )
 {
 if( tmp_sets.size() > 1 ) return MB_FAILURE;
 lastSet = *tmp_sets.begin();
 lastSetDepth = depth;
 
 rval = int_reg_callback.update_orient( lastSet, surfTriOrient );
 if( MB_SUCCESS != rval ) return rval;
 }
 }
 
 return MB_SUCCESS;
}

References moab::Range::begin(), moab::OrientedBoxTreeTool::box(), moab::Range::empty(), ErrorCode, MB_SUCCESS, MBENTITYSET, and moab::Range::size().

Member Data Documentation

int_reg_callback

OrientedBoxTreeTool::IntRegCtxt& moab::RayIntersectSets::int_reg_callback

private

Definition at line 899 of file OrientedBoxTreeTool.cpp.

lastSet

EntityHandle moab::RayIntersectSets::lastSet

private

Definition at line 907 of file OrientedBoxTreeTool.cpp.

lastSetDepth

int moab::RayIntersectSets::lastSetDepth

private

Definition at line 908 of file OrientedBoxTreeTool.cpp.

ray_direction

const CartVect moab::RayIntersectSets::ray_direction

private

Definition at line 894 of file OrientedBoxTreeTool.cpp.

ray_origin

const CartVect moab::RayIntersectSets::ray_origin

private

Definition at line 893 of file OrientedBoxTreeTool.cpp.

raytri_test_count

unsigned int* moab::RayIntersectSets::raytri_test_count

private

Definition at line 906 of file OrientedBoxTreeTool.cpp.

search_win

OrientedBoxTreeTool::IntersectSearchWindow& moab::RayIntersectSets::search_win

private

Definition at line 895 of file OrientedBoxTreeTool.cpp.

surfTriOrient

int* moab::RayIntersectSets::surfTriOrient

private

Definition at line 902 of file OrientedBoxTreeTool.cpp.

surfTriOrient_val

int moab::RayIntersectSets::surfTriOrient_val

private

Definition at line 903 of file OrientedBoxTreeTool.cpp.

tol

const double moab::RayIntersectSets::tol

private

Definition at line 896 of file OrientedBoxTreeTool.cpp.

tool

OrientedBoxTreeTool* moab::RayIntersectSets::tool

private

Definition at line 892 of file OrientedBoxTreeTool.cpp.

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

• OrientedBoxTreeTool.cpp