#include <GeomQueryTool.hpp>

Collaboration diagram for moab::GeomQueryTool::RayHistory:

Public Member Functions
void	reset ()
void	reset_to_last_intersection ()
void	rollback_last_intersection ()
ErrorCode	get_last_intersection (EntityHandle &last_facet_hit) const
int	size () const
bool	in_history (EntityHandle ent) const
void	add_entity (EntityHandle ent)
Private Attributes
std::vector< EntityHandle >	prev_facets
Friends
class	GeomQueryTool

Detailed Description

Definition at line 61 of file GeomQueryTool.hpp.

Member Function Documentation

void moab::GeomQueryTool::RayHistory::add_entity ( EntityHandle ent )

Add entity to the RayHistory

Definition at line 734 of file GeomQueryTool.cpp.

{
    prev_facets.push_back( ent );
}

ErrorCode moab::GeomQueryTool::RayHistory::get_last_intersection ( EntityHandle & last_facet_hit ) const

Get the last intersection in the RayHistory. This will return a null EntityHandle (0) if the history is empty.

Definition at line 716 of file GeomQueryTool.cpp.

References MB_ENTITY_NOT_FOUND, and MB_SUCCESS.

{
    if( prev_facets.size() > 0 )
    {
        last_facet_hit = prev_facets.back();
        return MB_SUCCESS;
    }
    else
    {
        return MB_ENTITY_NOT_FOUND;
    }
}

bool moab::GeomQueryTool::RayHistory::in_history ( EntityHandle ent ) const

Returns:: Boolean indicating if this entity is in the RayHistory

Definition at line 729 of file GeomQueryTool.cpp.

{
    return std::find( prev_facets.begin(), prev_facets.end(), ent ) != prev_facets.end();
}

void moab::GeomQueryTool::RayHistory::reset ( )

Clear this entire history-- logically equivalent to creating a new history, but probably more efficient.

Definition at line 696 of file GeomQueryTool.cpp.

References prev_facets.

{
    prev_facets.clear();
}

void moab::GeomQueryTool::RayHistory::reset_to_last_intersection ( )

Clear the history up to the most recent intersection. This should be called when a ray changes direction at the site of a surface crossing, a situation that most commonly occurs at a reflecting boundary.

Definition at line 701 of file GeomQueryTool.cpp.

{

    if( prev_facets.size() > 1 )
    {
        prev_facets[0] = prev_facets.back();
        prev_facets.resize( 1 );
    }
}

void moab::GeomQueryTool::RayHistory::rollback_last_intersection ( )

Remove the most recent intersection. This allows a subsequent call along the same ray to return the same intersection.

Definition at line 711 of file GeomQueryTool.cpp.

{
    if( prev_facets.size() ) prev_facets.pop_back();
}

int moab::GeomQueryTool::RayHistory::size ( ) const [inline]

Returns:: the number of surface crossings currently represented by this ray history

Definition at line 93 of file GeomQueryTool.hpp.

References prev_facets.

        {
            return prev_facets.size();
        }

Friends And Related Function Documentation

friend class GeomQueryTool [friend]

Definition at line 111 of file GeomQueryTool.hpp.

Member Data Documentation

std::vector< EntityHandle > moab::GeomQueryTool::RayHistory::prev_facets [private]

Definition at line 109 of file GeomQueryTool.hpp.

Referenced by moab::GeomQueryTool::get_normal(), moab::GeomQueryTool::point_in_volume(), moab::GeomQueryTool::ray_fire(), reset(), size(), and moab::GeomQueryTool::test_volume_boundary().

List of all members.

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

Public Member Functions

Private Attributes

Friends

Detailed Description

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation