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osgUtil::LineSegmentIntersector Class Reference

#include <LineSegmentIntersector>

Inheritance diagram for osgUtil::LineSegmentIntersector:
osgUtil::Intersector osg::Referenced

Classes

struct  Intersection
 

Public Types

typedef std::multiset< IntersectionIntersections
 
- Public Types inherited from osgUtil::Intersector
enum  CoordinateFrame { WINDOW , PROJECTION , VIEW , MODEL }
 
enum  IntersectionLimit { NO_LIMIT , LIMIT_ONE_PER_DRAWABLE , LIMIT_ONE , LIMIT_NEAREST }
 
enum  PrecisionHint { USE_DOUBLE_CALCULATIONS , USE_FLOAT_CALCULATIONS }
 

Public Member Functions

 LineSegmentIntersector (const osg::Vec3d &start, const osg::Vec3d &end)
 
 LineSegmentIntersector (CoordinateFrame cf, const osg::Vec3d &start, const osg::Vec3d &end, LineSegmentIntersector *parent=NULL, osgUtil::Intersector::IntersectionLimit intersectionLimit=osgUtil::Intersector::NO_LIMIT)
 
 LineSegmentIntersector (CoordinateFrame cf, double x, double y)
 
void insertIntersection (const Intersection &intersection)
 
IntersectionsgetIntersections ()
 
Intersection getFirstIntersection ()
 
void setStart (const osg::Vec3d &start)
 
const osg::Vec3dgetStart () const
 
void setEnd (const osg::Vec3d &end)
 
const osg::Vec3dgetEnd () const
 
virtual Intersectorclone (osgUtil::IntersectionVisitor &iv)
 
virtual bool enter (const osg::Node &node)
 
virtual void leave ()
 
virtual void intersect (osgUtil::IntersectionVisitor &iv, osg::Drawable *drawable)
 
virtual void intersect (osgUtil::IntersectionVisitor &iv, osg::Drawable *drawable, const osg::Vec3d &s, const osg::Vec3d &e)
 
virtual void reset ()
 
virtual bool containsIntersections ()
 
- Public Member Functions inherited from osgUtil::Intersector
 Intersector (CoordinateFrame cf=MODEL, IntersectionLimit il=NO_LIMIT)
 
void setCoordinateFrame (CoordinateFrame cf)
 
CoordinateFrame getCoordinateFrame () const
 
void setIntersectionLimit (IntersectionLimit limit)
 
IntersectionLimit getIntersectionLimit () const
 
bool disabled () const
 
void incrementDisabledCount ()
 
void decrementDisabledCount ()
 
bool reachedLimit ()
 
void setPrecisionHint (PrecisionHint hint)
 
PrecisionHint getPrecisionHint () const
 
- Public Member Functions inherited from osg::Referenced
 Referenced ()
 
 Referenced (bool threadSafeRefUnref)
 
 Referenced (const Referenced &)
 
Referencedoperator= (const Referenced &)
 
virtual void setThreadSafeRefUnref (bool)
 
bool getThreadSafeRefUnref () const
 
OpenThreads::MutexgetRefMutex () const
 
int ref () const
 
int unref () const
 
int unref_nodelete () const
 
int referenceCount () const
 
ObserverSetgetObserverSet () const
 
ObserverSetgetOrCreateObserverSet () const
 
void addObserver (Observer *observer) const
 
void removeObserver (Observer *observer) const
 

Static Public Member Functions

static osg::Matrix getTransformation (osgUtil::IntersectionVisitor &iv, CoordinateFrame cf)
 
- Static Public Member Functions inherited from osg::Referenced
static OpenThreads::MutexgetGlobalReferencedMutex ()
 
static void setDeleteHandler (DeleteHandler *handler)
 
static DeleteHandlergetDeleteHandler ()
 

Protected Member Functions

bool intersects (const osg::BoundingSphere &bs)
 
bool intersectAndClip (osg::Vec3d &s, osg::Vec3d &e, const osg::BoundingBox &bb)
 
- Protected Member Functions inherited from osg::Referenced
virtual ~Referenced ()
 
void signalObserversAndDelete (bool signalDelete, bool doDelete) const
 
void deleteUsingDeleteHandler () const
 

Protected Attributes

LineSegmentIntersector_parent
 
osg::Vec3d _start
 
osg::Vec3d _end
 
Intersections _intersections
 
- Protected Attributes inherited from osgUtil::Intersector
CoordinateFrame _coordinateFrame
 
IntersectionLimit _intersectionLimit
 
unsigned int _disabledCount
 
PrecisionHint _precisionHint
 
- Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr _observerSet
 
OpenThreads::Atomic _refCount
 

Detailed Description

Concrete class for implementing line intersections with the scene graph. To be used in conjunction with IntersectionVisitor.

Member Typedef Documentation

◆ Intersections

Constructor & Destructor Documentation

◆ LineSegmentIntersector() [1/3]

osgUtil::LineSegmentIntersector::LineSegmentIntersector ( const osg::Vec3d start,
const osg::Vec3d end 
)

Construct a LineSegmentIntersector that runs between the specified start and end points in MODEL coordinates.

◆ LineSegmentIntersector() [2/3]

osgUtil::LineSegmentIntersector::LineSegmentIntersector ( CoordinateFrame  cf,
const osg::Vec3d start,
const osg::Vec3d end,
LineSegmentIntersector parent = NULL,
osgUtil::Intersector::IntersectionLimit  intersectionLimit = osgUtil::Intersector::NO_LIMIT 
)

Construct a LineSegmentIntersector that runs between the specified start and end points in the specified coordinate frame.

◆ LineSegmentIntersector() [3/3]

osgUtil::LineSegmentIntersector::LineSegmentIntersector ( CoordinateFrame  cf,
double  x,
double  y 
)

Convenience constructor for supporting picking in WINDOW, or PROJECTION coordinates In WINDOW coordinates creates a start value of (x,y,0) and end value of (x,y,1). In PROJECTION coordinates (clip space cube) creates a start value of (x,y,-1) and end value of (x,y,1). In VIEW and MODEL coordinates creates a start value of (x,y,0) and end value of (x,y,1).

Member Function Documentation

◆ clone()

virtual Intersector * osgUtil::LineSegmentIntersector::clone ( osgUtil::IntersectionVisitor iv)
virtual

Implements osgUtil::Intersector.

◆ containsIntersections()

virtual bool osgUtil::LineSegmentIntersector::containsIntersections ( )
inlinevirtual

Implements osgUtil::Intersector.

◆ enter()

virtual bool osgUtil::LineSegmentIntersector::enter ( const osg::Node node)
virtual

Implements osgUtil::Intersector.

◆ getEnd()

const osg::Vec3d & osgUtil::LineSegmentIntersector::getEnd ( ) const
inline

◆ getFirstIntersection()

Intersection osgUtil::LineSegmentIntersector::getFirstIntersection ( )
inline

◆ getIntersections()

Intersections & osgUtil::LineSegmentIntersector::getIntersections ( )
inline

◆ getStart()

const osg::Vec3d & osgUtil::LineSegmentIntersector::getStart ( ) const
inline

◆ getTransformation()

static osg::Matrix osgUtil::LineSegmentIntersector::getTransformation ( osgUtil::IntersectionVisitor iv,
CoordinateFrame  cf 
)
static

Compute the matrix that transforms the local coordinate system of parent Intersector (usually the current intersector) into the child coordinate system of the child Intersector. cf parameter indicates the coordinate frame of parent Intersector.

◆ insertIntersection()

void osgUtil::LineSegmentIntersector::insertIntersection ( const Intersection intersection)
inline

◆ intersect() [1/2]

virtual void osgUtil::LineSegmentIntersector::intersect ( osgUtil::IntersectionVisitor iv,
osg::Drawable drawable 
)
virtual

Implements osgUtil::Intersector.

◆ intersect() [2/2]

virtual void osgUtil::LineSegmentIntersector::intersect ( osgUtil::IntersectionVisitor iv,
osg::Drawable drawable,
const osg::Vec3d s,
const osg::Vec3d e 
)
virtual

◆ intersectAndClip()

bool osgUtil::LineSegmentIntersector::intersectAndClip ( osg::Vec3d s,
osg::Vec3d e,
const osg::BoundingBox bb 
)
protected

◆ intersects()

bool osgUtil::LineSegmentIntersector::intersects ( const osg::BoundingSphere bs)
protected

◆ leave()

virtual void osgUtil::LineSegmentIntersector::leave ( )
virtual

Implements osgUtil::Intersector.

◆ reset()

virtual void osgUtil::LineSegmentIntersector::reset ( )
virtual

Reimplemented from osgUtil::Intersector.

◆ setEnd()

void osgUtil::LineSegmentIntersector::setEnd ( const osg::Vec3d end)
inline

◆ setStart()

void osgUtil::LineSegmentIntersector::setStart ( const osg::Vec3d start)
inline

Member Data Documentation

◆ _end

osg::Vec3d osgUtil::LineSegmentIntersector::_end
protected

◆ _intersections

Intersections osgUtil::LineSegmentIntersector::_intersections
protected

◆ _parent

LineSegmentIntersector* osgUtil::LineSegmentIntersector::_parent
protected

◆ _start

osg::Vec3d osgUtil::LineSegmentIntersector::_start
protected

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