openscenegraph
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#include <PolytopeIntersector>
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struct | Intersection |
Public Types | |
enum | { POINT_PRIMITIVES = (1<<0) , LINE_PRIMITIVES = (1<<1) , TRIANGLE_PRIMITIVES = (1<<2) , ALL_PRIMITIVES = ( POINT_PRIMITIVES | LINE_PRIMITIVES | TRIANGLE_PRIMITIVES ) } |
dimension enum to specify primitive types to check. More... | |
typedef osg::Plane::Vec3_type | Vec3_type |
typedef std::set< Intersection > | Intersections |
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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 } |
Protected Attributes | |
PolytopeIntersector * | _parent |
osg::Polytope | _polytope |
unsigned int | _primitiveMask |
mask which dimensions should be checked | |
osg::Plane | _referencePlane |
plane to use for sorting intersections | |
Intersections | _intersections |
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CoordinateFrame | _coordinateFrame |
IntersectionLimit | _intersectionLimit |
unsigned int | _disabledCount |
PrecisionHint | _precisionHint |
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OpenThreads::AtomicPtr | _observerSet |
OpenThreads::Atomic | _refCount |
Additional Inherited Members | |
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static OpenThreads::Mutex * | getGlobalReferencedMutex () |
static void | setDeleteHandler (DeleteHandler *handler) |
static DeleteHandler * | getDeleteHandler () |
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virtual | ~Referenced () |
void | signalObserversAndDelete (bool signalDelete, bool doDelete) const |
void | deleteUsingDeleteHandler () const |
Concrete class for implementing polytope intersections with the scene graph. To be used in conjunction with IntersectionVisitor.
typedef std::set<Intersection> osgUtil::PolytopeIntersector::Intersections |
anonymous enum |
osgUtil::PolytopeIntersector::PolytopeIntersector | ( | const osg::Polytope & | polytope | ) |
Construct a PolytopeIntersector using specified polytope in MODEL coordinates.
osgUtil::PolytopeIntersector::PolytopeIntersector | ( | CoordinateFrame | cf, |
const osg::Polytope & | polytope | ||
) |
Construct a PolytopeIntersector using specified polytope in specified coordinate frame.
osgUtil::PolytopeIntersector::PolytopeIntersector | ( | CoordinateFrame | cf, |
double | xMin, | ||
double | yMin, | ||
double | xMax, | ||
double | yMax | ||
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Convenience constructor for supporting picking in WINDOW, or PROJECTION coordinates In WINDOW coordinates (clip space cube) creates a five sided polytope box that has a front face at 0.0 and sides around box xMin, yMin, xMax, yMax. In PROJECTION coordinates (clip space cube) creates a five sided polytope box that has a front face at -1 and sides around box xMin, yMin, xMax, yMax. In VIEW and MODEL coordinates (clip space cube) creates a five sided polytope box that has a front face at 0.0 and sides around box xMin, yMin, xMax, yMax.
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Implements osgUtil::Intersector.
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Implements osgUtil::Intersector.
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Implements osgUtil::Intersector.
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Get the Polytope used by the intersector.
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Get the const Polytope used by the intersector.
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Get which Primitives should be tested for intersections.
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Implements osgUtil::Intersector.
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Implements osgUtil::Intersector.
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Reimplemented from osgUtil::Intersector.
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Set which Primitives should be tested for intersections.
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set the plane used to sort the intersections. The intersections are sorted by the distance of the localIntersectionPoint and the reference plane. The default for the reference plane is the last plane of the polytope.
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mask which dimensions should be checked
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plane to use for sorting intersections