makVrv::DtCachedIntersector Class Reference

A Cached Intersector will first look at the local cache, and, if the local cache does not have the information, use the appropiate model set intersector to get the result, and cache it.

Public Member Functions
	DtCachedIntersector (DtDe &de, DtModelSetId modelSet)
virtual	~DtCachedIntersector ()
virtual bool	findNearestIntersectionToPoint (double x, double y, double z, double vx, double vy, double vz, DtIntersectorResult &intersection, DtIntersector::IntersectProperties properties=DtIntersector::AllNodes, std::vector< DtElementID > *ignoreList=0, bool returnTriangle=false, double maxIsectorLength=-1., bool useHighLod=false)
virtual bool	findAllIntersectionsThroughPoint (double x, double y, double z, double vx, double vy, double vz, DtIntersector::DtIntersections &intersections, DtIntersector::IntersectProperties properties=DtIntersector::AllNodes, std::vector< DtElementID > *ignoreList=0, bool sort=true, bool useHighLod=false)
virtual bool	findFirstIntersectWithLineSegment (double x, double y, double z, double end_x, double end_y, double end_z, DtIntersectorResult &intersection, DtIntersector::IntersectProperties properties=DtIntersector::AllNodes, std::vector< DtElementID > *ignoreList=0, bool useHighLod=false)
virtual bool	findAllIntersectWithLineSegment (double x, double y, double z, double end_x, double end_y, double end_z, DtIntersector::DtIntersections &intersections, DtIntersector::IntersectProperties properties=DtIntersector::AllNodes, std::vector< DtElementID > *ignoreList=0, bool sort=true, bool useHighLod=false)
virtual bool	pick (DtChannel &channel, double mx, double my, DtIntersectorResult &intersection, DtIntersector::IntersectProperties properties=DtIntersector::AllNodes, std::vector< DtElementID > *ignoreList=0)
virtual bool	pickAll (DtChannel *channel, double mx, double my, DtIntersector::DtIntersections &intersections, DtIntersector::IntersectProperties properties=DtIntersector::AllNodes, std::vector< DtElementID > *ignoreList=0)
virtual void	setSharedCache (DtIntersectorCache *)
virtual void	setCacheLimit (int)
virtual void	clearCache ()
virtual void	setDynamicOceanProperties (DtIntersector::DynamicOceanProperties properties)
virtual DtIntersector::DynamicOceanProperties	dynamicOceanProperties () const

Protected Attributes
DtDe &	myDe
DtIntersectorCache *	myCache
bool	myCacheIsShared
DtModelSetId	myModelSet
int	myCacheLimit
DtIntersector::DynamicOceanProperties	myDynamicOceanProperties
DtIntersector *	myModelSetIntersector

Constructor & Destructor Documentation

makVrv::DtCachedIntersector::DtCachedIntersector	(	DtDe &	de,
		DtModelSetId	modelSet
	)

CTOR.

virtual makVrv::DtCachedIntersector::~DtCachedIntersector ( )

virtual

DTOR.

Member Function Documentation

virtual bool makVrv::DtCachedIntersector::findNearestIntersectionToPoint ( double  x, double  y, double  z, double  vx, double  vy, double  vz, DtIntersectorResult &  intersection, DtIntersector::IntersectProperties  properties = DtIntersector::AllNodes, std::vector< DtElementID > *  ignoreList = 0, bool  returnTriangle = false, double  maxIsectorLength = -1., bool  useHighLod = false  )

virtual

Find the nearest scene intersection from a point (x,y,z) along a vector(vx,vy,vz). The useHighLod argument tells the intersector that if the terrain is an osgEarth terrain, don't settle for whatever is paged in; get the highest LOD from the map server for this location and use that Note that if maxIsectorLength is not set, the default is the diameter of the database, which for large (and especially geocentric) databases and world databases, may be too large to get adequate precision when trying to interect small (high resolution) triangles. It is recommended that you set the isector length to something more specific if possible, like the altitude of the observer + a constant, for example; or, for osgEarth databases, useHighLod=true, which will also eliminate the problem.

Return values

false

if no intersection was found (and the isect record is NOT set).

virtual bool makVrv::DtCachedIntersector::findAllIntersectionsThroughPoint ( double  x, double  y, double  z, double  vx, double  vy, double  vz, DtIntersector::DtIntersections &  intersections, DtIntersector::IntersectProperties  properties = DtIntersector::AllNodes, std::vector< DtElementID > *  ignoreList = 0, bool  sort = true, bool  useHighLod = false  )

virtual

Return a list of all intersections along the line passing through <x,y,z> and directed by <vx, vy, vz> The useHighLod argument tells the intersector that if the terrain is an osgEarth terrain, don't settle for whatever is paged in; get the highest LOD from the map server for this location and use that.

Return values

false

if no intersection was found (and the isect record list has size 0).

virtual bool makVrv::DtCachedIntersector::findFirstIntersectWithLineSegment ( double  x, double  y, double  z, double  end_x, double  end_y, double  end_z, DtIntersectorResult &  intersection, DtIntersector::IntersectProperties  properties = DtIntersector::AllNodes, std::vector< DtElementID > *  ignoreList = 0, bool  useHighLod = false  )

virtual

find first intersection along segment x,y,z to end_x, end_y, end_z. The useHighLod argument tells the intersector that if the terrain is an osgEarth terrain, don't settle for whatever is paged in; get the highest LOD from the map server for this location and use that

Return values

false

if no intersection was found (and the isect record is NOT set).

virtual bool makVrv::DtCachedIntersector::findAllIntersectWithLineSegment ( double  x, double  y, double  z, double  end_x, double  end_y, double  end_z, DtIntersector::DtIntersections &  intersections, DtIntersector::IntersectProperties  properties = DtIntersector::AllNodes, std::vector< DtElementID > *  ignoreList = 0, bool  sort = true, bool  useHighLod = false  )

virtual

find all intersections along segment x,y,z to end_x, end_y, end_z. The useHighLod argument tells the intersector that if the terrain is an osgEarth terrain, don't settle for whatever is paged in; get the highest LOD from the map server for this location and use that

Return values

false

if no intersection was found (and the isect record list has size 0).

virtual bool makVrv::DtCachedIntersector::pick ( DtChannel &  channel, double  mx, double  my, DtIntersectorResult &  intersection, DtIntersector::IntersectProperties  properties = DtIntersector::AllNodes, std::vector< DtElementID > *  ignoreList = 0  )

virtual

Find the object (if any) under the mouse mx, my are in window coordinates; cx, cy, cz are returned in database coordinates.

Return values

false

if no intersection was found (and the isect record is NOT set).

virtual bool makVrv::DtCachedIntersector::pickAll ( DtChannel *  channel, double  mx, double  my, DtIntersector::DtIntersections &  intersections, DtIntersector::IntersectProperties  properties = DtIntersector::AllNodes, std::vector< DtElementID > *  ignoreList = 0  )

virtual

Find all the objects (if any) under the mouse mx, my are in window coordinates.

Return values

false

if no intersection was found (and the isect record list has size 0).

virtual void makVrv::DtCachedIntersector::setSharedCache ( DtIntersectorCache *  )

virtual

Sets a shared cache. If NULL, then will allocate cache for this intersector.

virtual void makVrv::DtCachedIntersector::setCacheLimit ( int  )

virtual

Sets the size of the cache.

virtual void makVrv::DtCachedIntersector::clearCache ( )

virtual

Clears the intersection cache.

virtual void makVrv::DtCachedIntersector::setDynamicOceanProperties ( DtIntersector::DynamicOceanProperties  properties )

virtual

If an ocean layer exists, determine if it should be ignored, use mean sea level, or wave height.

virtual DtIntersector::DynamicOceanProperties makVrv::DtCachedIntersector::dynamicOceanProperties ( ) const

virtual

Get the current properties, so they may be restored if changed.

Member Data Documentation

DtDe& makVrv::DtCachedIntersector::myDe

protected

DtIntersectorCache* makVrv::DtCachedIntersector::myCache

protected

bool makVrv::DtCachedIntersector::myCacheIsShared

protected

DtModelSetId makVrv::DtCachedIntersector::myModelSet

protected

int makVrv::DtCachedIntersector::myCacheLimit

protected

DtIntersector::DynamicOceanProperties makVrv::DtCachedIntersector::myDynamicOceanProperties

protected

DtIntersector* makVrv::DtCachedIntersector::myModelSetIntersector

protected

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-1-branch/include/vrvCore/DtCachedIntersector.h