makVrv::DtOsgTrackHistoryRibbon Class Reference

OSG implementation of a track history ribbon. More...

Inheritance diagram for makVrv::DtOsgTrackHistoryRibbon:

Classes
class	TrackHistoryGeometry
	Local subclass for track history geometry. More...

Public Member Functions
	DtOsgTrackHistoryRibbon (DtDe &de, float segmentSpacing, const osg::Vec4 &color, float maxLength)
	CTOR.
virtual	~DtOsgTrackHistoryRibbon ()
	DTOR.
virtual void	traverse (osg::NodeVisitor &nv)
	Override default traverse to remove update behavior.
virtual void	setMaxSegments (long segments)
	Sets the max number of segments in the ribbon.
Public Member Functions inherited from makVrv::DtOsgRibbon
	DtOsgRibbon ()
	Default CTOR.
	DtOsgRibbon (float segmentSpacing, const osg::Vec4 &color, float maxLength=2000)
	CTOR.
virtual	~DtOsgRibbon ()
	DTOR.
virtual osg::Node *	node ()
	Get the osg geometry node associated with the ribbon.
const osg::Vec4 &	color () const
	Get the ribbon's color.
virtual void	setDroppedPoints (const osg::Vec3d &pointA, const osg::Vec3d &pointB)
	Set the points to drop in local coordinates.
virtual void	update (double dt, double simTime)
	Update the ribbon with the current position.
long	maxSegments () const
	Gets the maximum number of segments allowed in the ribbon.
virtual void	setSegmentSpacing (float spacing)
	Sets the maximum length of ribbon segments.
float	segmentSpacing () const
	Gets the maximum length of the ribbon segments.

Protected Member Functions
virtual void	addParticle (osg::Vec3d const &left, osg::Vec3d const &right, double simTime)
	Add a particle to the ribbon.
virtual float	currentSegmentLength ()
	Find the length of the current ribbon segment.
virtual void	extendCurrentSegment (osg::Vec3d const &left, osg::Vec3d const &right, double simTime)
	Extend the current segment to left and right points.
virtual osg::Drawable *	getDrawable ()
	Create or get the ribbon drawable.
virtual int	particleIndexAtOffset (int offset)
	Get index of particle at offset from current particle.
virtual void	update ()
	Calls DtOsgRibbon::update(double,double).
virtual void	setColor (const osg::Vec4 &color)
	Change the geometry color.
virtual void	updateBounds (const osg::Vec3 &point)
	Update the ribbon's bounding box with a new point.
Protected Member Functions inherited from makVrv::DtOsgRibbon
virtual osg::Geode *	createGeode ()
	Create function for creating the geode for drawing this ribbon.
virtual void	setDrawable ()
	Removes any existing drawables and add the drawable returned from getDrawable.

Protected Attributes
DtDe &	myDe
osg::ref_ptr< osg::Vec3Array >	myPoints
osg::ref_ptr < DtSharedDrawElementsUInt >	myRibbon
osg::ref_ptr < DtSharedDrawElementsUInt >	myBottomLine
osg::ref_ptr < DtSharedDrawElementsUInt >	myTopLine
osg::ref_ptr < TrackHistoryGeometry >	myGeometry
int	myParticleIndex

Detailed Description

OSG implementation of a track history ribbon.

Constructor & Destructor Documentation

makVrv::DtOsgTrackHistoryRibbon::DtOsgTrackHistoryRibbon	(	DtDe &	de,
		float	segmentSpacing,
		const osg::Vec4 &	color,
		float	maxLength
	)

CTOR.

Parameters

de	the DtDe the ribbon belongs to.
segmentSpacing	the spacing between segments (in meters).
color	the color of the ribbon.
maxLength	the max length of the ribbon (in segments).

virtual makVrv::DtOsgTrackHistoryRibbon::~DtOsgTrackHistoryRibbon ( )

virtual

DTOR.

Member Function Documentation

virtual void makVrv::DtOsgTrackHistoryRibbon::traverse ( osg::NodeVisitor &  nv )

virtual

Override default traverse to remove update behavior.

Reimplemented from makVrv::DtOsgRibbon.

virtual void makVrv::DtOsgTrackHistoryRibbon::setMaxSegments ( long  segments )

virtual

Sets the max number of segments in the ribbon.

Overridden from DtOsgRibbon to destroy the ribbon geometry and force re-creation when the max segment count changes.

Reimplemented from makVrv::DtOsgRibbon.

virtual void makVrv::DtOsgTrackHistoryRibbon::addParticle ( osg::Vec3d const &  left, osg::Vec3d const &  right, double  simTime  )

protectedvirtual

Add a particle to the ribbon.

Implements makVrv::DtOsgRibbon.

virtual float makVrv::DtOsgTrackHistoryRibbon::currentSegmentLength ( )

protectedvirtual

Find the length of the current ribbon segment.

Implements makVrv::DtOsgRibbon.

virtual void makVrv::DtOsgTrackHistoryRibbon::extendCurrentSegment ( osg::Vec3d const &  left, osg::Vec3d const &  right, double  simTime  )

protectedvirtual

Extend the current segment to left and right points.

Implements makVrv::DtOsgRibbon.

virtual osg::Drawable* makVrv::DtOsgTrackHistoryRibbon::getDrawable ( )

protectedvirtual

Create or get the ribbon drawable.

Overridden from DtOsgRibbon to create the ribbon geometry.

Returns

the ribbon geometry (creating it on first call).

Implements makVrv::DtOsgRibbon.

virtual int makVrv::DtOsgTrackHistoryRibbon::particleIndexAtOffset ( int  offset )

protectedvirtual

Get index of particle at offset from current particle.

virtual void makVrv::DtOsgTrackHistoryRibbon::update ( )

protectedvirtual

Calls DtOsgRibbon::update(double,double).

Passes zero for both parameters (dt and simTime).

Reimplemented from makVrv::DtOsgRibbon.

virtual void makVrv::DtOsgTrackHistoryRibbon::setColor ( const osg::Vec4 &  color )

protectedvirtual

Change the geometry color.

Reimplemented from makVrv::DtOsgRibbon.

virtual void makVrv::DtOsgTrackHistoryRibbon::updateBounds ( const osg::Vec3 &  point )

protectedvirtual

Update the ribbon's bounding box with a new point.

This is usually cheap, but at random intervals will do a full recomputation of the bounds, which costs O(# points).

Member Data Documentation

DtDe& makVrv::DtOsgTrackHistoryRibbon::myDe

protected

osg::ref_ptr<osg::Vec3Array> makVrv::DtOsgTrackHistoryRibbon::myPoints

protected

osg::ref_ptr<DtSharedDrawElementsUInt> makVrv::DtOsgTrackHistoryRibbon::myRibbon

protected

osg::ref_ptr<DtSharedDrawElementsUInt> makVrv::DtOsgTrackHistoryRibbon::myBottomLine

protected

osg::ref_ptr<DtSharedDrawElementsUInt> makVrv::DtOsgTrackHistoryRibbon::myTopLine

protected

osg::ref_ptr<TrackHistoryGeometry> makVrv::DtOsgTrackHistoryRibbon::myGeometry

protected

int makVrv::DtOsgTrackHistoryRibbon::myParticleIndex

protected

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

• include/vrvOsg/DtOsgTrackHistoryRibbon.h