makVrv::DtOsgDecalRibbon Class Reference

OpenSceneGraph implementation of a textured ribbon Used to draw effects like tread tracks that follow a scene object Procedurally generated as its position in the scene changes. More...

Inheritance diagram for makVrv::DtOsgDecalRibbon:

List of all members.

Public Member Functions
	DtOsgDecalRibbon (float segmentSpacing, const osg::Vec4 &color, osg::Texture *tex, float maxLength=2000)
	CTOR.
virtual void	setTextureRepeat (float textureRepeat)
	Set the number of copies of the texture to repeat into each quad.
Protected Member Functions
virtual	~DtOsgDecalRibbon ()
	DTOR.
virtual void	addParticle (const osg::Vec3d &left, const osg::Vec3d &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	rotateDrawableIndices (int amount)
	Rotate the drawable primitives' indices by amount.
virtual osg::Vec2	getTextureCoordinateFor (int pointIndex, float vScale)
	Get the texture coordinate for a vertex.
virtual osg::Geode *	createGeode ()
	Create the geode.
Private Attributes
osg::ref_ptr< osg::Vec3Array >	myPoints
osg::ref_ptr< osg::Vec2Array >	myTextureCoordinates
osg::ref_ptr < osg::DrawElementsUInt >	myRibbon
osg::ref_ptr< osg::Geometry >	myGeometry
osg::ref_ptr< osg::Texture >	myTexture
bool	myWrappingVertices
std::string	myTextureFilename
int	myParticleIndex
float	myTextureRepeat

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Detailed Description

OpenSceneGraph implementation of a textured ribbon Used to draw effects like tread tracks that follow a scene object Procedurally generated as its position in the scene changes.

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Constructor & Destructor Documentation

makVrv::DtOsgDecalRibbon::DtOsgDecalRibbon	(	float	segmentSpacing,
		const osg::Vec4 &	color,
		osg::Texture *	tex,
		float	maxLength = 2000
	)

CTOR.

virtual makVrv::DtOsgDecalRibbon::~DtOsgDecalRibbon

(

)

[protected, virtual]

DTOR.

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Member Function Documentation

virtual void makVrv::DtOsgDecalRibbon::setTextureRepeat

(

float

textureRepeat

)

[virtual]

Set the number of copies of the texture to repeat into each quad.

Textures are tiled in their v coordinate only.

virtual void makVrv::DtOsgDecalRibbon::addParticle	(	const osg::Vec3d &	left,
		const osg::Vec3d &	right,
		double	simTime
	)		[protected, virtual]

Add a particle to the ribbon.

Implements makVrv::DtOsgRibbon.

virtual float makVrv::DtOsgDecalRibbon::currentSegmentLength

(

)

[protected, virtual]

Find the length of the current ribbon segment.

Implements makVrv::DtOsgRibbon.

virtual void makVrv::DtOsgDecalRibbon::extendCurrentSegment	(	osg::Vec3d const &	left,
		osg::Vec3d const &	right,
		double	simTime
	)		[protected, virtual]

Extend the current segment to left and right points.

Implements makVrv::DtOsgRibbon.

virtual osg::Drawable* makVrv::DtOsgDecalRibbon::getDrawable

(

)

[protected, virtual]

Create or get the ribbon drawable.

Implements makVrv::DtOsgRibbon.

virtual int makVrv::DtOsgDecalRibbon::particleIndexAtOffset

(

int

offset

)

[protected, virtual]

Get index of particle at offset from current particle.

virtual void makVrv::DtOsgDecalRibbon::rotateDrawableIndices

(

int

amount

)

[protected, virtual]

Rotate the drawable primitives' indices by amount.

virtual osg::Vec2 makVrv::DtOsgDecalRibbon::getTextureCoordinateFor	(	int	pointIndex,
		float	vScale
	)		[protected, virtual]

Get the texture coordinate for a vertex.

virtual osg::Geode* makVrv::DtOsgDecalRibbon::createGeode

(

)

[protected, virtual]

Create the geode.

Reimplemented from makVrv::DtOsgRibbon.

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Member Data Documentation

osg::ref_ptr<osg::Vec3Array> makVrv::DtOsgDecalRibbon::myPoints [private]

osg::ref_ptr<osg::Vec2Array> makVrv::DtOsgDecalRibbon::myTextureCoordinates [private]

osg::ref_ptr<osg::DrawElementsUInt> makVrv::DtOsgDecalRibbon::myRibbon [private]

osg::ref_ptr<osg::Geometry> makVrv::DtOsgDecalRibbon::myGeometry [private]

osg::ref_ptr<osg::Texture> makVrv::DtOsgDecalRibbon::myTexture [private]

bool makVrv::DtOsgDecalRibbon::myWrappingVertices [private]

std::string makVrv::DtOsgDecalRibbon::myTextureFilename [private]

int makVrv::DtOsgDecalRibbon::myParticleIndex [private]

float makVrv::DtOsgDecalRibbon::myTextureRepeat [private]

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

• include/vrvOsg/DtOsgDecalRibbon.h