SoPickRayElement Class Reference

Element that stores the current ray to use for picking. More...

#include <Inventor/elements/SoPickRayElement.h>

Inheritance diagram for SoPickRayElement:

List of all members.

Public Member Functions
virtual void	init (SoState *state)
	Initializes element.
virtual SbBool	matches (const SoElement *elt) const
	Always returns FALSE, since this element should never be a criterion for cache invalidation.
virtual SoElement *	copyMatchInfo () const
	Create and return a copy of this element.
virtual void	print (FILE *fp) const
	Prints element (for debugging)
Static Public Member Functions
static void	set (SoState *state, const SbViewVolume &volume)
	Sets the picking ray.
static const SbViewVolume &	get (SoState *state)
	Returns the current picking ray view volume from the state.
static void	initClass ()
	Initializes the SoPickRayElement class.
Protected Member Functions
virtual	~SoPickRayElement ()
Protected Attributes
SbViewVolume	volume
	Ray as view volume.

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Detailed Description

It contains the world space ray information in terms of an SbViewVolume. The projection point and view direction of the volume represent the ray itself. The width (which equals the height) represents the diameter of the picking circle in the near plane. The near and far planes represent the distances to the near and far planes between which valid intersections must lie.

Definition at line 76 of file SoPickRayElement.h.

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Constructor & Destructor Documentation

virtual SoPickRayElement::~SoPickRayElement

(

)

[protected, virtual]

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Member Function Documentation

virtual SoElement* SoPickRayElement::copyMatchInfo

(

)

const [virtual]

Implements SoElement.

static const SbViewVolume& SoPickRayElement::get

(

SoState *

state

)

[static]

virtual void SoPickRayElement::init

(

SoState *

state

)

[virtual]

Reimplemented from SoElement.

static void SoPickRayElement::initClass

(

)

[static]

Reimplemented from SoElement.

virtual SbBool SoPickRayElement::matches

(

const SoElement *

elt

)

const [virtual]

Implements SoElement.

virtual void SoPickRayElement::print

(

FILE *

fp

)

const [virtual]

Reimplemented from SoElement.

static void SoPickRayElement::set	(	SoState *	state,
		const SbViewVolume &	volume
	)		[static]

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Member Data Documentation

SbViewVolume SoPickRayElement::volume [protected]

Definition at line 105 of file SoPickRayElement.h.

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

• MeVis/ThirdParty/Sources/Inventor/inventor/lib/database/include/Inventor/elements/SoPickRayElement.h