SoReversePerspectiveCamera Class Reference

The SoReversePerspectiveCamera class defines a camera node with reverse perspective rendering. More...

#include <Inventor/nodes/SoReversePerspectiveCamera.h>

Inheritance diagram for SoReversePerspectiveCamera:

Public Member Functions
	SoReversePerspectiveCamera (void)
virtual SoType	getTypeId (void) const
Public Member Functions inherited from SoPerspectiveCamera
	SoPerspectiveCamera (void)
virtual SbViewVolume	getViewVolume (float useaspectratio=0.0f) const
virtual void	scaleHeight (float scalefactor)
virtual void	viewBoundingBox (const SbBox3f &box, float aspect, float slack)
Public Member Functions inherited from SoCamera
virtual void	audioRender (SoAudioRenderAction *action)
virtual void	callback (SoCallbackAction *action)
virtual void	doAction (SoAction *action)
float	getBalanceAdjustment (void) const
virtual void	getBoundingBox (SoGetBoundingBoxAction *action)
virtual void	getMatrix (SoGetMatrixAction *action)
virtual void	getPrimitiveCount (SoGetPrimitiveCountAction *action)
float	getStereoAdjustment (void) const
StereoMode	getStereoMode (void) const
SbViewportRegion	getViewportBounds (const SbViewportRegion &region) const
SbViewVolume	getViewVolume (const SbViewportRegion &vp, SbViewportRegion &resultvp, const SbMatrix &mm=SbMatrix::identity()) const
virtual void	GLRender (SoGLRenderAction *action)
virtual void	handleEvent (SoHandleEventAction *action)
void	pointAt (const SbVec3f &targetpoint)
void	pointAt (const SbVec3f &targetpoint, const SbVec3f &upvector)
virtual void	rayPick (SoRayPickAction *action)
void	setBalanceAdjustment (float adjustment)
void	setStereoAdjustment (float adjustment)
void	setStereoMode (StereoMode mode)
void	viewAll (SoNode *const sceneroot, const SbViewportRegion &vpregion, const float slack=1.0f)
void	viewAll (SoPath *const path, const SbViewportRegion &vpregion, const float slack=1.0f)
Public Member Functions inherited from SoNode
virtual SoNode *	addToCopyDict (void) const
virtual SbBool	affectsState (void) const
virtual SoNode *	copy (SbBool copyconnections=FALSE) const
virtual void	copyContents (const SoFieldContainer *from, SbBool copyconnections)
virtual SoFieldContainer *	copyThroughConnection (void) const
virtual SoChildList *	getChildren (void) const
SbUniqueId	getNodeId (void) const
NodeType	getNodeType (void) const
virtual void	GLRenderBelowPath (SoGLRenderAction *action)
virtual void	GLRenderInPath (SoGLRenderAction *action)
virtual void	GLRenderOffPath (SoGLRenderAction *action)
virtual void	grabEventsCleanup (void)
virtual void	grabEventsSetup (void)
SbBool	isOverride (void) const
virtual void	notify (SoNotList *l)
virtual void	pick (SoPickAction *action)
virtual void	search (SoSearchAction *action)
void	setNodeType (const NodeType type)
void	setOverride (const SbBool state)
virtual void	startNotify (void)
virtual void	write (SoWriteAction *action)
virtual void	writeInstance (SoOutput *out)
Public Member Functions inherited from SoFieldContainer
virtual void	addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
void	copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
SbBool	enableNotify (const SbBool flag)
SbBool	fieldsAreEqual (const SoFieldContainer *container) const
void	get (SbString &fielddata)
void	get (SbString &fielddata, SoOutput *out)
virtual int	getAllFields (SoFieldList &l) const
virtual SoField *	getEventIn (const SbName &name) const
virtual SoField *	getEventOut (const SbName &name) const
virtual SoField *	getField (const SbName &name) const
SbBool	getFieldName (const SoField *const field, SbName &name) const
virtual int	getFields (SoFieldList &l) const
virtual void	getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
SbBool	getIsBuiltIn (void) const
void *	getUserData (void) const
SbBool	hasDefaultValues (void) const
SbBool	isNotifyEnabled (void) const
SbBool	set (const char *const fielddata)
SbBool	set (const char *fielddata, SoInput *input)
void	setToDefaults (void)
void	setUserData (void *userdata) const
virtual SbBool	validateNewFieldValue (SoField *field, void *newval)
Public Member Functions inherited from SoBase
void	addAuditor (void *const auditor, const SoNotRec::Type type)
void	assertAlive (void) const
const SoAuditorList &	getAuditors (void) const
virtual SbName	getName (void) const
int32_t	getRefCount (void) const
SbBool	isOfType (SoType type) const
	Returns TRUE if the type of this object is either of the same type or inherited from type.
void	ref (void) const
void	removeAuditor (void *const auditor, const SoNotRec::Type type)
virtual void	setName (const SbName &newname)
SbBool	shouldWrite (void)
void	touch (void)
void	unref (void) const
void	unrefNoDelete (void) const

Static Public Member Functions
static SoType	getClassTypeId (void)
static void	initClass (void)
	Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
Static Public Member Functions inherited from SoPerspectiveCamera
static SoType	getClassTypeId (void)
static void	initClass (void)
	Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
Static Public Member Functions inherited from SoCamera
static SoType	getClassTypeId (void)
static void	initClass (void)
	Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
Static Public Member Functions inherited from SoNode
static void	audioRenderS (SoAction *action, SoNode *node)
static void	callbackS (SoAction *action, SoNode *node)
static int	getActionMethodIndex (const SoType type)
static void	getBoundingBoxS (SoAction *action, SoNode *node)
static SoNode *	getByName (const SbName &name)
static int	getByName (const SbName &name, SoNodeList &l)
static SoType	getClassTypeId (void)
static uint32_t	getCompatibilityTypes (const SoType &nodetype)
static void	getMatrixS (SoAction *action, SoNode *node)
static SbUniqueId	getNextNodeId (void)
static void	getPrimitiveCountS (SoAction *action, SoNode *node)
static void	GLRenderS (SoAction *action, SoNode *node)
static void	handleEventS (SoAction *action, SoNode *node)
static void	initClass (void)
	Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static void	initClasses (void)
static void	pickS (SoAction *action, SoNode *node)
static void	rayPickS (SoAction *action, SoNode *node)
static void	searchS (SoAction *action, SoNode *node)
static void	writeS (SoAction *action, SoNode *node)
Static Public Member Functions inherited from SoFieldContainer
static void	addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
static SoFieldContainer *	checkCopy (const SoFieldContainer *orig)
static void	cleanupClass (void)
static void	copyDone (void)
static SoFieldContainer *	findCopy (const SoFieldContainer *orig, const SbBool copyconnections)
static SoType	getClassTypeId (void)
	This static method returns the SoType object associated with objects of this class.
static void	initClass (void)
	Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static void	initCopyDict (void)
Static Public Member Functions inherited from SoBase
static void	addName (SoBase *const base, const char *const name)
static SbBool	connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
static void	decrementCurrentWriteCounter (void)
static SoType	getClassTypeId (void)
	This static method returns the SoType object associated with objects of this class.
static SoBase *	getNamedBase (const SbName &name, SoType type)
static int	getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
static SbBool	getTraceRefs (void)
static void	incrementCurrentWriteCounter (void)
static void	initClass (void)
	Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static SbBool	read (SoInput *input, SoBase *&base, SoType expectedtype)
static SbBool	readRoute (SoInput *input)
static void	removeName (SoBase *const base, const char *const name)
static void	setInstancePrefix (const SbString &c)
static void	setTraceRefs (SbBool trace)

Protected Member Functions
virtual	~SoReversePerspectiveCamera ()
virtual const SoFieldData *	getFieldData (void) const
Protected Member Functions inherited from SoPerspectiveCamera
virtual	~SoPerspectiveCamera ()
Protected Member Functions inherited from SoCamera
	SoCamera (void)
virtual	~SoCamera ()
virtual void	jitter (int numpasses, int curpass, const SbViewportRegion &vpreg, SbVec3f &jitteramount) const
Protected Member Functions inherited from SoNode
	SoNode (void)
virtual	~SoNode ()
virtual SbBool	readInstance (SoInput *in, unsigned short flags)
Protected Member Functions inherited from SoFieldContainer
	SoFieldContainer (void)
virtual	~SoFieldContainer ()
Protected Member Functions inherited from SoBase
	SoBase (void)
virtual	~SoBase ()
virtual SoNotRec	createNotRec (void)
virtual void	destroy (void)
virtual const char *	getFileFormatName (void) const
SbBool	hasMultipleWriteRefs (void) const
void	writeFooter (SoOutput *out) const
SbBool	writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const

Static Protected Member Functions
static const SoFieldData **	getFieldDataPtr (void)
Static Protected Member Functions inherited from SoPerspectiveCamera
static const SoFieldData **	getFieldDataPtr (void)
Static Protected Member Functions inherited from SoCamera
static const SoFieldData **	getFieldDataPtr (void)
Static Protected Member Functions inherited from SoNode
static const SoFieldData **	getFieldDataPtr (void)
static int	getNextActionMethodIndex (void)
static void	incNextActionMethodIndex (void)
static void	setCompatibilityTypes (const SoType &nodetype, const uint32_t bitmask)
static void	setNextActionMethodIndex (int index)
Static Protected Member Functions inherited from SoBase
static uint32_t	getCurrentWriteCounter (void)
static void	staticDataLock (void)
static void	staticDataUnlock (void)

Additional Inherited Members
Public Types inherited from SoCamera
enum	StereoMode { MONOSCOPIC , LEFT_VIEW , RIGHT_VIEW }
enum	ViewportMapping {   CROP_VIEWPORT_FILL_FRAME , CROP_VIEWPORT_LINE_FRAME , CROP_VIEWPORT_NO_FRAME , ADJUST_CAMERA ,   LEAVE_ALONE }
Public Types inherited from SoNode
enum	NodeType {   INVENTOR = 0x0000 , VRML1 = 0x0001 , VRML2 = 0x0002 , INVENTOR_1 = 0x0004 ,   INVENTOR_2_0 = 0x0008 , INVENTOR_2_1 = 0x0010 , INVENTOR_2_5 = 0x0020 , INVENTOR_2_6 = 0x0040 ,   COIN_1_0 = 0x0080 , COIN_2_0 = 0x0100 , EXTENSION = 0x0200 , COIN_2_2 = 0x0400 ,   COIN_2_3 = 0x0800 , COIN_2_4 = 0x1000 , INVENTOR_5_0 = 0x2000 , COIN_2_5 = 0x4000 ,   COIN_3_0 = 0x8000 , INVENTOR_6_0 = 0x10000 , COIN_4_0 = 0x20000 }
Public Attributes inherited from SoPerspectiveCamera
SoSFFloat	heightAngle
Public Attributes inherited from SoCamera
SoSFFloat	aspectRatio
SoSFFloat	farDistance
SoSFFloat	focalDistance
SoSFFloat	nearDistance
SoSFRotation	orientation
SoSFVec3f	position
SoSFEnum	viewportMapping
Protected Types inherited from SoBase
enum	BaseFlags { IS_ENGINE = 0x01 , IS_GROUP = 0x02 }
Protected Attributes inherited from SoNode
SbUniqueId	uniqueId
Protected Attributes inherited from SoFieldContainer
SbBool	isBuiltIn
Static Protected Attributes inherited from SoNode
static int	nextActionMethodIndex = 0
static SbUniqueId	nextUniqueId = 1

Detailed Description

The SoReversePerspectiveCamera class defines a camera node with reverse perspective rendering.

For realistic looking 3D scene, the geometry should be rendered with perspective calculations. Use this camera type to accomplish this.

Reverse perspective rendering, a special case of perspective rendering, is where the projection rays do not converge in the eye of the observer, but instead at a point behind the scene. Thus objects farther away from the observer appear larger than closer objects. A reverse perspective projection is defined by

• setting the perspective camera position to the projection point behind the scene
• setting near / far distance to negative values
• rotating the camera orientation by 180 degrees around the camera Z-axis to compensate the image flip induced by the negative near / far values.

The view volume of the default reverse perspective camera is defined as shown below.

FILE FORMAT/DEFAULTS:

ReversePerspectiveCamera {
    viewportMapping ADJUST_CAMERA
    position 0 0 -10
    orientation 0 0 1 3.14159
    nearDistance -10
    farDistance -1
    aspectRatio 1
    focalDistance -6
    heightAngle 0.78539819
}

Constructor & Destructor Documentation

SoReversePerspectiveCamera()

SoReversePerspectiveCamera::SoReversePerspectiveCamera

(

void

)

Constructor.

~SoReversePerspectiveCamera()

SoReversePerspectiveCamera::~SoReversePerspectiveCamera ( )

protectedvirtual

Destructor.

Member Function Documentation

getClassTypeId()

SoType SoReversePerspectiveCamera::getClassTypeId ( void )

static

This static method returns the SoType object associated with objects of this class.

getFieldData()

const SoFieldData * SoReversePerspectiveCamera::getFieldData ( void ) const

protectedvirtual

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoPerspectiveCamera.

getFieldDataPtr()

const SoFieldData ** SoReversePerspectiveCamera::getFieldDataPtr ( void )

staticprotected

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Returns the SoFieldData class which holds information about fields in this node.

getTypeId()

SoType SoReversePerspectiveCamera::getTypeId ( void ) const

virtual

Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime type checking and "downward" casting.

Reimplemented from SoPerspectiveCamera.

---

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

• SoReversePerspectiveCamera.h
• SoReversePerspectiveCamera.cpp