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						      SoPerspectiveCamera(3IV)

NAME
     SoPerspectiveCamera (SoPerspCam) - perspective camera node

INHERITS FROM
     SoBase > SoFieldContainer > SoNode > SoCamera > SoPerspectiveCamera

SYNOPSIS
     #include <Inventor_c/nodes/SoPerspectiveCamera.h>

     typedef SoPerspectiveCamera  SoPerspCam

	  Fields from class SoPerspectiveCamera:

     SoSFFloat		 heightAngle

	  Fields from class SoCamera:

     SoSFEnum		 viewportMapping
     SoSFVec3f		 position
     SoSFRotation	 orientation
     SoSFFloat		 aspectRatio
     SoSFFloat		 nearDistance
     SoSFFloat		 farDistance
     SoSFFloat		 focalDistance

	  Functions from class SoPerspectiveCamera:

     SoPerspectiveCamera *  SoPerspCamCreate()
     SoType		    SoPerspCamGetClassTypeId()

	  Functions from class SoCamera:

     void		 SoPerspCamPtAt(SoPerspCam *this, const SbVec3f
			      *targetPoint)
     void		 SoPerspCamScaleHeight(SoPerspCam *this, float
			      scaleFactor)
     SbViewVolume	 SoPerspCamGetViewVol(const SoPerspCam *this, float
			      useAspectRatio = 0.0)
     void		 SoPerspCamViewAll(SoPerspCam *this, SoNode
			      *sceneRoot, const SbViewportRegion *vpRegion,
			      float slack = 1.0)
     void		 SoPerspCamViewAllPath(SoPerspCam *this, SoPath *path,
			      const SbViewportRegion *vpRegion, float slack =
			      1.0)
     SbViewportRegion	 SoPerspCamGetVpBounds(const SoPerspCam *this, const
			      SbViewportRegion *region)

	  Functions from class SoNode:

     void		 SoPerspCamSetOverride(SoPerspCam *this, SbBool state)
     SbBool		 SoPerspCamIsOverride(const SoPerspCam *this)

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SoPerspectiveCamera(3IV)

     SoNode *		 SoPerspCamCopy(const SoPerspCam *this, SbBool
			      copyConnections = FALSE)
     SbBool		 SoPerspCamAffectsState(const SoPerspCam *this)
     SoNode *		 SoPerspCamGetByName(const char *name)
     int		 SoPerspCamGetByNameList(const char *name, SoNodeList
			      *list)

	  Functions from class SoFieldContainer:

     void		 SoPerspCamSetToDflts(SoPerspCam *this)
     SbBool		 SoPerspCamHasDfltVals(const SoPerspCam *this)
     SbBool		 SoPerspCamFldsAreEq(const SoPerspCam *this, const
			      SoFieldContainer *fc)
     void		 SoPerspCamCopyFieldVals(SoPerspCam *this, const
			      SoFieldContainer *fc, SbBool copyConnections =
			      FALSE)
     SbBool		 SoPerspCamSet(SoPerspCam *this, const char
			      *fieldDataString)
     void		 SoPerspCamGet(SoPerspCam *this, SbString
			      *fieldDataString)
     int		 SoPerspCamGetFields(const SoPerspCam *this,
			      SoFieldList *resultList)
     SoField *		 SoPerspCamGetField(const SoPerspCam *this, const char
			      *fieldName)
     SbBool		 SoPerspCamGetFieldName(const SoPerspCam *this, const
			      SoField *field, SbName *fieldName)
     SbBool		 SoPerspCamIsNotifyEnabled(const SoPerspCam *this)
     SbBool		 SoPerspCamEnableNotify(SoPerspCam *this, SbBool flag)

	  Functions from class SoBase:

     void		 SoPerspCamRef(SoPerspCam *this)
     void		 SoPerspCamUnref(const SoPerspCam *this)
     void		 SoPerspCamUnrefNoDelete(const SoPerspCam *this)
     void		 SoPerspCamTouch(SoPerspCam *this)
     SoType		 SoPerspCamGetTypeId(const SoPerspCam *this)
     SbBool		 SoPerspCamIsOfType(const SoPerspCam *this, SoType
			      type)
     void		 SoPerspCamSetName(SoPerspCam *this, const char *name)
     SbName		 SoPerspCamGetName(const SoPerspCam *this)

DESCRIPTION
     A perspective camera defines a perspective projection from a viewpoint.
     The viewing volume for a perspective camera is a truncated right pyramid.

     By default, the camera is located at (0,0,1) and looks along the negative
     z-axis; the position and orientation fields can be used to change these
     values. The heightAngle field defines the total vertical angle of the
     viewing volume; this and the aspectRatio field determine the horizontal
     angle.

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						      SoPerspectiveCamera(3IV)

FIELDS
     SoSFFloat		 heightAngle
	  Vertical angle of the viewing volume.

FUNCTIONS
     SoPerspectiveCamera *  SoPerspCamCreate()
	  Creates a perspective camera node with default settings.

     SoType		    SoPerspCamGetClassTypeId()
	  Returns type identifier for this class.

ACTION BEHAVIOR
     SoGLRenderAction, SoCallbackAction, SoGetBoundingBoxAction,
     SoHandleEventAction, SoRayPickAction
	  Sets the viewport and camera information in the state.

FILE FORMAT/DEFAULTS
     PerspectiveCamera {
	  viewportMapping  ADJUST_CAMERA
	  position	   0 0 1
	  orientation	   0 0 1  0
	  aspectRatio	   1
	  nearDistance	   1
	  farDistance	   10
	  focalDistance	   5
	  heightAngle	   0.785398
     }

SEE ALSO
     SbViewVolume, SoOrthographicCamera

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