NAME

       SoPerspectiveCamera — perspective camera node

INHERITS FROM

       SoBase > SoFieldContainer > SoNode > SoCamera > SoPerspectiveCamera

SYNOPSIS

       #include <Inventor/nodes/SoPerspectiveCamera.h>

          Fields from class SoPerspectiveCamera:

     SoSFFloat           heightAngle

          Fields from class SoCamera:

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

          Methods from class SoPerspectiveCamera:

                         SoPerspectiveCamera()
     static SoType       getClassTypeId()

          Methods from class SoCamera:

     void                  pointAt(const SbVec3f &targetPoint)
     virtual void          scaleHeight(float scaleFactor)
     virtual SbViewVolume  getViewVolume(float useAspectRatio = 0.0) const
     void                  viewAll(SoNode  *sceneRoot,  const  SbViewportRegion  &vpRegion, float
                                slack = 1.0)
     void                  viewAll(SoPath *path, const SbViewportRegion &vpRegion, float slack  =
                                1.0)
     SbViewportRegion      getViewportBounds(const SbViewportRegion &region) const

          Methods from class SoNode:

     void                setOverride(SbBool state)
     SbBool              isOverride() const
     SoNode *            copy(SbBool copyConnections = FALSE) const
     virtual SbBool      affectsState() const
     static SoNode *     getByName(const SbName &name)
     static int          getByName(const SbName &name, SoNodeList &list)

          Methods from class SoFieldContainer:

     void                setToDefaults()
     SbBool              hasDefaultValues() const
     SbBool              fieldsAreEqual(const SoFieldContainer *fc) const
     void                copyFieldValues(const  SoFieldContainer  *fc,  SbBool  copyConnections =
                              FALSE)
     SbBool              set(const char *fieldDataString)
     void                get(SbString &fieldDataString)
     virtual int         getFields(SoFieldList &resultList) const
     virtual SoField *   getField(const SbName &fieldName) const
     SbBool              getFieldName(const SoField *field, SbName &fieldName) const
     SbBool              isNotifyEnabled() const
     SbBool              enableNotify(SbBool flag)

          Methods from class SoBase:

     void                ref()
     void                unref() const
     void                unrefNoDelete() const
     void                touch()
     virtual SoType      getTypeId() const
     SbBool              isOfType(SoType type) const
     virtual void        setName(const SbName &name)
     virtual SbName      getName() const

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.

FIELDS

     SoSFFloat           heightAngle
          Vertical angle of the viewing volume.

METHODS

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

     static SoType       getClassTypeId()
          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

                                                                       SoPerspectiveCamera(3IV)()