NAME
SoRotateDiscDragger -
The SoRotateDiscDragger class is for rotating geometry around a single
axis.
Here’s how the dragger looks with its default geometry in the inactive
state:
SYNOPSIS
#include <Inventor/draggers/SoRotateDiscDragger.h>
Inherits SoDragger.
Public Member Functions
SoRotateDiscDragger (void)
Static Public Member Functions
static void initClass (void)
Public Attributes
SoSFRotation rotation
Protected Member Functions
virtual ~SoRotateDiscDragger (void)
virtual SbBool setUpConnections (SbBool onoff, SbBool doitalways=0)
void dragStart (void)
void drag (void)
void dragFinish (void)
Static Protected Member Functions
static void startCB (void *f, SoDragger *d)
static void motionCB (void *f, SoDragger *d)
static void doneCB (void *f, SoDragger *d)
static void fieldSensorCB (void *f, SoSensor *s)
static void valueChangedCB (void *f, SoDragger *d)
Protected Attributes
SoFieldSensor * fieldSensor
SbPlaneProjector * planeProj
Detailed Description
The SoRotateDiscDragger class is for rotating geometry around a single
axis.
Here’s how the dragger looks with its default geometry in the inactive
state:
Use an instance of this dragger class in your scenegraph to let the
end-users of your application rotate geometry around a pre-defined axis
vector in 3D.
The special feature of this dragger that sets it apart from the other
draggers that provides rotation around an axis (like the
SoRotateCylindricalDragger) is that it provides a convenient interface
to rotate around an axis that is pointing in approximately the same
direction as the camera. This is useful for interacting with for
instance something like a ’volume’ knob.
For the dragger orientation and positioning itself, use some kind of
transformation node in your scenegraph, as usual.
Constructor & Destructor Documentation
SoRotateDiscDragger::SoRotateDiscDragger (void) Default constructor, sets
up the dragger nodekit catalog with the interaction and feedback
geometry.
Node kit structure (new entries versus parent class marked with arrow
prefix):
CLASS SoRotateDiscDragger
-->"this"
"callbackList"
"topSeparator"
"motionMatrix"
"geomSeparator"
--> "rotatorSwitch"
--> "rotator"
--> "rotatorActive"
--> "feedbackSwitch"
--> "feedback"
--> "feedbackActive"
.fi
(See SoBaseKit::printDiagram() for information about the output formatting.)
Detailed information on catalog parts:
CLASS SoRotateDiscDragger
PVT "this", SoRotateDiscDragger ---
"callbackList", SoNodeKitListPart [ SoCallback, SoEventCallback ]
PVT "topSeparator", SoSeparator ---
PVT "motionMatrix", SoMatrixTransform ---
PVT "geomSeparator", SoSeparator ---
PVT "rotatorSwitch", SoSwitch ---
"rotator", SoSeparator ---
"rotatorActive", SoSeparator ---
PVT "feedbackSwitch", SoSwitch ---
"feedback", SoSeparator ---
"feedbackActive", SoSeparator ---
.fi
(See SoBaseKit::printTable() for information about the output formatting.)
SoRotateDiscDragger::~SoRotateDiscDragger (void) [protected, virtual]
Protected destructor.
(Dragger classes are derived from SoBase, so they are reference counted
and automatically destroyed when their reference count goes to 0.)
Member Function Documentation
void SoRotateDiscDragger::initClass (void) [static] Initializes type system
for this dragger class.
Application programmers should usually not have to invoke this method,
see documentation of SoInteraction::init().
Reimplemented from SoDragger.
SbBool SoRotateDiscDragger::setUpConnections (SbBool onoff, SbBool
doitalways = 0) [protected, virtual] Sets up all internal connections
for instances of this class.
(This method will usually not be of interest to the application
programmer, unless you want to extend the library with new custom
nodekits or dragger classes. If so, see the SoBaseKit class
documentation.)
Reimplemented from SoInteractionKit.
void SoRotateDiscDragger::startCB (void * f, SoDragger * d) [static,
protected] This API member is considered internal to the library, as it
is not likely to be of interest to the application programmer.
void SoRotateDiscDragger::motionCB (void * f, SoDragger * d) [static,
protected] This API member is considered internal to the library, as it
is not likely to be of interest to the application programmer.
void SoRotateDiscDragger::fieldSensorCB (void * d, SoSensor * s) [static,
protected] This API member is considered internal to the library, as it
is not likely to be of interest to the application programmer.
Reimplemented from SoInteractionKit.
void SoRotateDiscDragger::valueChangedCB (void * f, SoDragger * d) [static,
protected] This API member is considered internal to the library, as it
is not likely to be of interest to the application programmer.
void SoRotateDiscDragger::dragStart (void) [protected] This API member is
considered internal to the library, as it is not likely to be of
interest to the application programmer.
Called when dragger is selected (picked) by the user.
void SoRotateDiscDragger::drag (void) [protected] This API member is
considered internal to the library, as it is not likely to be of
interest to the application programmer.
Called when user drags the mouse after picking the dragger.
void SoRotateDiscDragger::dragFinish (void) [protected] This API member is
considered internal to the library, as it is not likely to be of
interest to the application programmer.
Called when mouse button is released after picking and interacting with
the dragger.
Member Data Documentation
SoSFRotation SoRotateDiscDragger::rotation This field is continuously
updated to contain the rotation of the current direction vector of the
dragger.
The application programmer using this dragger in his scenegraph should
connect the relevant node fields in the scene to this field to make
them follow the dragger orientation.
SoFieldSensor * SoRotateDiscDragger::fieldSensor [protected] This API
member is considered internal to the library, as it is not likely to be
of interest to the application programmer.
Reimplemented from SoInteractionKit.
SbPlaneProjector * SoRotateDiscDragger::planeProj [protected] This API
member is considered internal to the library, as it is not likely to be
of interest to the application programmer.
Author
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