SoTransformBoxDragger(3)

NAME
SoTransformBoxDragger - The SoTransformBoxDragger provides a box which can be translated, scaled and rotated.

Here's how the dragger looks with its default geometry in the inactive state:

SYNOPSIS

#include <Inventor/draggers/SoTransformBoxDragger.h>

Inherits SoDragger.

  Public Member Functions
virtual SoType getTypeId (void) const
virtual const SoNodekitCatalog * getNodekitCatalog (void) const
SoTransformBoxDragger (void)

  Static Public Member Functions
static SoType getClassTypeId (void)
static const SoNodekitCatalog * getClassNodekitCatalog (void)
static void initClass (void)

  Public Attributes
SoSFRotation rotation
SoSFVec3f translation
SoSFVec3f scaleFactor

  Protected Member Functions
virtual const SoFieldData * getFieldData (void) const
virtual ~SoTransformBoxDragger (void)
virtual SbBool setUpConnections (SbBool onoff, SbBool doitalways=FALSE)
virtual void setDefaultOnNonWritingFields (void)

  Static Protected Member Functions
static const SoFieldData ** getFieldDataPtr (void)
static const SoNodekitCatalog ** getClassNodekitCatalogPtr (void)
static void invalidateSurroundScaleCB (void *f, SoDragger *d)
static void fieldSensorCB (void *f, SoSensor *s)
static void valueChangedCB (void *f, SoDragger *d)

  Protected Attributes
SoSFNode antiSquish
SoSFNode rotator1
SoSFNode rotator1Rot
SoSFNode rotator1Sep
SoSFNode rotator2
SoSFNode rotator2Rot
SoSFNode rotator2Sep
SoSFNode rotator3
SoSFNode rotator3Rot
SoSFNode rotator3Sep
SoSFNode scaler
SoSFNode surroundScale
SoSFNode translator1
SoSFNode translator1Rot
SoSFNode translator1Sep
SoSFNode translator2
SoSFNode translator2Rot
SoSFNode translator2Sep
SoSFNode translator3
SoSFNode translator3Rot
SoSFNode translator3Sep
SoSFNode translator4
SoSFNode translator4Rot
SoSFNode translator4Sep
SoSFNode translator5
SoSFNode translator5Rot
SoSFNode translator5Sep
SoSFNode translator6
SoSFNode translator6Rot
SoSFNode translator6Sep
SoFieldSensor * rotFieldSensor
SoFieldSensor * translFieldSensor
SoFieldSensor * scaleFieldSensor

  Additional Inherited Members

Detailed Description

The SoTransformBoxDragger provides a box which can be translated, scaled and rotated.

Here's how the dragger looks with its default geometry in the inactive state:

Translate the dragger by clicking and dragging any of the (invisible) sides. Scaling is done by dragging the corner cubes. Only uniform scaling is supported. Rotation is done by dragging any of the 12 beams connecting the corner cubes.

This dragger consists of a rigid framework for doing all the usual interaction operations on scene geometry. The 'user interface' of the dragger is very simple, providing little room for the end-user to make mistakes.

For the application programmer's convenience, the Coin library also provides a manipulator class called SoTransformBoxManip, which wraps the SoTransformBoxDragger into the necessary mechanisms for making direct insertion of this dragger into a scenegraph possible with very little effort.

See also:
    SoTransformBoxManip

Constructor & Destructor Documentation

  SoTransformBoxDragger::SoTransformBoxDragger (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 SoTransformBoxDragger
-->"this"
      "callbackList"
      "topSeparator"
         "motionMatrix"
-->      "surroundScale"
-->      "antiSquish"
-->      "scaler"
-->      "rotator1Sep"
-->         "rotator1Rot"
-->         "rotator1"
-->      "rotator2Sep"
-->         "rotator2Rot"
-->         "rotator2"
-->      "rotator3Sep"
-->         "rotator3Rot"
-->         "rotator3"
-->      "translator1Sep"
-->         "translator1Rot"
-->         "translator1"
-->      "translator2Sep"
-->         "translator2Rot"
-->         "translator2"
-->      "translator3Sep"
-->         "translator3Rot"
-->         "translator3"
-->      "translator4Sep"
-->         "translator4Rot"
-->         "translator4"
-->      "translator5Sep"
-->         "translator5Rot"
-->         "translator5"
-->      "translator6Sep"
-->         "translator6Rot"
-->         "translator6"
         "geomSeparator"

(See SoBaseKit::printDiagram() for information about the output formatting.)

Detailed information on catalog parts:

CLASS SoTransformBoxDragger
PVT   "this",  SoTransformBoxDragger  ---
      "callbackList",  SoNodeKitListPart [ SoCallback, SoEventCallback ]
PVT   "topSeparator",  SoSeparator  ---
PVT   "motionMatrix",  SoMatrixTransform  ---
      "surroundScale",  SoSurroundScale  ---
      "antiSquish",  SoAntiSquish  ---
      "scaler",  SoScaleUniformDragger  ---
PVT   "rotator1Sep",  SoSeparator  ---
PVT   "rotator1Rot",  SoRotation  ---
      "rotator1",  SoRotateCylindricalDragger  ---
PVT   "rotator2Sep",  SoSeparator  ---
PVT   "rotator2Rot",  SoRotation  ---
      "rotator2",  SoRotateCylindricalDragger  ---
PVT   "rotator3Sep",  SoSeparator  ---
PVT   "rotator3Rot",  SoRotation  ---
      "rotator3",  SoRotateCylindricalDragger  ---
PVT   "translator1Sep",  SoSeparator  ---
PVT   "translator1Rot",  SoRotation  ---
      "translator1",  SoTranslate2Dragger  ---
PVT   "translator2Sep",  SoSeparator  ---
PVT   "translator2Rot",  SoRotation  ---
      "translator2",  SoTranslate2Dragger  ---
PVT   "translator3Sep",  SoSeparator  ---
PVT   "translator3Rot",  SoRotation  ---
      "translator3",  SoTranslate2Dragger  ---
PVT   "translator4Sep",  SoSeparator  ---
PVT   "translator4Rot",  SoRotation  ---
      "translator4",  SoTranslate2Dragger  ---
PVT   "translator5Sep",  SoSeparator  ---
PVT   "translator5Rot",  SoRotation  ---
      "translator5",  SoTranslate2Dragger  ---
PVT   "translator6Sep",  SoSeparator  ---
PVT   "translator6Rot",  SoRotation  ---
      "translator6",  SoTranslate2Dragger  ---
PVT   "geomSeparator",  SoSeparator  ---

(See SoBaseKit::printTable() for information about the output formatting.)

  SoTransformBoxDragger::~SoTransformBoxDragger (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

  SoType SoTransformBoxDragger::getTypeId (void) const [virtual]
Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and 'downward' casting.

Usage example:

void foo(SoNode * node)
{
  if (node->getTypeId() == SoFile::getClassTypeId()) {
    SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
  }
}

For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.

For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.

Reimplemented from SoDragger.

  const SoFieldData * SoTransformBoxDragger::getFieldData (void) const [protected], [virtual]
Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoDragger.

  const SoNodekitCatalog * SoTransformBoxDragger::getNodekitCatalog (void) const [virtual]
Returns the nodekit catalog which defines the layout of this class' kit.

Reimplemented from SoDragger.

  SbBool SoTransformBoxDragger::setUpConnections (SbBool onoff, SbBool doitalways = FALSE) [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 SoTransformBoxDragger::setDefaultOnNonWritingFields (void) [protected], [virtual]
(Be aware that this method is unlikely to be of interest to the application programmer who does not want to extend the library with new custom nodekits or draggers. If you indeed are writing extensions, see the information in the SoBaseKit class documentation.)

This is a virtual method, and the code in it should call SoField::setDefault() with argument TRUE on part fields that should not be written upon scenegraph export operations.

This is typically done when:

1.  field value is NULL and part is NULL by default
2.  it is a leaf SoGroup or SoSeparator node with no children
3.  it is a leaf listpart with no children and an SoGroup or SoSeparator container
4.  it is a non-leaf part and it's of SoGroup type and all fields are at their default values
Subclasses should usually override this to do additional settings for new member fields. From the subclass, do remember to call 'upwards' to your superclass' setDefaultOnNonWritingFields() method.
Reimplemented from SoDragger.

  void SoTransformBoxDragger::invalidateSurroundScaleCB (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 SoTransformBoxDragger::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.

  void SoTransformBoxDragger::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.

Member Data Documentation

  SoSFRotation SoTransformBoxDragger::rotation
This field is continuously updated to contain the rotation of the dragger's box.

  SoSFVec3f SoTransformBoxDragger::translation
The dragger's offset position from the local origo.

  SoSFVec3f SoTransformBoxDragger::scaleFactor
Continuously updated to contain the current vector of scaling along the X, Y and Z axes. The three components will always be equal, as this dragger only supports uniform scale operations.

  SoFieldSensor * SoTransformBoxDragger::rotFieldSensor [protected]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

  SoFieldSensor * SoTransformBoxDragger::translFieldSensor [protected]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

  SoFieldSensor * SoTransformBoxDragger::scaleFieldSensor [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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