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SoTransformManip Class Reference

The SoTransformManip class is used to manipulate transformations. More...

#include <Inventor/manips/SoTransformManip.h>

Inheritance diagram for SoTransformManip::

SoTransform SoTransformation SoNode SoFieldContainer SoBase SoCenterballManip SoHandleBoxManip SoJackManip SoTabBoxManip SoTrackballManip SoTransformBoxManip SoTransformerManip List of all members.

Public Methods

 SoTransformManip (void)
SoDragger * getDragger (void)
SbBool replaceNode (SoPath *p)
SbBool replaceManip (SoPath *p, SoTransform *newone) const
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void handleEvent (SoHandleEventAction *action)
virtual void pick (SoPickAction *action)
virtual void search (SoSearchAction *action)
virtual SoChildList * getChildren (void) const

Static Public Methods

void initClass (void)

Protected Methods

 ~SoTransformManip ()
void setDragger (SoDragger *newdragger)
virtual void copyContents (const SoFieldContainer *fromfc, SbBool copyconnections)
void attachSensors (const SbBool onoff)

Static Protected Methods

void transferFieldValues (const SoTransform *from, SoTransform *to)
void valueChangedCB (void *f, SoDragger *d)
void fieldSensorCB (void *f, SoSensor *d)

Protected Attributes

SoFieldSensor * rotateFieldSensor
SoFieldSensor * translFieldSensor
SoFieldSensor * scaleFieldSensor
SoFieldSensor * centerFieldSensor
SoFieldSensor * scaleOrientFieldSensor
SoChildList * children

Detailed Description

The SoTransformManip class is used to manipulate transformations.

A manipulator is used by replacing the node you want to edit in the graph with the manipulator. Draggers are used to to manipulate the node. When manipulation is finished, the node is put back into the graph, replacing the manipulator.

The SoTransformManip class is an abstract class which should not be used directly -- use one of it's subclasses.

Constructor & Destructor Documentation

SoTransformManip::SoTransformManip (  void ) 
 

The constructor.

SoTransformManip::~SoTransformManip (  )  [protected]
 

The destructor.

Member Function Documentation

void SoTransformManip::initClass (  void )  [static]
 

Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoTransform.

Reimplemented in SoCenterballManip, SoHandleBoxManip, SoJackManip, SoTabBoxManip, SoTrackballManip, SoTransformBoxManip, and SoTransformerManip.

SoDragger * SoTransformManip::getDragger (  void ) 
 

Returns the dragger used by this manipulator.

SbBool SoTransformManip::replaceNode (  SoPath * path ) 
 

Replaces a node at the tail end of path with this manipulator. The node must be an instance of a node class derived from SoTransform.

The manipulator will when inserted automatically copy the field data from the node, to make it initially affect the state in the same way as the node.

Returns TRUE if successful, and FALSE if the given node could not be replaced with the manipulator. The operation will for instance fail if the tail node of the given path is not of SoTransform type, or for any other condition where it is not possible to replace the node with this manipulator.

SbBool SoTransformManip::replaceManip (  SoPath * path,
SoTransform * newone
)  const
 

Replaces this manipulator from the position specified by path with newnode. If newnode is NULL, an SoTransform will be created for you.

void SoTransformManip::doAction (  SoAction * action )  [virtual]
 

This function performs the typical operation of a node for any action.

Reimplemented from SoTransform.

void SoTransformManip::callback (  SoCallbackAction * action )  [virtual]
 

Action method for SoCallbackAction.

Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.

Reimplemented from SoTransform.

void SoTransformManip::GLRender (  SoGLRenderAction * action )  [virtual]
 

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoTransform.

void SoTransformManip::getBoundingBox (  SoGetBoundingBoxAction * action )  [virtual]
 

Action method for the SoGetBoundingBoxAction.

Calculates bounding box and center coordinates for node and modifies the values of the action to encompass the bounding box for this node and to shift the center point for the scene more towards the one for this node.

Nodes influencing how geometry nodes calculates their bounding box also overrides this method to change the relevant state variables.

Reimplemented from SoTransform.

void SoTransformManip::getMatrix (  SoGetMatrixAction * action )  [virtual]
 

Action method for SoGetMatrixAction.

Updates action by accumulating with the transformation matrix of this node (if any).

Reimplemented from SoTransform.

void SoTransformManip::handleEvent (  SoHandleEventAction * action )  [virtual]
 

Action method for SoHandleEventAction.

Inspects the event data from action, and processes it if it is something which this node should react to.

Nodes influencing relevant state variables for how event handling is done also overrides this method.

Reimplemented from SoNode.

void SoTransformManip::pick (  SoPickAction * action )  [virtual]
 

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoTransform.

void SoTransformManip::search (  SoSearchAction * action )  [virtual]
 

Action method for SoSearchAction.

Compares the search criteria from the action to see if this node is a match. Searching is done by matching up all criteria set up in the SoSearchAction -- if any of the requested criteria is a miss, the search is not deemed successful for the node.

See also:
SoSearchAction

Reimplemented from SoNode.

SoChildList * SoTransformManip::getChildren (  void )  const [virtual]
 

Returns the children of this node. This node only has the dragger as a child.

Reimplemented from SoNode.

void SoTransformManip::setDragger (  SoDragger * newDragger )  [protected]
 

Sets up the dragger instance to be controlled by this manipulator.

Reimplemented in SoCenterballManip.

void SoTransformManip::copyContents (  const SoFieldContainer * fromfc,
SbBool copyconnections
)  [protected, virtual]
 

Makes a deep copy of all data of from into this instance, except external scenegraph references if copyconnections is FALSE.

This is the method that should be overridden by subclasses which needs to account for internal data that are not handled automatically.

Make sure that when you override the copyContents() method in your extension class that you also make it call upwards to it's parent superclass in the inheritance hierarchy, as copyContents() in for instance SoNode and SoFieldContainer does important work. It should go something like this: 

  void
  MyCoinExtensionNode::copyContents(const SoFieldContainer * from,
                                    SbBool copyconnections)
  {
    // let parent superclasses do their thing (copy fields, copy
    // instance name, etc etc)
    SoNode::copyContents(from, copyconnections);

    // [..then copy internal data..]
  }

Reimplemented from SoNode.

void SoTransformManip::transferFieldValues (  const SoTransform * from,
SoTransform * to
)  [static, protected]
 

For internal use only.

void SoTransformManip::valueChangedCB (  void * f,
SoDragger * d
)  [static, protected]
 

For internal use only.

Reimplemented in SoCenterballManip.

void SoTransformManip::fieldSensorCB (  void * f,
SoSensor * s
)  [static, protected]
 

For internal use only.

Reimplemented in SoCenterballManip.

void SoTransformManip::attachSensors (  const SbBool onoff )  [protected]
 

Can be used by subclasses to attach/detach field sensors.

Member Data Documentation

SoFieldSensor * SoTransformManip::rotateFieldSensor [protected]
 

For internal use only.

SoFieldSensor * SoTransformManip::translFieldSensor [protected]
 

For internal use only.

SoFieldSensor * SoTransformManip::scaleFieldSensor [protected]
 

For internal use only.

SoFieldSensor * SoTransformManip::centerFieldSensor [protected]
 

For internal use only.

SoFieldSensor * SoTransformManip::scaleOrientFieldSensor [protected]
 

For internal use only.

SoChildList * SoTransformManip::children [protected]
 

For internal use only.

The documentation for this class was generated from the following files:
Generated at Tue Mar 5 03:31:32 2002 for Coin by doxygen1.2.9 written by Dimitri van Heesch, © 1997-2001