man SoShuttle (Fonctions bibliothèques) -

NAME

SoShuttle -

SYNOPSIS



#include <Inventor/nodes/SoShuttle.h>

Inherits SoTranslation.

Detailed Description

The SoShuttle class is used to oscillate between two translations.

A smooth transition between translation0 and translation1 is created using a cosine function. In the beginning of the cycle, translation0 is used. Halfway through the cycle, the resulting translation equals translation1, and at the end of the cycle, we're at translation0 again.

FILE FORMAT/DEFAULTS: 

    Shuttle {
        translation 0 0 0
        translation0 0 0 0
        translation1 0 0 0
        speed 1
        on TRUE
    }

Public Member Functions

virtual SoType getTypeId (void) const

SoShuttle (void)

virtual void write (SoWriteAction *action)

Static Public Member Functions

static SoType getClassTypeId (void)

static void initClass (void)

Public Attributes

SoSFVec3f translation0

SoSFVec3f translation1

SoSFFloat speed

SoSFBool on

Protected Member Functions

virtual const SoFieldData * getFieldData (void) const

virtual ~SoShuttle ()

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)

Constructor & Destructor Documentation

SoShuttle::SoShuttle (void)

Constructor.

SoShuttle::~SoShuttle () [protected, virtual]

Destructor.

Member Function Documentation

SoType SoShuttle::getClassTypeId (void) [static]

This static method returns the SoType object associated with objects of this class.

Reimplemented from SoTranslation.

SoType SoShuttle::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
    }
    else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) {
      SoGroup * group = (SoGroup *)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 SoTranslation.

const SoFieldData ** SoShuttle::getFieldDataPtr (void) [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 SoTranslation.

const SoFieldData * SoShuttle::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 SoTranslation.

void SoShuttle::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 SoTranslation.

void SoShuttle::write (SoWriteAction * action) [virtual]

Action method for SoWriteAction.

Writes out a node object, and any connected nodes, engines etc, if necessary.

Reimplemented from SoNode.

Member Data Documentation

SoSFVec3f SoShuttle::translation0

Translation at the start and end of the cycle. Default value is (0, 0, 0).

SoSFVec3f SoShuttle::translation1

Translation at the middle of the cycle. Default value is (0, 0, 0).

SoSFFloat SoShuttle::speed

Number of cycles per second. Default value is 1.

SoSFBool SoShuttle::on

Toggles animation on or off. Defauls to TRUE.

Author

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