man SoDecomposeVec2f (Fonctions bibliothèques) -

NAME

SoDecomposeVec2f -

SYNOPSIS



#include <Inventor/engines/SoCompose.h>

Inherits SoEngine.

Detailed Description

The SoDecomposeVec2f class is used to decompose 2D vectors into two floats.

Public Member Functions

virtual SoType getTypeId (void) const

virtual const SoFieldData * getFieldData (void) const

virtual const SoEngineOutputData * getOutputData (void) const

Static Public Member Functions

static SoType getClassTypeId (void)

static void * createInstance (void)

static void initClass ()

Public Attributes

SoMFVec2f vector

SoEngineOutput x

SoEngineOutput y

Static Protected Member Functions

static const SoFieldData ** getInputDataPtr (void)

static const SoEngineOutputData ** getOutputDataPtr (void)

Member Function Documentation

SoType SoDecomposeVec2f::getClassTypeId (void) [static]

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

Reimplemented from SoEngine.

SoType SoDecomposeVec2f::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.

Implements SoBase.

const SoFieldData ** SoDecomposeVec2f::getInputDataPtr (void) [static, protected]

Returns the SoFieldData class which holds information about inputs in this engine.

Reimplemented from SoEngine.

const SoEngineOutputData ** SoDecomposeVec2f::getOutputDataPtr (void) [static, protected]

Returns the SoEngineOutputData class which holds information about the outputs in this engine.

Reimplemented from SoEngine.

const SoFieldData * SoDecomposeVec2f::getFieldData (void) const [virtual]

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoFieldContainer.

const SoEngineOutputData * SoDecomposeVec2f::getOutputData (void) const [virtual]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Implements SoEngine.

static void SoDecomposeVec2f::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 SoEngine.

Member Data Documentation

SoMFVec2f SoDecomposeVec2f::vector

Set of input vectors to be decomposed into their coordinate elements.

SoEngineOutput SoDecomposeVec2f::x

(SoMFFloat) First coordinates of the input vectors.

SoEngineOutput SoDecomposeVec2f::y

(SoMFFloat) Second coordinates of the input vectors.

Author

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