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Public Member Functions | Static Public Member Functions | Public Attributes | Protected Member Functions | Static Protected Member Functions | List of all members
SoVRMLOrientationInterpolator Class Reference

The SoVRMLOrientationInterpolator class is used to interpolate orientations.The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium: More...

#include <Inventor/VRMLnodes/SoVRMLOrientationInterpolator.h>

Inheritance diagram for SoVRMLOrientationInterpolator:
SoVRMLInterpolator SoNodeEngine SoNode SoFieldContainer SoBase

Public Member Functions

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

Static Public Member Functions

static SoType getClassTypeId (void)
 This static method returns the SoType object associated with objects of this class.
static void * createInstance (void)
static void initClass (void)
 Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Public Attributes

SoMFRotation keyValue
SoEngineOutput value_changed
- Public Attributes inherited from SoVRMLInterpolator
SoMFFloat key
SoSFFloat set_fraction

Protected Member Functions

virtual const SoFieldDatagetFieldData (void) const
virtual ~SoVRMLOrientationInterpolator (void)
- Protected Member Functions inherited from SoVRMLInterpolator
int getKeyValueIndex (float &interp, int numvalues)
- Protected Member Functions inherited from SoNodeEngine
 SoNodeEngine (void)
virtual ~SoNodeEngine (void)
virtual void evaluate (void)=0
virtual SbBool readInstance (SoInput *in, unsigned short flags)
virtual void inputChanged (SoField *which)
void writeOutputTypes (SoOutput *out)
- Protected Member Functions inherited from SoNode
 SoNode (void)
virtual ~SoNode ()
- Protected Member Functions inherited from SoFieldContainer
 SoFieldContainer (void)
virtual ~SoFieldContainer ()
- Protected Member Functions inherited from SoBase
 SoBase (void)
virtual ~SoBase ()
virtual void destroy (void)
SbBool hasMultipleWriteRefs (void) const
SbBool writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
void writeFooter (SoOutput *out) const
virtual const char * getFileFormatName (void) const
virtual SoNotRec createNotRec (void)

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)
static const SoEngineOutputData ** getOutputDataPtr (void)

Additional Inherited Members

- Public Types inherited from SoNode
enum  NodeType {
  INVENTOR = 0x0000, VRML1 = 0x0001, VRML2 = 0x0002, INVENTOR_1 = 0x0004,
  INVENTOR_2_0 = 0x0008, INVENTOR_2_1 = 0x0010, INVENTOR_2_5 = 0x0020, INVENTOR_2_6 = 0x0040,
  COIN_1_0 = 0x0080, COIN_2_0 = 0x0100, EXTENSION = 0x0200, COIN_2_2 = 0x0400,
  COIN_2_3 = 0x0800, COIN_2_4 = 0x1000, INVENTOR_5_0 = 0x2000, COIN_2_5 = 0x4000,
  COIN_3_0 = 0x8000, INVENTOR_6_0 = 0x10000, COIN_4_0 = 0x20000
}
- Protected Types inherited from SoBase
enum  BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }
- Protected Attributes inherited from SoNode
uint32_t uniqueId
- Static Protected Attributes inherited from SoNode
static uint32_t nextUniqueId = 1
static int nextActionMethodIndex = 0

Detailed Description

The SoVRMLOrientationInterpolator class is used to interpolate orientations.

The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:

OrientationInterpolator {
  eventIn      SFFloat    set_fraction      # (-,)
  exposedField MFFloat    key           []  # (-,)
  exposedField MFRotation keyValue      []  # [-1,1],(-,)
  eventOut     SFRotation value_changed
}

The OrientationInterpolator node interpolates among a list of rotation values specified in the keyValue field. These rotations are absolute in object space and therefore are not cumulative. The keyValue field shall contain exactly as many rotations as there are keyframes in the key field. An orientation represents the final position of an object after a rotation has been applied. An OrientationInterpolator interpolates between two orientations by computing the shortest path on the unit sphere between the two orientations. The interpolation is linear in arc length along this path. The results are undefined if the two orientations are diagonally opposite. If two consecutive keyValue values exist such that the arc length between them is greater than , the interpolation will take place on the arc complement. For example, the interpolation between the orientations (0, 1, 0, 0) and (0, 1, 0, 5.0) is equivalent to the rotation between the orientations (0, 1, 0, 2) and (0, 1, 0, 5.0). A more detailed discussion of interpolators is contained in 4.6.8, Interpolator nodes (http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.8).

Constructor & Destructor Documentation

SoVRMLOrientationInterpolator::SoVRMLOrientationInterpolator ( void  )

Constructor.

SoVRMLOrientationInterpolator::~SoVRMLOrientationInterpolator ( void  )
protectedvirtual

Destructor.

Member Function Documentation

SoType SoVRMLOrientationInterpolator::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 SoVRMLInterpolator.

const SoFieldData ** SoVRMLOrientationInterpolator::getFieldDataPtr ( void  )
staticprotected

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

Reimplemented from SoVRMLInterpolator.

const SoFieldData * SoVRMLOrientationInterpolator::getFieldData ( void  ) const
protectedvirtual

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

Reimplemented from SoVRMLInterpolator.

const SoEngineOutputData ** SoVRMLOrientationInterpolator::getOutputDataPtr ( void  )
staticprotected

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

Reimplemented from SoVRMLInterpolator.

const SoEngineOutputData * SoVRMLOrientationInterpolator::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.

Reimplemented from SoVRMLInterpolator.

Member Data Documentation

SoMFRotation SoVRMLOrientationInterpolator::keyValue

The keyValue vector.

SoEngineOutput SoVRMLOrientationInterpolator::value_changed

The eventOut which is sent every time the interpolator has calculated a new value.


The documentation for this class was generated from the following files:

Copyright © by Kongsberg Oil & Gas Technologies. All rights reserved.

Generated on Sat Oct 12 2013 06:28:01 for Coin by Doxygen 1.8.1.2.