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NL3D::CTrackSampledQuat Class Reference

This track is supposed to be Lighter in memory than CTrackKeyFramerTCBQuat, and also is maybe faster. +More... +

+#include <track_sampled_quat.h> +

+

Inheritance diagram for NL3D::CTrackSampledQuat: +

+ +NL3D::CTrackSampledCommon +NL3D::ITrack +NLMISC::IStreamable +NL3D::UTrack +NLMISC::IClassable + +List of all members. + + + + + + + + + + + + + + + + +

Public Methods

 CTrackSampledQuat ()
 Constructor. More...

virtual ~CTrackSampledQuat ()
 NLMISC_DECLARE_CLASS (CTrackSampledQuat)
void build (const std::vector< uint16 > &timeList, const std::vector< CQuat > &keyList, float beginTime, float endTime)
 Build the track from a list of CKey. More...

virtual void eval (const TAnimationTime &date)
 Evaluation of the value of the track for this time. More...

virtual const IAnimatedValue & getValue () const
 Get the track current value. More...

virtual void serial (NLMISC::IStream &f)

Protected Attributes

CAnimatedValueQuat _Value
NLMISC::CObjectVector< CQuatPack,
+ false > 		_Keys
+

Detailed Description

+This track is supposed to be Lighter in memory than CTrackKeyFramerTCBQuat, and also is maybe faster. +

+The track is an oversampled version of CTrackKeyFramerTCBQuat (or any quat interpolator), to 30 fps for example, but each key is 9 bytes in memory, instead of 96. Only linear interpolation is performed (use CQuat::slerp) between 2 keys. And Keys are precomputed to be correctly on the same quaternion hemisphere from the preceding to the next. +

+9 bytes per key is achieved by encoding this way: 1 byte for the length/key time, measured in samples, and not in second (hence we can skip at max 255 keys). 8 byte for a light normalized quaternion: x,y,z,w are stored in 16 bits. +

+

+Author:
+Lionel Berenguier , Nevrax France
+Date:
+2002
+

+ +

+Definition at line 59 of file track_sampled_quat.h.

Constructor & Destructor Documentation

+

+ + + + +
+ + + + + + + + + +
NL3D::CTrackSampledQuat::CTrackSampledQuat (   ) 
+
+ + + + + +
+   + + +

+Constructor. +

+ +

+Definition at line 109 of file track_sampled_quat.cpp.

+

+ + + + +
+ + + + + + + + + +
NL3D::CTrackSampledQuat::~CTrackSampledQuat (   )  [virtual]
+
+ + + + + +
+   + + +

+ +

+Definition at line 114 of file track_sampled_quat.cpp.

+

Member Function Documentation

+

+ + + + +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
void NL3D::CTrackSampledQuat::build ( const std::vector< uint16 > &   timeList,
const std::vector< CQuat > &   keyList,
float   beginTime,
float   endTime
) 
+
+ + + + + +
+   + + +

+Build the track from a list of CKey. +

+They must be already precompiled. ie they must all lies on the same hemisphere from prec key. nlassert if ! same length.

+Parameters:
+ + + + + +
timeList  +the list of key time. First must be ==0. nlassert if difference between 2 keys is > 255
keyList  +the list of keys, not yet compressed to CQuatPack (done internally)
beginTime  +map to the timeList[0] time.
endTime  +map to the timeList[size-1] time.
+
+

+Definition at line 159 of file track_sampled_quat.cpp. +

+References _Keys, NL3D::CTrackSampledCommon::_TimeBlocks, NLMISC::CObjectVector< CTimeBlock >::clear, NLMISC::CObjectVector< CQuatPack, false >::clear, nlassert, and NLMISC::CObjectVector< CQuatPack, false >::resize.

+

+ + + + +
+ + + + + + + + + + +
void NL3D::CTrackSampledQuat::eval ( const TAnimationTime &   date )  [virtual]
+
+ + + + + +
+   + + +

+Evaluation of the value of the track for this time. +

+The result is internaly stored to simplify access at the polymorphic values. To get the value, call ITrack::getValue(). +

+Implements NL3D::ITrack. +

+Definition at line 186 of file track_sampled_quat.cpp. +

+References _Keys, _Value, NL3D::CTrackSampledCommon::EvalDiscard, NL3D::CTrackSampledCommon::EvalInterpolate, NL3D::CTrackSampledCommon::EvalKey0, NL3D::CTrackSampledCommon::evalTime, nlstop, NLMISC::CObjectVector< CQuatPack, false >::size, NL3D::TAnimationTime, and NL3D::CTrackSampledCommon::TEvalType.

+

+ + + + +
+ + + + + + + + + +
const IAnimatedValue & NL3D::CTrackSampledQuat::getValue (   )  const [virtual]
+
+ + + + + +
+   + + +

+Get the track current value. +

+

+Returns:
+the last value evaluated by ITrack::eval().
+

+Implements NL3D::ITrack. +

+Definition at line 119 of file track_sampled_quat.cpp. +

+References _Value.

+

+ + + + +
+ + + + + + + + + + +
NL3D::CTrackSampledQuat::NLMISC_DECLARE_CLASS ( CTrackSampledQuat   ) 
+
+ + + + + +
+   + + +

+

+

+ + + + +
+ + + + + + + + + + +
void NL3D::CTrackSampledQuat::serial ( NLMISC::IStream &   f )  [virtual]
+
+ + + + + +
+   + + +

+ +

+Implements NLMISC::IStreamable. +

+Definition at line 125 of file track_sampled_quat.cpp. +

+References NL3D::CTrackSampledCommon::_BeginTime, NL3D::CTrackSampledCommon::_DeltaTime, NL3D::CTrackSampledCommon::_EndTime, _Keys, NL3D::CTrackSampledCommon::_LoopMode, NL3D::CTrackSampledCommon::_OODeltaTime, NL3D::CTrackSampledCommon::_OOTotalRange, NL3D::CTrackSampledCommon::_TimeBlocks, NL3D::CTrackSampledCommon::_TotalRange, NLMISC::IStream::serial, and NLMISC::IStream::serialVersion.

+

Member Data Documentation

+

+ + + + +
+ + +
NLMISC::CObjectVector<CQuatPack, false> NL3D::CTrackSampledQuat::_Keys [protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 131 of file track_sampled_quat.h. +

+Referenced by build, eval, and serial.

+

+ + + + +
+ + +
CAnimatedValueQuat NL3D::CTrackSampledQuat::_Value [protected] +
+
+ + + + + +
+   + + +

+ +

+Definition at line 128 of file track_sampled_quat.h. +

+Referenced by eval, and getValue.

+

The documentation for this class was generated from the following files: + + + +
                                                                                                                                                                    +
+ + -- cgit v1.2.1