#include<kfcurveutils.h>

List of all members.

Detailed Description

Curve utilities.

This class groups methods allowing to test and convert aKFCurveinto anotherKFCurvedata set. Easier to use for some applications.

The class is used to encapsulate the methods and enums, helping to not further clog the global space.

As an example, some 3D software use a single interpolation or tangent mode for a whole curve. By providing a way to make sure theKFCurveto be converted uses a single interpolation and tangent for all keys, the conversion task is made a lot easier.

Definition at line65of filekfcurveutils.h.

Error Management
enum	EError
	Status codes.More...
staticKError&	GetError()
	Retrieve error object.
staticEError	GetLastErrorID()
	Get last error code.
static const char *	GetLastErrorString()
	Get last error code.
Public Types
enum	EInterpolationAndTangeant
	Enum useful for methodKFCurveUtils::GetInterpolationAndTangeantCount().More...
Static Public Member Functions
static bool	CompareCurve(KFCurve*pCurveA,KFCurve*pCurveB)
	Compare two curves.
static bool	GetGlobalInterpolation(kFCurveInterpolation&pGlobalInterpolation,KFCurve&pCurve)
	Check if all keys of a curve are of the same interpolation type.
static bool	GetGlobalTangeant(kFCurveTangeantMode&pGlobalTangent,KFCurve&pCurve)
	Check if all keys of a curve are of the same tangent mode.
static bool	GetInterpolationAndTangeantCount(KFCurve&pCurve, int pArray[eINTERPOLATION_AND_TANGEANT_COUNT])
	Get the number of keys in each category of interpolation type and tangent mode.
staticKFCurveNode&	ConvertCurveInterpolationRecursive(kFCurveInterpolation pTargetGlobalInterpolation, kFCurveTangeantMode pTargetGlobalTangent,KFCurveNode&pCurveNode)
	Convert all curve keys contained in the currentKFCurveNodeand its children to the tangent mode and interpolation specified.
staticKFCurve&	ConvertCurve(KFCurve&pSourceCurve,KFCurve&pTargetCurve, kFCurveInterpolation pTargetGlobalInterpolation, kFCurveTangeantMode pTargetGlobalTangent,KTimepFramePeriod)
	Convert curve keys so they are of a single interpolation type and a single tangent mode.
static void	Resample(KFCurve&pSourceCurve,KFCurve&pTargetCurve,KTime&pStart,KTime&pStop,KTime&pPeriod, kFCurveInterpolation pInterpolation, kFCurveTangeantMode pTangentMode, bool pAddStopKey=false)
	Resample a curve.
static void	Resample(KFCurve&pSourceCurve,KFCurve&pTargetCurve,KTime&pStart,KTime&pStop,KTime&pPeriod, bool pAddStopKey=false)
	Resample a curve.
static void	Resample(KFCurve&pCurve,KTimepPeriod,KTimepStart=KTIME_MINUS_INFINITE,KTimepStop=KTIME_INFINITE, bool pKeysOnFrame=false)
	Resample a curve.
static void	Merge(KFCurve&pCurveIn,KFCurve&pCurveMerge,KFCurve&pCurveOut)
	MergepCurveInandpCurveMergeintopCurveOut.
staticKTime	FindTimeOffsetBefore(KFCurvepCurve,KTime&pTime)
	Compute time difference between the first key of a curve and a given time.
staticKTime	FindTimeOffsetAfter(KFCurvepCurve,KTime&pTime)
	Compute time difference between the last key of a curve and a given time.

Member Enumeration Documentation

enumEInterpolationAndTangeant

Enum useful for methodKFCurveUtils::GetInterpolationAndTangeantCount().

Definition at line94of filekfcurveutils.h.

enumEError

Status codes.

Definition at line228of filekfcurveutils.h.

Member Function Documentation

static bool CompareCurve	(	KFCurve*	pCurveA,
		KFCurve*	pCurveB
	)			[static]

Compare two curves.

Returns:

trueif curves are equivalent.

static bool GetGlobalInterpolation	(	kFCurveInterpolation&	pGlobalInterpolation,
		KFCurve&	pCurve
	)			[static]

Check if all keys of a curve are of the same interpolation type.

Parameters:

	pGlobalInterpolation	Receives interpolation type of all keys if function returnstrue, undetermined otherwise.
	pCurve	Curve to scan.

Returns:

trueif there is at least one key and all keys are of the same interpolation type,falseotherwise.

static bool GetGlobalTangeant	(	kFCurveTangeantMode&	pGlobalTangent,
		KFCurve&	pCurve
	)			[static]

Check if all keys of a curve are of the same tangent mode.

Parameters:

	pGlobalTangent	Receives tangent mode of all keys if function returnstrue, undetermined otherwise.
	pCurve	Curve to scan.

Returns:

trueif there is at least one key and all keys are of the same interpolation type,falseotherwise.

static bool GetInterpolationAndTangeantCount	(	KFCurve&	pCurve,
		int	pArray[eINTERPOLATION_AND_TANGEANT_COUNT]
	)			[static]

Get the number of keys in each category of interpolation type and tangent mode.

staticKFCurveNode&ConvertCurveInterpolationRecursive	(	kFCurveInterpolation	pTargetGlobalInterpolation,
		kFCurveTangeantMode	pTargetGlobalTangent,
		KFCurveNode&	pCurveNode
	)			[static]

Convert all curve keys contained in the currentKFCurveNodeand its children to the tangent mode and interpolation specified.

Parameters:

	pTargetGlobalInterpolation	Interpolation type given to all keys.
	pTargetGlobalTangent	Tangent mode given to all keys if interpolation type is cubic.
	pCurveNode	Curve node to be modified.

Returns:

Reference to pCurveNode parameter.

Remarks:

In most cases, this function modifies the curve shape between the keys.

staticKFCurve&ConvertCurve	(	KFCurve&	pSourceCurve,
		KFCurve&	pTargetCurve,
		kFCurveInterpolation	pTargetGlobalInterpolation,
		kFCurveTangeantMode	pTargetGlobalTangent,
		KTime	pFramePeriod
	)			[static]

Convert curve keys so they are of a single interpolation type and a single tangent mode.

As opposed to functionKFCurveUtils::ConvertCurve(), this function preserves the curve shape between the keys. Part of the curve is resampled if needed.

Parameters:

	pSourceCurve	Source curve.
	pTargetCurve	Curve to be modified.
	pTargetGlobalInterpolation	Interpolation type given to all keys.
	pTargetGlobalTangent	Tangent mode given to all keys if interpolation type is cubic.
	pFramePeriod	Resampling period in segments to resample.

Returns:

Reference to pTargetCurve parameter.

static void Resample	(	KFCurve&	pSourceCurve,
		KFCurve&	pTargetCurve,
		KTime&	pStart,
		KTime&	pStop,
		KTime&	pPeriod,
		kFCurveInterpolation	pInterpolation,
		kFCurveTangeantMode	pTangentMode,
		bool	pAddStopKey=false
	)			[static]

Resample a curve.

Interpolation type of each created curve key is set equal to parameterpInterpolation. Tangent mode of each created curve key is set equal topTangentMode.

Parameters:

	pSourceCurve	Source curve.
	pTargetCurve	Curve to be modified.
	pStart	Start time of resampling.
	pStop	Stop time of resampling.
	pPeriod	Resampling period.
	pInterpolation	Interpolation type given to all keys.
	pTangentMode	Tangent mode given to all keys if interpolation type is cubic.
	pAddStopKey	Set totrueto make sure a key is added exactly at time pStop.

static void Resample	(	KFCurve&	pSourceCurve,
		KFCurve&	pTargetCurve,
		KTime&	pStart,
		KTime&	pStop,
		KTime&	pPeriod,
		bool	pAddStopKey=false
	)			[static]

Resample a curve.

Interpolation type of each created curve key is set equal to the interpolation type of the closest curve key encountered. Tangent mode of each created curve key is set equal to the tangent mode of the closest curve key encountered.

Parameters:

	pSourceCurve	Source curve.
	pTargetCurve	Curve to be modified.
	pStart	Start time of resampling.
	pStop	Stop time of resampling.
	pPeriod	Resampling period.
	pAddStopKey	Set totrueto make sure a key is added exactly at time pStop.

static void Resample	(	KFCurve&	pCurve,
		KTime	pPeriod,
		KTime	pStart=KTIME_MINUS_INFINITE,
		KTime	pStop=KTIME_INFINITE,
		bool	pKeysOnFrame=false
	)			[static]

Resample a curve.

Interpolation type of each created curve key is set to KFCURVE_INTERPOLATION_CUBIC. Tangent mode of each created curve key is set to KFCURVE_TANGEANT_AUTO.

Parameters:

	pCurve	Curve to be modified.
	pPeriod	Resampling period.
	pStart	Start time of resampling. Set to KTIME_MINUS_INFINITE for whole curve.
	pStop	Stop time of resampling. Set to KTIME_INFINITE for whole curve.
	pKeysOnFrame	Set totrueif keys are to be added on frames.

static void Merge	(	KFCurve&	pCurveIn,
		KFCurve&	pCurveMerge,
		KFCurve&	pCurveOut
	)			[static]

MergepCurveInandpCurveMergeintopCurveOut.

CopypCurveIninpCurveOutand then overwrite keys in the time span covered bypCurveMerge.

Parameters:

	pCurveIn	Source curve.
	pCurveMerge	Curve containing keys to merge in source curve.
	pCurveOut	Destination for source curve and keys to merge.

staticKTimeFindTimeOffsetBefore	(	KFCurve	pCurve,
		KTime&	pTime
	)			[static]

Compute time difference between the first key of a curve and a given time.

staticKTimeFindTimeOffsetAfter	(	KFCurve	pCurve,
		KTime&	pTime
	)			[static]

Compute time difference between the last key of a curve and a given time.

staticKError&GetError

(

)

[static]

Retrieve error object.

staticEErrorGetLastErrorID

(

)

[static]

Get last error code.

static const char* GetLastErrorString

(

)

[static]

Get last error code.