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> Unreal Engine API Reference > Runtime > Engine > Matinee > UInterpTrackMove

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UInterpTrackMove

Track containing data for moving an actor around over time.

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Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UInterpTrack

UInterpTrackMove

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/Matinee/InterpTrackMove.h
Include	#include "Matinee/InterpTrackMove.h"

Syntax

class UInterpTrackMove : public UInterpTrack

Remarks

Track containing data for moving an actor around over time.

Variables

	Name	Description
float	AngCurveTension	Controls the tightness of the curve for the rotation path.
uint32: 1	bDisableMovement	Disable previewing of this track - will always position AActor at Time=0.0.
uint32: 1	bHide3DTrack	If true, 3D representation of this track in the 3D viewport is disabled.
uint32: 1	bShowArrowAtKeys	In the editor, show a small arrow at each keyframe indicating the rotation at that key.
uint32: 1	bShowRotationOnCurveEd	If false, when this track is displayed on the Curve Editor in Matinee, do not show the Rotation tracks.
uint32: 1	bShowTranslationOnCurveEd	If false, when this track is displayed on the Curve Editor in Matinee, do not show the Translation tracks.
uint32: 1	bUseQuatInterpolation	Use a Quaternion linear interpolation between keys.
FInterpCurveVec...	EulerTrack	Actual rotation keyframe data, stored as Euler angles in degrees, for easy editing on curve.
float	LinCurveTension	Controls the tightness of the curve for the translation path.
FName	LookAtGroupName	When using IMR_LookAtGroup, specifies the Group which this track should always point its actor at.
FInterpLookupTr...	LookupTrack
FInterpCurveVec...	PosTrack	Actual position keyframe data.
TEnumAsByte< en...	RotMode

Constructors

	Name	Description
	UInterpTrackMove ( const FObjectInitializer& ObjectIn... )

Functions

	Name	Description
int32	CalcSubIndex ( bool bPos, int32 InIndex )
void	ClearLookupKeyGroupName ( int32 KeyIndex )	Clears the lookup group name for a movement track keyframe.
void	ComputeWorldSpaceKeyTransform ( UInterpTrackInstMove* MoveTrac..., const FVector& RelativeSpacePos, const FRotator& RelativeSpaceRot, FVector& OutPos, FRotator& OutRot )	Compute the world space coordinates for a key; handles keys that use IMF_RelativeToInitial, basing, etc.
FVector	EvalPositionAtTime ( UInterpTrackInst* TrInst, float Time )	Replacement for the PosTrack eval function that uses GetKeyframePosition.
FVector	EvalRotationAtTime ( UInterpTrackInst* TrInst, float Time )	Replacement for the EulerTrack eval function that uses GetKeyframeRotation.
float	FindBestMatchingTimefromPosition ( UInterpTrackInst* TrInst, const FVector& Pos, int32 StartKeyIndex, EAxisList::Type WeightAxis )	Find Best Matching Time From Position This function simply try to find Time from input Position using simple Lerp
void	GetKeyframePosition ( UInterpTrackInst* TrInst, int32 KeyIndex, float& OutTime, FVector& OutPos, FVector* OutArriveTangent, FVector* OutLeaveTangent )	Get the position of a keyframe given its key index.
void	GetKeyframeRotation ( UInterpTrackInst* TrInst, int32 KeyIndex, float& OutTime, FVector& OutRot, FVector* OutArriveTangent, FVector* OutLeaveTangent )	Get the rotation of a keyframe given its key index.
void	GetKeyTransformAtTime ( UInterpTrackInst* TrInst, float Time, FVector& OutPos, FRotator& OutRot )	Get the keyed relative transform at the specified time - this does not include any special rotation mode support.
bool	GetLocationAtTime ( UInterpTrackInst* TrInst, float Time, FVector& OutPos, FRotator& OutRot )	Calculate the world-space location/rotation at the specified time, including.
FRotator	GetLookAtRotation ( UInterpTrackInst* TrInst )	Calculate the world space rotation needed to look at the current LookAtGroupName target.
FName	GetLookupKeyGroupName ( int32 KeyIndex )
FTransform	GetMoveRefFrame ( UInterpTrackInstMove* MoveTrac... )	Return the reference frame that the animation is currently working within.
void	SetLookupKeyGroupName ( int32 KeyIndex, const FName& NewGroupName )	Sets the lookup group name for a movement track keyframe.
void	SplitTranslationAndRotation()	Split this movment track in to seperate tracks for translation and rotation

Overridden from UInterpTrack

	Name	Description
int32	AddChildKeyframe ( UInterpTrack* ChildTrack, float Time, UInterpTrackInst* TrackInst, EInterpCurveMode InitInterpMode )	Adds a keyframe to a child track
int32	AddKeyframe ( float Time, UInterpTrackInst* TrInst, EInterpCurveMode InitInterpMode )	Adds a keyframe at the given time to the track.
void	ApplyWorldOffset ( const FVector& InOffset, bool bWorldShift )	Called by owning actor on position shifting
bool	CanAddChildKeyframe ( UInterpTrackInst* TrackInst )	Can a keyframe be added to a child track?
bool	CanAddKeyframe ( UInterpTrackInst* TrackInst )	Can a keyframe be added to the track?
void	ConditionalPreviewUpdateTrack ( float NewPosition, UInterpTrackInst* TrInst )	Conditionally calls PreviewUpdateTrack depending on whether or not the track is enabled.
void	CreateSubTracks ( bool bCopy )	Create and adds subtracks to this track
void	DrawTrack ( FCanvas* Canvas, UInterpGroup* Group, const FInterpTrackDrawParams& Para... )	Draw this track with the specified parameters
int32	DuplicateKeyframe ( int32 KeyIndex, float NewKeyTime, UInterpTrack* ToTrack )	Duplicates the given key.
bool	GetClosestSnapPosition ( float InPosition, TArray< int32 >& IgnoreKeys, float& OutPosition )	Gets the position of the closest key with snapping incorporated.
FColor	GetKeyframeColor ( int32 KeyIndex )
int32	GetKeyframeIndex ( float KeyTime )	Get the index of the keyframe with the given time.
float	GetKeyframeTime ( int32 KeyIndex )	Get the time of the keyframe with the given index.
int32	GetNumKeyframes()
void	GetTimeRange ( float& StartTime, float& EndTime )	Gathers the range that spans all keyframes.
float	GetTrackEndTime()
UTexture2D &...	GetTrackIcon()
void	PreviewUpdateTrack ( float NewPosition, UInterpTrackInst* TrInst )	Updates the instance of this track based on the new position. This is for editor preview.
void	ReduceKeys ( float IntervalStart, float IntervalEnd, float Tolerance )	Reduce Keys within Tolerance
void	RemoveKeyframe ( int32 KeyIndex )	Removes the given key from the array of keys in the track.
void	Render3DTrack ( UInterpTrackInst* TrInst, const FSceneView* View, FPrimitiveDrawInterface* PDI, int32 TrackIndex, const FColor& TrackColor, TArray< struct FInterpEdSelKey >& ... )	For drawing track information into the 3D scene.
int32	SetKeyframeTime ( int32 KeyIndex, float NewKeyTime, bool bUpdateOrder )	Changes the time of the given key with the new given time.
void	SetTrackToSensibleDefault()	Set this track to sensible default values. Called when track is first created.
void	UpdateChildKeyframe ( UInterpTrack* ChildTrack, int32 KeyIndex, UInterpTrackInst* TrackInst )	Updates a child track keyframe
void	UpdateKeyframe ( int32 KeyIndex, UInterpTrackInst* TrInst )	Changes the value of an existing keyframe.
void	UpdateTrack ( float NewPosition, UInterpTrackInst* TrInst, bool bJump )	Updates the instance of this track based on the new position.

Overridden from UObject

		Name	Description
	void	PostEditChangeProperty ( FPropertyChangedEvent& PropertyCha... )	Called when a property on this object has been modified externally
	void	PostEditImport()	Called after importing property values for this object (paste, duplicate or .t3d import) Allow the object to perform any cleanup for properties which shouldn't be duplicated or are unsupported by the script serialization

Overridden from FCurveEdInterface

	Name	Description
int32	CreateNewKey ( float KeyIn )	Add a new key to the curve with the specified input.
void	DeleteKey ( int32 KeyIndex )	Remove the specified key from the curve. KeyIndex must be within range ie >=0 and < NumKeys.
float	EvalSub ( int32 SubIndex, float InVal )	Evaluate a subcurve at an arbitary point.
void	GetInRange ( float& MinIn, float& MaxIn )	Get input range of keys. Outside this region curve continues constantly the start/end values.
FColor	GetKeyColor ( int32 SubIndex, int32 KeyIndex, const FColor& CurveColor )	Provides the color for the given key at the given sub-curve.
float	GetKeyIn ( int32 KeyIndex )	Get the input value for the Key with the specified index.
EInterpCurve...	GetKeyInterpMode ( int32 KeyIndex )	Get the interpolation mode of the specified keyframe.
float	GetKeyOut ( int32 SubIndex, int32 KeyIndex )	Get the output value for the key with the specified index on the specified sub-curve.
int32	GetNumKeys()	Get number of keyframes in curve.
int32	GetNumSubCurves()	Get number of 'sub curves' in this Curve.
void	GetOutRange ( float& MinOut, float& MaxOut )	Get overall range of output values.
FColor	GetSubCurveButtonColor ( int32 SubCurveIndex, bool bIsSubCurveHidden )	Provides the color for the sub-curve button that is present on the curve tab.
void	GetTangents ( int32 SubIndex, int32 KeyIndex, float& ArriveTangent, float& LeaveTangent )	Get the incoming and outgoing tangent for the given subcurve and key.
int32	SetKeyIn ( int32 KeyIndex, float NewInVal )	Set the input value of the specified Key.
void	SetKeyInterpMode ( int32 KeyIndex, EInterpCurveMode NewMode )	Set the method to use for interpolating between the give keyframe and the next one.
void	SetKeyOut ( int32 SubIndex, int32 KeyIndex, float NewOutVal )	Set the output values of the specified key.
void	SetTangents ( int32 SubIndex, int32 KeyIndex, float ArriveTangent, float LeaveTangent )	Set the incoming and outgoing tangent for the given subcurve and key.