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> Unreal Engine API Reference > Runtime > Engine > Matinee > UInterpTrack

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UInterpTrack

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Inheritance Hierarchy

References

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

Syntax

class UInterpTrack :
    public UObject,
    public FCurveEdInterface,
    public FInterpEdInputInterface

Variables

	Name	Description
TEnumAsByte< en...	ActiveCondition	Sets the condition that must be met for this track to be enabled
uint32: 1	bDirGroupOnly	If this track can only exist inside the Director group.
uint32: 1	bIsAnimControlTrack	If true, the AActor this track is working on will have BeginAnimControl/FinishAnimControl called on it.
uint32: 1	bIsCollapsed	If this track is collapsed. (Only applies to tracks with subtracks).
uint32: 1	bIsRecording	Whether or not this track is recording in the editor.
uint32: 1	bOnePerGroup	Whether there may only be one of this track in an UInterpGroup.
uint32: 1	bSubTrackOnly	If this track can only exist as a sub track.
uint32: 1	bVisible	Whether or not this track is visible in the editor.
TArray< struct ...	SubTrackGroups	A list of subtrack groups (for editor UI organization only)
TArray< TObject...	SubTracks	A list of subtracks that belong to this track
TArray< struct ...	SupportedSubTracks	A list of supported tracks that can be a subtrack of this track.
TObjectPtr< UTe...	TrackIcon
TSubclassOf< cl...	TrackInstClass
FString	TrackTitle	Title of track type.

Constructors

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

Functions

	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.
bool	AllowStaticActors()
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	ConditionalUpdateTrack ( float NewPosition, UInterpTrackInst* TrInst, bool bJump )	Conditionally calls UpdateTrack depending on whether or not the track is enabled.
void	CreateSubTracks ( bool bCopy )	Creates 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.
void	EnableTrack ( bool bInEnable, bool bPropagateToSubTracks )	Enables this track and optionally, all subtracks.
bool	GetClosestSnapPosition ( float InPosition, TArray< int32 >& IgnoreKeys, float& OutPosition )	Gets the position of the closest key with snapping incorporated.
const FStrin...	GetEdHelperClassName()	Get the name of the class used to help out when adding tracks, keys, etc. in UnrealEd.
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()
UInterpGroup...	GetOwningGroup()
const FStrin...	GetSlateHelperClassName()	Get the name of the class used to help out when adding tracks, keys, etc. in Slate.
void	GetTimeRange ( float& StartTime, float& EndTime )	Gathers the range that spans all keyframes.
float	GetTrackEndTime()
UTexture2D &...	GetTrackIcon()
bool	IsDisabled()	Returns true if this track has been disabled.
bool	IsSelected()	Returns true if this track has been selected.
void	PreviewStopPlayback ( UInterpTrackInst* TrInst )	Called when playback is stopped in Matinee. Useful for stopping sounds etc.
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	SetSelected ( bool bInSelected )	Selects this track
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 FInterpEdInputInterface

		Name	Description
	UObject *...	GetUObject()