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> Unreal Engine API Reference > Plugins > Niagara > UNiagaraDataInterfaceSpline

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UNiagaraDataInterfaceSpline

Data Interface allowing sampling of in-world spline components.

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Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UNiagaraMergeable

UNiagaraDataInterfaceBase

UNiagaraDataInterface

UNiagaraDataInterfaceSpline

References

Module	Niagara
Header	/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraDataInterfaceSpline.h
Include	#include "NiagaraDataInterfaceSpline.h"

Syntax

[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(EditInlineNew, Category="Splines", Meta=(DisplayName="Spline"))
class UNiagaraDataInterfaceSpline : public UNiagaraDataInterface

Remarks

Data Interface allowing sampling of in-world spline components. Note that this data interface is very experimental.

Variables

		Name	Description
	AActor *	Source	The source actor from which to sample.

Constructors

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

Functions

		Name	Description
	void	FindClosestUnitDistanceFromPositionWS ( FVectorVMContext& Context )
	void	GetLocalToWorld ( FVectorVMContext& Context )
	void	GetLocalToWorldInverseTransposed ( FVectorVMContext& Context )
	void	SampleSplineDirectionByUnitDistance ( FVectorVMContext& Context )
	void	SampleSplinePositionByUnitDistance ( FVectorVMContext& Context )
	void	SampleSplineRightVectorByUnitDistance ( FVectorVMContext& Context )
	void	SampleSplineTangentByUnitDistance ( FVectorVMContext& Context )
	void	SampleSplineUpVectorByUnitDistance ( FVectorVMContext& Context )

Overridden from UNiagaraDataInterface

	Name	Description
bool	CanExecuteOnTarget ( ENiagaraSimTarget Target )
bool	CopyToInternal ( UNiagaraDataInterface* Destina... )
void	DestroyPerInstanceData ( void* PerInstanceData, FNiagaraSystemInstance* System... )	Destroys the per instance data for this interface.
bool	Equals ( const UNiagaraDataInterface* O... )	Determines if this DataInterface is the same as another.
void	GetFunctions ( TArray< FNiagaraFunctionSignature >... )	Gets all the available functions for this data interface.
void	GetVMExternalFunction ( const FVMExternalFunctionBindingInf..., void* InstanceData, FVMExternalFunction& OutFunc )	Returns the delegate for the passed function signature.
bool	InitPerInstanceData ( void* PerInstanceData, FNiagaraSystemInstance* System... )	Initializes the per instance data for this interface.
int32	PerInstanceDataPassedToRenderThreadSize()	The size of the data this class will provide to ProvidePerInstanceDataForRenderThread.
int32	PerInstanceDataSize()	Returns the size of the per instance data for this interface.
bool	PerInstanceTick ( void* PerInstanceData, FNiagaraSystemInstance* System..., float DeltaSeconds )	Ticks the per instance data for this interface, if it has any.

Overridden from UObject

		Name	Description
	void	PostInitProperties()	Called after the C++ constructor and after the properties have been initialized, including those loaded from config.

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