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> Unreal Engine API Reference > Runtime > InteractiveToolsFramework > BaseGizmos > UGizmoUniformScaleParameterSource

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UGizmoUniformScaleParameterSource

[UGizmoUniformScaleParameterSource](API\Runtime\InteractiveToolsFramework\BaseGizmos\UGizmoUniformSca-) is an [IGizmoVec2ParameterSource](API\Runtime\InteractiveToolsFramework\BaseGizmos\IGizmoVec2ParameterSource) implementation that interprets the Vec2 parameter as the position in a 2D plane, and maps this parameter to a change in a uniform scale value.

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Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UGizmoBaseVec2ParameterSource

UGizmoUniformScaleParameterSource

References

Module	InteractiveToolsFramework
Header	/Engine/Source/Runtime/Experimental/InteractiveToolsFramework/Public/BaseGizmos/ParameterToTransformAdapters.h
Include	#include "BaseGizmos/ParameterToTransformAdapters.h"

Syntax

class UGizmoUniformScaleParameterSource : public UGizmoBaseVec2ParameterSource

Remarks

UGizmoUniformScaleParameterSource is an IGizmoVec2ParameterSource implementation that interprets the Vec2 parameter as the position in a 2D plane, and maps this parameter to a change in a uniform scale value. This scale is applied to an IGizmoTransformSource.

The X/Y plane parameter deltas are converted to a uniform scale delta simply by adding them. This assumpes that the 3D plane is oriented such that "positive" along the X and Y tangent axes corresponds to something semantically meaningful. It's up to the client to do this.

This ParameterSource is intended to be used to create 3D Uniform Scale Gizmos.

Variables

	Name	Description
TScriptInterfac...	AxisSource	AxisSource provides the 3D plane (origin/normal/u/v) that is used to interpret the 2D parameters
FVector	CurScaleAxisX	In-plane axis X for current parameter edit (only valid between BeginModify/EndModify)
FVector	CurScaleAxisY	In-plane axis Y for current parameter edit (only valid between BeginModify/EndModify)
FVector	CurScaleNormal	Plane normal for current parameter edit (only valid between BeginModify/EndModify)
FVector	CurScaleOrigin	Plane origin for current parameter edit (only valid between BeginModify/EndModify)
FTransform	InitialTransform	Saved copy of Initial Transform for current parameter edit (only valid between BeginModify/EndModify)
FGizmoVec2Param...	LastChange	Active parameter change (only valid between BeginModify/EndModify)
FVector2D	Parameter	Parameter is the two line-equation parameters that this Vec2ParameterSource provides
float	ScaleMultiplier	Coordinate delta is multiplied by this amount
TScriptInterfac...	TransformSource	This TransformSource is updated by applying the constructed 3D translation

Functions

		Name	Description
	UGizmoUnifor...	Construct ( IGizmoAxisSource* AxisSourceIn, IGizmoTransformSource* Transfo..., UObject* Outer )	Create a standard instance of this ParameterSource, with the given AxisSource and TransformSource

Overridden from IGizmoVec2ParameterSource

	Name	Description
void	BeginModify()	Notify ParameterSource that a parameter modification is about to begin
void	EndModify()	Notify ParameterSource that a parameter modification is complete
FVector2D	GetParameter()	Optional position constraint function.
void	SetParameter ( const FVector2D& NewValue )	Set value of parameter

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