Classes

UPlanePositionGizmo

UPlanePositionGizmo implements a gizmo interaction where 2D parameter value is manipulated by dragging a point on a 3D plane in space. The 3D position is converted to 2D coordinates based on the tangent axes of the plane. As with other base gizmos, this class only implements the interaction. The visual aspect of the gizmo, the plane, and the parameter storage are all provided externally. The plane is provided by an IGizmoAxisSource. The origin and normal define the plane and then the tangent axes of the source define the coordinate space. The interaction target (ie the thing you have to click on to start the dragging interaction) is provided by an IGizmoClickTarget. The new 2D parameter value is sent to an IGizmoVec2ParameterSource Internally a UClickDragInputBehavior is used to handle mouse input, configured in Setup()

Member	Type	Offset
AxisSource AxisSource provides the 3D plane on which the interaction happens	TScriptInterface<IGizmoAxisSource>	0x48
ParameterSource The 3D plane coordinates are converted to 2D coordinates in the plane tangent space, and the change in value is sent to this ParameterSource	TScriptInterface<IGizmoVec2ParameterSource>	0x58
HitTarget The HitTarget provides a hit-test against some 3D element (presumably a visual widget) that controls when interaction can start	TScriptInterface<IGizmoClickTarget>	0x68
StateTarget StateTarget is notified when interaction starts and ends, so that things like undo/redo can be handled externally	TScriptInterface<IGizmoStateTarget>	0x78
bEnableSignedAxis If enabled, then the sign on the parameter delta is always "increasing" when moving away from the origin point, rather than just being a projection onto the axis	bool	0x88
bFlipX If enabled, flip sign of parameter delta on X axis	bool	0x89
bFlipY If enabled, flip sign of parameter delta on Y axis	bool	0x8a
bInInteraction If true, we are in an active click+drag interaction, otherwise we are not	bool	0x8b
InteractionOrigin The values below are used in the context of a single click-drag interaction, ie if bInInteraction = true They otherwise should be considered uninitialized	FVector	0x8c
InteractionNormal	FVector	0x98
InteractionAxisX	FVector	0xa4
InteractionAxisY	FVector	0xb0
InteractionStartPoint	FVector	0xbc
InteractionCurPoint	FVector	0xc8
InteractionStartParameter	FVector2D	0xd4
InteractionCurParameter	FVector2D	0xdc
ParameterSigns	FVector2D	0xe4