UxtTwoHandManipulationRotateLogic

Implements common logic for rotating holograms using a handlebar metaphor.

Each frame, object_rotation_delta = rotation_delta(current_hands_vector, previous_hands_vector) where hands_vector is the vector between two hand/controller positions.

Usage: When a manipulation starts, call Setup. Call Update with currently available grab pointers to get a new rotation for the object.

class UxtTwoHandManipulationRotateLogic;

Header

#include <Interactions/Manipulation/UxtTwoHandRotateLogic.h>

Public Types

	Name
typedef const TArray< FUxtGrabPointerData > &	GrabPointers

Public Functions

	Name
void	Setup(GrabPointers PointerData, const FQuat & HostRotation)
FQuat	Update(GrabPointers PointerData) const

Public Types Documentation

typedef GrabPointers

typedef const TArray<FUxtGrabPointerData>& UxtTwoHandManipulationRotateLogic::GrabPointers;

Public Functions Documentation

function Setup

void Setup(
    GrabPointers PointerData,
    const FQuat & HostRotation
)

Sets up rotation logic by storing initial handle bar and rotation value

function Update

FQuat Update(
    GrabPointers PointerData
) const

Updates the rotation based on the current grab pointer locations

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Updated on 19 August 2021 at 17:42:52 Coordinated Universal Time