// Update on every frame
void Update()
{
if (_leap.IsConnected)
{
var frame = _leap.Frame();
if (frame.Hands.Count > 0)
{
// The Leap Motion can see a hand, so get its palm position
Leap.Vector leapPalmPosition = frame.Hands[0].PalmPosition;
// Convert to our vector class, and then convert to our coordinate space
Ultrahaptics.Vector3 uhPalmPosition = _alignment.fromTrackingPositionToDevicePosition(LeapToUHVector(leapPalmPosition));
// Create a control point object using this position, with full intensity, at 200Hz
AmplitudeModulationControlPoint point = new AmplitudeModulationControlPoint(uhPalmPosition, 1.0f, 200.0f);
// Output this point
_emitter.update(new List <AmplitudeModulationControlPoint> {
point
});
}
else
{
Debug.LogWarning("No hands detected");
_emitter.stop();
}
}
else
{
Debug.LogWarning("No Leap connected");
_emitter.stop();
}
}
/// <summary>
/// Converts the given direction vector from world space to device space.
/// </summary>
/// <param name="vector">The direction vector in world space.</param>
/// <returns>The equivalent direction vector in device space.</returns>
public Ultrahaptics.Vector3 WorldToDeviceDirection(UnityEngine.Vector3 vector)
{
// Transform the world direction to the local space of the array
var localDirection = _arrayOrigin.InverseTransformDirection(vector);
// Construct an Ultrahaptics Vector3
// Note that the y and z coordinates are swapped as Ultrahaptics uses a coordinate system where the positive Y-axis is up
var ultrahapticsDirection = new Ultrahaptics.Vector3(localDirection.x, localDirection.z, localDirection.y);
return(ultrahapticsDirection);
}
// Update on every frame
void Update()
{
// Set the position to be 20cm above the centre of the array
Ultrahaptics.Vector3 position = new Ultrahaptics.Vector3(0.0f, 0.0f, 0.2f);
// Create a control point object using this position, with full intensity, at 200Hz
AmplitudeModulationControlPoint point = new AmplitudeModulationControlPoint(position, 1.0f, 200.0f);
// Output this point; technically we don't need to do this every update since nothing is changing.
_emitter.update(new List <AmplitudeModulationControlPoint> {
point
});
}
// This callback is called every time the device is ready to accept new control point information
private static void Callback(TimePointStreamingEmitter emitter, OutputInterval interval, TimePoint deadline, object userObj)
{
// For each time point in this interval...
foreach (TimePointOnOutputInterval tPoint in interval)
{
if (_firstTime)
{
_startTime = tPoint.seconds();
_firstTime = false;
}
double t = tPoint.seconds() - _startTime;
for (int i = 0; i < Circles.Length; i++)
{
Vector3 pos = Circles[i].EvaluateAt(t);
tPoint.persistentControlPoint(i).setPosition(pos);
tPoint.persistentControlPoint(i).setIntensity(Circles[i].Intensity);
}
}
}
// Update on every frame
public void Update()
{
// The Leap Motion can see a hand, so get its palm position
// Convert to our vector class, and then convert to our coordinate space
//Vive Tracker Position
Ultrahaptics.Vector3 uhPalmPosition = new Ultrahaptics.Vector3(ViveHand.transform.position.x, ViveHand.transform.position.y, ViveHand.transform.position.z);
// Leap Motion hand position
// From here, we can establish how many timepoints there are in a single "iteration" of the cosine wave
for (int i = 0; i < _timepoint_count; i++)
{
float intensity = VM.intensity * (1.0f - (float)Math.Cos(2.0f * Math.PI * i / _timepoint_count));
// Set a constant position of 20cm above the array
_positions[i] = new Ultrahaptics.Vector3(0.0f, 0.0f, 0.2f);
_intensities[i] = (intensity);
}
_emitter.setEmissionCallback(callback, null);
}
