CircleGesture¶

Methods:

The CircleGesture classes represents a circular finger movement.

Public Functions

Vector center()

The center point of the circle within the Leap Motion frame of reference.

Vector centerPoint = circle.center();

Return

Vector The center of the circle in mm from the Leap Motion origin.

CircleGesture()

Constructs a new CircleGesture object.

An uninitialized CircleGesture object is considered invalid. Get valid instances of the CircleGesture class from a Frame object.

CircleGesture(Gesture rhs)

Constructs a CircleGesture object from an instance of the Gesture class.

if(gesture.type() == Gesture.Type.TYPE_CIRCLE) {
    CircleGesture circleGesture = new CircleGesture(gesture);
}

Parameters

• rhs -

  The Gesture instance to specialize. This Gesture instance must be a CircleGesture object.

Vector normal()

Returns the normal vector for the circle being traced.

String clockwiseness;
if (circle.pointable().direction().angleTo(circle.normal()) <= Math.PI/2) {
        clockwiseness = "clockwise";
}
else
{
    clockwiseness = "counterclockwise";
}

Return

Vector the normal vector for the circle being traced

Pointable pointable()

The finger performing the circle gesture.

Pointable circlePointable = circle.pointable();

Return

Pointable A Pointable object representing the circling finger.

float progress()

The number of times the finger tip has traversed the circle.

float turns = circle.progress();

Return

float A positive number indicating the gesture progress.

float radius()

The radius of the circle.

float diameter = 2 * circle.radius();

Return

The circle radius in mm.