new CircleGesture()
Constructs a new CircleGesture object.
An uninitialized CircleGesture object is considered invalid. Get valid instances of the CircleGesture class from a Frame object.
- Source:
- gesture.js, line 149
Members
-
center :Vector
-
The center point of the circle within the Leap frame of reference.
Type:
- Vector
- Source:
- gesture.js, line 179
-
normal :Vector
-
The normal vector for the circle being traced.
If you draw the circle clockwise, the normal vector points in the same general direction as the pointable object drawing the circle. If you draw the circle counterclockwise, the normal points back toward the pointable. If the angle between the normal and the pointable object drawing the circle is less than 90 degrees, then the circle is clockwise.
var clockwiseness; if (circle.pointable.direction.angleTo(circle.normal) <= PI/4) { clockwiseness = "clockwise"; } else { clockwiseness = "counterclockwise"; }
Type:
- Vector
- Source:
- gesture.js, line 186
-
progress :Number
-
The number of times the finger tip has traversed the circle.
Progress is reported as a positive number of the number. For example, a progress value of .5 indicates that the finger has gone halfway around, while a value of 3 indicates that the finger has gone around the the circle three times.
Progress starts where the circle gesture began. Since the circle must be partially formed before the Leap can recognize it, progress will be greater than zero when a circle gesture first appears in the frame.
Type:
- Number
- Source:
- gesture.js, line 209
-
radius :Number
-
The radius of the circle in mm.
Type:
- Number
- Source:
- gesture.js, line 226