tasks/init/bootplate/root/enyo/source/touch/gesture.js
function(inPositions) {
			// the least recent touch and the most recent touch determine the bounding box of the gesture event
			var p = inPositions;
			// center the first touch as 0,0
			return {
				magnitude: p.h,
				xcenter: Math.abs(Math.round(p.fx + (p.x / 2))),
				ycenter: Math.abs(Math.round(p.fy + (p.y / 2)))
			};
		}
function(inPositions) {
			// the least recent touch and the most recent touch determine the bounding box of the gesture event
			var p = inPositions;
			// center the first touch as 0,0
			return {
				magnitude: p.h,
				xcenter: Math.abs(Math.round(p.fx + (p.x / 2))),
				ycenter: Math.abs(Math.round(p.fy + (p.y / 2)))
			};
		}
function ( inPositions ) { // the least recent touch and the most recent touch determine the bounding box of the gesture event var p = inPositions ; // center the first touch as 0,0 return { magnitude : p . h , xcenter : Math . abs ( Math . round ( p . fx + ( p . x / 2 ) ) ) , ycenter : Math . abs ( Math . round ( p . fy + ( p . y / 2 ) ) ) } ; }
find bounding box
find bounding box