nl_tokens: Get the center point coordinate of a group of pointers .
pl_tokens: function getPointersCenter ( pointers ) { var pageX = 0 ; var pageY = 0 ; var count = 0 ; forEach ( pointers , function ( _ref3 ) { var startX = _ref3 . startX , startY = _ref3 . startY ; pageX += startX ; pageY += startY ; count += 1 ; } ) ; pageX /= <mask> ; pageY /= count ; return { pageX : pageX , pageY : pageY } ; }