preview/vendor/leaflet.draw-src.js
function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
		return (p2.y - p.y) * (p1.x - p.x) > (p1.y - p.y) * (p2.x - p.x);
	}
function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
		return (p2.y - p.y) * (p1.x - p.x) > (p1.y - p.y) * (p2.x - p.x);
	}
function ( /*Point*/ p , /*Point*/ p1 , /*Point*/ p2 ) { return ( p2 . y - p . y ) * ( p1 . x - p . x ) > ( p1 . y - p . y ) * ( p2 . x - p . x ) ; }
check to see if points are in counterclockwise order
check to see if points are in counterclockwise order