differenceFrom static method
Returns the difference between two coordinates as a new goog.math.Coordinate. @param {!goog.math.Coordinate} a A Coordinate. @param {!goog.math.Coordinate} b A Coordinate. @return {!goog.math.Coordinate} A Coordinate representing the difference between {@code a} and {@code b}.
Implementation
static Coordinate differenceFrom(Coordinate a, Coordinate b)
{
return new Coordinate(a.x - b.x, a.y - b.y);
}