code: function(box_or_min, max){
  			var min;
  			if( is.AABB( box_or_min ) ){
  				max = box_or_min.getMax();
  				min = box_or_min.getMin();
  			} else {
  				min = box_or_min;
  			}
  			this.x = mathUtils.clip(this.x, min.x, max.x);
  			this.y = mathUtils.clip(this.y, min.y, max.y);
  			this.z = mathUtils.clip(this.z, min.z, max.z);
  			return this;
  		}
docs: Forcefully fits the vector in the given AABB specified by the 2 given
  points.
  
  @param box_or_min
  either the AABB box by itself, or your min Vec3D with accompanying max
  @param max
  @return itself