whole_func_string: function textualDirection(direction) {
  		var angle = parseFloat(direction);
  		
  		if(!_.isNaN(angle)) {
  			switch(angle % 360) {
  				case 0:   return 'left';
  				case 90:  return 'bottom';
  				case 180: return 'right';
  				case 240: return 'top';
  			}
  		}
  		
  		return direction;
  	}
func_code_string: function textualDirection(direction) {
  		var angle = parseFloat(direction);
  		
  		if(!_.isNaN(angle)) {
  			switch(angle % 360) {
  				case 0:   return 'left';
  				case 90:  return 'bottom';
  				case 180: return 'right';
  				case 240: return 'top';
  			}
  		}
  		
  		return direction;
  	}
func_documentation_string: Returns textual version of direction expressed in degrees
  @param {String} direction
  @returns {String}