public String toStringPath(){
	    
	    String start = "[";
	    String end = "]";
	    
	    StringBuilder path = new StringBuilder();
	    path.append(start);
	    
	    for(Point p: this.coordinates){
	        if(path.length() != start.length()){
	            path.append(",");
	        }
	        path.append(p.toString());
	    }
	    
	    path.append(end);
        return path.toString();
	    
	}