Sender: xxstar xxstar@窭瀹水云间 , message area: ASCIIArt Title: Re: Great Wall Sending station: BBS Westward Journey Station Mon Nov 1 21:45:24 2004, within the station No : Just based on feeling Mentioned in sylow Xie Zhenglei's masterpiece: : Have you considered proportion before drawing this? : That is to say, the top level of the front row is 2 : The top layer of the back card is 1 : The rest should not be exactly according to 1 2 : But it can be calculated approximately.