This is an application made by LUD STUDIOS LTD for London Utopian Design Limited to display its architecture design portfolio. You can find the marker images from the paper booklets or our website: www.ludstudios.co.uk
请在如下链接中寻找marker images： https://www.dropbox.com/sh/diavxza1uqm2yc1/AAD9sl9uRr6kLKqrv6Dzz4Xpa