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Heya, I'm the developer behind Woodcut Maps! The site is built on python/django and hosted on AWS. Most of the interesting work happens in python with PIL, numpy and scipy. We download maps tiles (Google for now, working on an OSM render path), and split them into channels for landscape, water, roads and parks. Then we apply several steps of scipy's image morphology filters to get the masks ready for laser cutting and to ease assembly by simplifying the design. Removing small pieces, filling small gaps (which gives the maps the distinctive look of dense roads being filled in, creating chunky blocks), and simplifying boundaries. All the rendering happens on picloud.com, which has been a really robust part of our infrastructure. It helps us scale up and down based on demand without having to manage an autoscaling AWS backend processor setup ourselves, or overpay for AWS instances. I'm probably going to talk more in detail about it at WhereCamp this weekend if anyone wants to talk in person. |