Diff of city-roads

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.
• Go to city-roads.

- https://anvaka.github.io/city-roads/

- 世界中の都市を線描にするツール 〜 ソフトウェア開発者のAndrei Kashchaが公開
--  https://www.axismag.jp/posts/2020/01/163078.html