摘要：
流向地图火了，因为Facebook的那张著名的友邻图，抑或因为《数据可视化之美》中介绍飞行模式的航线图，总之，流向地图以它特殊的可视化形式，直观地展示事物之间的联系，尤其在展示网络流向、贸易流向、迁徙路线等方面具有天然的优势。Flow maps - show the movement of some phenomenon, normally goods or people, from one place to another. Lines are used to symbolize the flow, typically varied in width to represent diffe.. 阅读全文
