.Flight Terminal Proximity Map.A calculator of miles in between two airports in the United States helped make with Vue, SVG, D3.js and also GreenSock. A map of United States with dots on where airport terminals lie is used as a user interface to move the markers around to determine the distance between 2 airport terminals and also present the distance in miles.Airport Distance Map.Get the span between two airports "as the crow flies.A marker by @shshaw.