Great Circle Routes

Early in our course, we studied the fundamentals of the mapping technique upon which the most useful digital maps were built - the Mercator projector. It is used in navigation charts, because any straight line on a Mercator projection map is a line of constant true bearing that enables a navigator to plot a straight-line course.

Features of the app:

• Allows user to add new cities

• Projects the rhumb lines between cities

A rhumb line is an arc crossing all meridians of longitude at the same angle, that is, a path with constant bearing as measured relative to true north. They appear as straight lines on a x-y plane and are the fastest way to travel between two points.

https://artarriaga.shinyapps.io/ArriagaAirMiles3D

Programing language: R

Framework: R-Shiny

#harvardextensionschool #mercadorprojector #digitalmapping #mathematics