The above flow map shows all flights with origin in Vancouver International Airport. The airlines are classified in colors in order to mark the flight companies. This map is in a statistic purpose of acknowledging the flight destination tendencies of different companies.
"I'll describe why it's interesting" appears in the sample code which makes me feel so awkward. I found it....say, normal interesting. I actually think the coding parts are better.
In this flowmap, I used the same code but just a different place. Why did I picked China? Being exotic should be a fair enough reason. And I`m from Shanghai.