U.S. Population Lines is inspired past times Joy Division's Unknown Pleasure album, designed past times Peter Saville. The album encompass was inspired past times a visualization of the radio waves emitted past times a pulsar, which was published inwards the Cambridge Encyclopaedia of Astronomy. In information scientific discipline a visualization which is inspired past times the graph is oft called a 'joyplot' inwards acknowledgement of the iconic album cover. However or thus people loathe the term in addition to yell to these type of visualizations every bit 'ridgeline plots'.
Joy Plots bring perish an established method of mapping population density. For event at that topographic point is:
- James Chesire's San Francisco Terrain in addition to the Population of Wisconsin.