US National Boundary Points
stateNationVisBorders - A set of boundary points for the US, its 50 states and DC.
A data frame with 108 elements of the following 2 variables.
the x coordinate for the boundary point
the y coordinate for the boundary point
stateNationVisBorders datasets contains the list of points to be able to plot the borders of the US in the micromap panel. Lines are drawn between each point with the last line drawn from the final point to the first point. The order of the point is important. The outer points of each state should coincide with points used in the national US boundary. The boundaries have been smoothed following Monmonier's visibility map.
Mark Monmonier's visibility map, modified by Daniel B. Carr, George Mason University, Fairfax, VA
Monmonier M, Mapping it out: Expository cartography for the humanities and social sciences. Chicago, University of Chicago Press, 1993, p. 178.
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