state.vbm.center
contains coordinates of the centers of the 50 states (in alphabetical order). Copyright 1982 Mark Monmonier; used with permission.
maps
library. To make them available in your Spotfire S+ session, use the command
library(maps)
.
map("state.vbm") state.vbm.center
The Visibility Base Map is a map of the United States in which areas are adjusted to provide a readily readable platform for smaller states, such as Delaware and Rhode Island. Sizes of larger states are reduced to compensate for the increased area of the smaller states. The map includes all 50 states, with Alaska and Hawaii positioned to the West of Texas.
The
state.vbm
database is currently available only in Unix versions of the
maps
library. The
state.vmb.center
object is available on both Unix and Windows.
Monmonier, M. and Schnell, G. (1983). The Study of Population: Elements, Patterns, Processes. Columbus, OH: Charles E. Merrill.
Monmonier, M. (1993). Mapping It Out: Expository Cartography for the Humanities and Social Sciences. Chicago: University of Chicago Press.
# load the maps library. library(maps) map("state.vbm", fill=T, col=colors) state.vbm.center