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grtlakes
2010 Mar 15
1
map2poly - map lat/long cannot be unconstrained?
...t accordingly, but the map remains undistorted. No matter how much
I try to stretch the y axis, the y:x ratio scale remains 1:1. How do I force
the map to fit the ranges that I set like I can for the data plot?
*# make the map object "lakes"
tmp <- read.shape('D:/R/great lakes map/grtlakes/grtlakes')
lakes <- Map2poly(tmp)
# read sample location data to be plotted on map
locs <- read.table("locs.csv", header=TRUE, sep=",", na.strings="NA",
dec=".", strip.white=TRUE)
# plot map, then sample locations
plot(lakes,xlim=range(-76,-93),...