axis with degrees
add an axis with degree labels
degreeAxis(side, at = NULL, labels, MyMap, ...)
side |
integer; see axis |
at |
numeric; if missing, axTicks is called for nice values; see axis |
labels |
character; if omitted labels are constructed with degree symbols, ending in N/S/E/W; in case of negative degrees, sign is reversed and S or W is added; see axis |
MyMap |
optional map object to be passed |
... |
optional arguments to axis |
axis is plotted on current graph
decimal degrees are used if variation is small, instead of minutes and seconds
Markus Loecher
xy = cbind(x = 2 * runif(100) - 1, y = 2 * runif(100) - 1) plot(xy,xlim=c(-1,1),ylim=c(-1,1)) degreeAxis(1) degreeAxis(2, at = c(-1,-0.5,0,0.5,1))
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.