antipolygon {RFOC} | R Documentation |
Fill a plot with a color outside the confines of a polygon.
antipolygon(x, y, col = 0, corner = 1)
x |
x coordinates of polygon |
y |
y coordinates of polygon |
col |
Fill color |
corner |
Corner on the plot to connect to at the end: 1 = LowerLeft(default) ; 2:UpperLeft 3 = UpperRight; 4=LowerRight |
antipolygon uses par("usr") to determine the external bounds of plotting region.
Used for graphical side effect
If the figure is resized after plotting, filling may not appear correct.
Jonathan M. Lees <jonathan.lees@unc.edu>
polygon, par
######### some data points to plot: x = runif(100) y = runif(100) plot(x,y) ########### create polygon: pp =list(x=c(0.231,0.316,0.169,0.343,0.311,0.484,0.757, 0.555,0.800,0.563,0.427,0.412,0.203), y=c(0.774,0.622,0.401,0.386,0.138,0.312,0.200,0.459, 0.658,0.624,0.954,0.686,0.813)) polygon(pp) antipolygon(x=pp$x, y=pp$y,col='blue')