comb {ptinpoly} | R Documentation |
Sample data defining an enclosed comb 2D polygon.
data(comb)
# Load polygon. data(comb) # Plot the polygon. plot(rbind(comb,comb[1,]),type="l") # Generate 3333 random test points. set.seed(1902) n <- 3333 x1 <- rnorm(n) ; x2 <- rnorm(n) X <- cbind(x1,x2) queries <- as.matrix(X) # Check whether test points are contained in the polygon. # Most of these points will lie outside the polygon. containment = pip2d(comb,queries);