search for: y_rdm

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2006 Oct 07
1
random point in a circle centred in a geographical position
...tm)) # Generate a random radius with a maximum distance of 1000 meters from the original location. >radius<-runif(1,0,1000) # Generate a random angle >angle<-runif(1,0,360) #Generate a random x coordinate >x_rdm<-coord$x_utm[1]+radius*cos(angle) #Generate a random y coordinate >y_rdm<-coord$y_utm[1]+radius*sin(angle) >result<-as.data.frame(cbind(x_rdm,y_rdm, x_utm, y_utm)) # We can calculate the distance between the original and the random location > result$dist_m<-sqrt(((coord$x_utm-result$x_rdm)^2+(coord$y_utm-result$y_rdm)^2)) >result