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2010 Jul 27
0
3d topographic map [SEC=UNCLASSIFIED]
...t;- xf[xn] y <- yf[yn] z <- zf[xn,yn] za <- apply(z,1,rev) zb <- t(za) yb <- -rev(y) xb <- x nx <- length(xb) dx <- (xb[nx]-xb[1])/(nx-1) ny <- length(yb) dy <- (yb[ny]-yb[1])/(ny-1) mf <- 5 xo <- seq(xb[1],xb[nx],by=dx/mf) yo <- seq(yb[1],yb[ny],by=dy/mf) nxo <- length(xo) nyo <- length(yo) zo1 <- matrix(NA,nrow=nxo,ncol=nyo) (4) Fill your matrix with the data io <- 1 for (i in 1:nx) { jo <- 1 for (j in 1:ny) { zo1[io,jo] <- zb[i,j] jo <- jo+mf } io <- io+mf } (5)...