matlab 等高线matlab里如何画等高线图形

matlab里如何画等高线图形

d = [-71 56 0 -70 5 1 74 5 1 75 57 9 0.5 18 15 0.5 53 9 -40 11 -16 -40 45 -9 -70 32 -4 35 11 10 39 45 5 -29 18 -5 -52 37 -3 52 25 6 -18 53 -5 15 15 10 -57 9 3 65 41 2 -56 52 3 15 5 9 19 33 10 -19 6 -6 -45 23 -12 -63 17 -2 57 17 12]; [X Y] = meshgrid(-80:80, -80:80); Z = griddata(d(:,1), d(:,2), d(:,3), X, Y); contour(X, Y, Z)