Geom.contour

Draw contours of a 2D function or a matrix.

Aesthetics

Arguments

Examples

plot(z=(x,y) -> x*exp(-(x-round(Int, x))^2-y^2),
     x=linspace(-8,8,150), y=linspace(-2,2,150), Geom.contour)
x -10 -5 0 5 10 5 0 10 -10 -5 Color -2 -1 0 1 2 y
volcano = float(array(dataset("datasets", "volcano")))
plot(z=volcano, Geom.contour)
0 25 50 75 100 150 200 100 Color 0 20 40 60 80
plot(z=volcano, Geom.contour(levels=[110.0, 150.0, 180.0, 190.0]))
0 25 50 75 100 170 140 150 160 120 180 190 110 130 Color 0 20 40 60 80
plot(z=volcano, x=collect(0.0:10:860.0), y=collect(0.0:10:600.0),
     Geom.contour(levels=2))
x 0 200 400 600 800 140 160 170 120 150 130 Color 0 100 200 300 400 500 600 y