Label Contour Plot Levels
This example shows how to label each contour line with its associated value.
The contour matrix, C
, is an optional output argument returned by contour
, contour3
, and contourf
. The clabel
function uses values from C
to display labels for 2-D contour lines.
Display eight contour levels of the peaks
function and label the contours. clabel
labels only contour lines that are large enough to contain an inline label.
Z = peaks;
figure
[C,h] = contour(Z,8);
clabel(C,h)
title('Contours Labeled Using clabel(C,h)')
To interactively select the contours to label using the mouse, pass the manual
option to clabel
, for example, clabel(C,h,'manual')
. This command displays a crosshair cursor when the mouse is within the figure. Click the mouse to label the contour line closest to the cursor.