contourf(Z)
contourf(X, Y, Z)
contourf(..., levels)
contourf(..., LineSpec)
contourf(ax, ...)
M = contourf(...)
[M, h] = contourf(...)
| Parameter | Description |
|---|---|
| X | x-coordinates: vector or matrix. |
| Y | y-coordinates: vector or matrix. |
| Z | z-coordinates: numeric matrix. |
| levels | Contour levels: scalar count, vector of levels, or [k k] for one level. |
| LineSpec | Line style and color. |
| ax | Parent axes. |
| Parameter | Description |
|---|---|
| M | Contour matrix. |
| h | Contour graphics object. |
contourf draws filled contour bands for the values in Z. The returned contour matrix matches the object's ContourMatrix property.
The contour object supports line, fill, transparency, label, and contour-level properties including FaceColor, FaceAlpha, ShowText, LabelColor, LabelSpacing, LabelFormat, TextList, TextStep, and ZLocation.
figure();
[X,Y,Z] = peaks(40);
[M,h] = contourf(X,Y,Z,10);
h.FaceAlpha = 0.75;x = linspace(-2*pi, 2*pi, 100);
y = linspace(-2*pi, 2*pi, 100);
[X, Y] = meshgrid(x, y);
Z = sin(X) .* cos(Y);
figure;
contourf(X, Y, Z, 20);
colorbar;
title('Demo contourf');
xlabel('X');
ylabel('Y');
colormap parula;
| Version | Description |
|---|---|
| 1.17.0 | initial version |