M = contourc(Z)
M = contourc(X, Y, Z)
M = contourc(..., levels)
| 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. |
| Parameter | Description |
|---|---|
| M | Two-row contour matrix. |
contourc computes the contour matrix used by contour plotting functions without creating axes, figures, or graphics objects.
Each contour segment starts with a header column. The first row contains the contour level and the second row contains the number of points in that segment. The following columns contain x and y point coordinates.
Z = peaks(20);
M = contourc(Z, 5)| Version | Description |
|---|---|
| 1.17.0 | initial version |