Using contourmatrix to create contour

Hi, I've made some modifications to a contour matrix outputted by contourc and want to create a contour from this matrix. Does anyone know how I can do this?

Answer 1

[bym]

umm...I'm guessing

contour(modifiedContourMatrix)

[Jose Ercolino]

Doesn't work.

Answer 2

[Fangjun Jiang]

From help contour

[C,H] = CONTOUR(...) returns contour matrix C as described in CONTOURC and a handle H to a contourgroup object. This handle can be used as input to CLABEL.

From help contourc

C = CONTOURC(Z) computes the contour matrix for a contour plot of matrix Z treating the values in Z as heights above a plane. C = CONTOURC(X,Y,Z), where X and Y are vectors, specifies the X- and Y-axes limits for Z.

    Example:
       [c,h] = contour(peaks); clabel(c,h), colorbar

So if you modifed the contour matrix c, then you might be able to use it as clabel(c_modified,h), assuming the contour matrix is not messed up.

[Jose Ercolino]

Doesn't work. clabel only puts label on the contour plot.