Clearing isosurface (or other plots) from an axes

问题

I use the following command:

isosurface(data,color)

Now if I use the same command with different data again, it gets superimposed on the previous one.

So, I tried doing:

p = patch(isosurface(foo));
isonormals(foo,p)
delete(p);

to delete the previous plot, but this way i can't use the colorbar.

How do I go about this?

回答1:

Have you tried this?

cla(gca)

cla clears an axes and gca is the handle to the current axes you're are plotting on.

回答2:

Assuming you just want another patch plot in the same figure window, just use

hold off

来源：https://stackoverflow.com/questions/17617521/clearing-isosurface-or-other-plots-from-an-axes