How can I make plot3 show on the top of the images?

The black line seems to on the top of the imagesc.

Howerever, the white line seems to on the bottom of the imagesc.

I want to plot white line on the above the imagesc ~ How can I do it?

That is to say that the white line will show completely in the interval [-1, 1].

my code is:

surf(ps, ts, SE_tp, 'edgecolor', 'flat'); hold on; view(2)
plot3([ps(1),ps(end)],[ts(t_idx1),ts(t_idx1)], [SE_tp(1,t_idx1) SE_tp(end,t_idx1)],'-w','linewidth',2.5); hold on 
plot3([ps(1),ps(end)],[ts(t_idx2),ts(t_idx2)], [SE_tp(1,t_idx2) SE_tp(end,t_idx2)],'-w','linewidth',2.5); hold on

Answer 1

[Peng Li]

Below example works fine

C = [0 2 4 6; 8 10 12 14; 16 18 20 22];
clims = [4 18];
imagesc(C,clims)
hold on;
plot3([1 4], [1 3], [0 0], 'LineWidth', 4, 'Color', 'w');

This is a bit misleading i think as the color is not part of the colormap. It makes the heat image hard to interpret.