figure
pcolor(rand(30))
xtl = xticklabels;
xticks(linspace(1, 30, numel(xtl)+1))
xticklabels(compose('%3d',linspace(-15, 15, numel(xtl)+1)))
yticks(linspace(1, 30, numel(xtl)+1))
yticklabels(compose('%3d',linspace(-15, 15, numel(xtl)+1)))
% set(gca, 'XTick',linspace(1, 30, numel(xtl)+1), 'XTickLabel',compose('%3d',linspace(-15, 15, numel(xtl)+1)))
% set(gca, 'YTick',linspace(1, 30, numel(xtl)+1), 'YTickLabel',compose('%3d',linspace(-15, 15, numel(xtl)+1)))
Both of these approaches work, and produce the same result.
EDIT — (18 Oct 2022 at 13:26)
Initially forgot about the y-axis. Same approach, different functions.
EDIT — (18 Oct 2022 at 15:12)
Actually, a better option would be to use surf and then the view function to look at the surface from the top —
x = 0:30;
y = 0:30;
[X,Y] = ndgrid(x,y);
Z = exp(-((X-15).^2+(Y-15).^2)*0.025);
figure
surf(X,Y,Z)
colormap(turbo)
xt = xticks;
xticklabels(xt-15)
yt = yticks;
yticklabels(yt-15)
figure
surf(X,Y,Z)
colormap(turbo)
xt = xticks;
xticklabels(xt-15)
yt = yticks;
yticklabels(yt-15)
view(0,90)
.
