Overlay curves over heatmap

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or ohev shalom
or ohev shalom el 25 de Dic. de 2019
Comentada: MJ el 5 de Oct. de 2022
Hello everyone,
I was wondering if it is possible to plot curves over heatmap. It goes something like this:
X = 20:20:1000;
Y = 100:-2:1;
Z = randi(100,50,50);
h = heatmap(X,Y,Z);
hold on
for ii=1:5
curve = ii+1000./X;
plot(X, curve)
end
hold off
I want the curves to be above the heatmap. For example, in the figures below,Capture.PNG
the right figure should be on top of the left figure.
Any ideas?
Thanks in advance!

Respuesta aceptada

Akira Agata
Akira Agata el 26 de Dic. de 2019
How about the following way?
  1. Plot the heatmap
  2. Add axes over the heatmap
  3. Plot lines on the axes
  4. Set the background color of the axes to 'none'
  5. Adjust the axes size to fit to the heatmap
The following is an example.
% Sample data
cdata = [45 60 32; 43 54 76; 32 94 68; 23 95 58];
figure
heatmap(cdata)
colorbar
ax = axes;
plot(ax,magic(4),'LineWidth',2)
ax.Color = 'none';
% Maybe it needs some adjustment, like:
ax.Position(3) = 0.72;
ax.XTick = [];
ax.YTick = [];
untitled.png
  3 comentarios
Chamila Siyamalapitiya
Chamila Siyamalapitiya el 24 de Ag. de 2021
How to apply this concept for subplot? when use ax = axes, it use the whole space, not the subplot space
MJ
MJ el 5 de Oct. de 2022
Same question about subplot...

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