![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/173997/image.png)
How to place Contourf at a new height?
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I have the following plot and the Contourf.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/163010/image.jpeg)
By default, Contourf will always be generated at height Z = 0 i.e. the horizontal plane. I would like to shift Contourf to height Z = -2, this is so the contour will be placed under the graph of my function. How do I achieve this?
Code:
x = linspace(0,1,1000);
y = linspace(0,1,1000);
[X,Y] = meshgrid(x,y);
Z = -X.^2 - Y.^2;
mesh(X,Y,Z)
box on
hold on
contourf(X,Y,Z)
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Answers (1)
Star Strider
on 16 Apr 2017
This seems to work:
x = linspace(0,1,1000);
y = linspace(0,1,1000);
[X,Y] = meshgrid(x,y);
Z = -X.^2 - Y.^2;
mesh(X,Y,Z+2)
box on
hold on
contourf(X,Y,Z+2)
zt = get(gca, 'ZTick');
set(gca, 'ZTick',zt, 'ZTickLabel',zt-2)
view([15 35])
Change the view arguments to the orientation you want.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/173997/image.png)
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