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To reflect a contour plot

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aneps
aneps 2016-4-6
回答： Roger Stafford 2016-4-6
I have my potential surface plot. I want to reflect it and plot the effective potential (contour plot). My code to plot the potential surface is simple:
load Voltage.dat
V=Voltage;
clear Voltage;
V=double(V); % V is now 245x52 double
figure, contour(V,500);
My device is having mirror symmetry. This is only the potential plot for the one half. How can I take the reflection of this contour plot and make a new plot including the mirror reflection?

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Roger Stafford
Roger Stafford 2016-4-6
If your symmetry is in the left-right direction, then do:
contour(V(:,end:-1:1),500);
However, that leaves the two images overlapping. To avoid this you will need to use the
contour(X,Y,Z)
form appropriately. That is, reverse the Z second index as above, and shift X to one side in the appropriate manner.

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