Transition values of contour Plot

2020 11 21
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更新时间：2020 11 21
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Hello everyone!
I have a contour plot with two colours. The command I used is contourf(X,Y,Z) where x and y are condinates coordinates for Z. I want to Highlight the transition values, and provide a numerical estimation of their position. The transition happens when z varis from 0.5 <z <1.5.
I have used this but i get values of r2,r3 which are larger than the set of axis.
[r2, r3]= find((T(:,:)>0.9998 & T(:,:)<1.0002))
Can someone give a hint on how solve this problem?
Thank you

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Star Strider
Star Strider 2020-11-21

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Try something like this:
[X,Y,Z] = peaks(42);
figure
contourf(X, Y, Z);
hold on
[c,h] = contourf(X, Y, Z, [0.5:0.01:1.5]);
h.LineStyle = ':';
h.Color = 'r';
hold off
Experiment to get the result you want.

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