How to plot peaks on desired location in a 3D plot?

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Sadiq Akbar
Sadiq Akbar 2022년 2월 21일
댓글: Star Strider 2022년 3월 2일
There are two vectors that will make an xy-plane. I want to draw a peak pointing in z-direction on a desired location on the xy-plane. In code form it is:
x=linspace(0,180,100);% 1st vector
y=x;% 2nd vector
Now I want to draw a peak of strenght 5 on the intersection of the point (x1,y1)=(30,50).Likewise, I want to draw another peak on the intersection of the point (x2,y2)=(40,120). Further, I want to draw another peak on the intersection of the point (x3,y3)=(60,140). But this whole plot should be a 3D plot as shown in the attached image.
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Sadiq Akbar
Sadiq Akbar 2022년 2월 21일
Thank you for your response. There is no eq. but I want to draw peaks of my desired values. Say for example, one peak should be of height 5, another should be of height 5.5 and another should be of height 7.

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Star Strider
Star Strider 2022년 2월 21일
[X,Y] = ndgrid(0:300);
C = 50:100:300;
Zf = @(C) exp(-(((X-C).^2)*0.5+((Y-C).^2)));
Z = Zf(C(1)) + Zf(C(2)) + Zf(C(3));
[pks,locs] = findpeaks(Z(:), 'MinPeakHeight',0.5)
pks = 3×1
1 1 1
locs = 3×1
15101 45301 75501
figure
surf(X, Y, Z, 'EdgeColor','none')
hold on
plot3(X(locs), Y(locs), Z(locs), '^r')
hold off
Experiment with your data with this approach.
.
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Star Strider
Star Strider 2022년 3월 2일
As always, my pleasure!

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