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Determining area considering nodes arranged in space in an almost circular shape

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Hi. I have the attached nodes arranged in space. I would like to calculate the area having the nodes as boundaries.
I'm trying this way but it doesn't seem to work (the blue line does not follow the red nodes).
figure
x = plane_new(:,1);
y = plane_new(:,2);
k = boundary(x(:),y(:));
plot(x,y,'.-r')
line(x(k),y(k))
A = polyarea(x(k),y(k));

Akzeptierte Antwort

Dyuman Joshi
Dyuman Joshi am 16 Jan. 2024
Directly use polyarea -
load('plane_new.mat')
x = plane_new(:,1);
y = plane_new(:,2);
plot(x,y,'.-r')
A = polyarea(x,y)
A = 42.3674

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R2021b

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