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# Could someone write some code to extract details within a for loop?

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Steve on 20 Nov 2019
Closed: MATLAB Answer Bot on 20 Aug 2021
In my previous post, I was given some code that works great, but I need to extract some details that are mentioned within one of the for-loops, namely:
1. arc lengths
3. starting/ending points of arcs (triplet center points)
4. thetas (w/ corresponding theta1, theta2 angles) for each arc.
Can anyone help me to extract and store these details (along with index/node numbers) within a single variable/file?
Catalytic on 20 Nov 2019
Mentioned in which for-loop?
Steve on 20 Nov 2019
Thanks for reaching out Catalytic. The for-loop is under: function plotcirc(obj)

Catalytic on 21 Nov 2019
Edited: Catalytic on 21 Nov 2019
Something like this....
function stuff=getStuff(tgraph,arcNumber)
AP=tgraph.ArcPoints;
i=arcNumber;
C1=AP(:,1,i); C2=AP(:,4,i);
V1=AP(:,2,i); V2=AP(:,3,i);
L=norm(C2-C1);
U=(C2-C1)/L;
dV1=(V1-C1)/norm(V1-C1);
dV2=(V2-C2)/norm(V2-C2);
stuff.theta1=acosd(dot( dV1, U) );
stuff.theta2=acosd(dot( dV2, -U) );
stuff.theta=(theta1+theta2)/2;
stuff.C1=C1;
stuff.C2=C2;
stuff.nodeNumber=findedge(tgraph.Cgraph,i);
end
Steve on 22 Nov 2019
Thank you Steven. I didn't even know about the MATLAB Onramp tutorial, but I will definitely check it out now that I know about it. Thanks again!
Steve on 23 Nov 2019
By the way Catalytic, thank you for your input. However, I could not get your code/function (shown above) to run, as it was generating errors.

R2019a

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