Combination of distances between multiple points
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I have a number of circles, where I can define the number at the beginning, i = number of circle. I have to calculate every minimum distance between every circle. That means the equation can be written as:
dist = (x1-x2)^2 + (y1-y2)^2 - (r1+r2)
Let's say the number of circle is chosen 6, so the number of combination of distances come as 15.
To define the variables first, I have declared the matrices of radius, x coordiantes and y coordinates. Now, from this point onwards, I need help to write the basic and generalized code to find the combination.
Thanks!
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Accepted Answer
Rik
on 29 Jul 2021
You already have the generalized code. You just need to combine it with nchoosek:
x=1+10*rand(1,6);
y=1+10*rand(1,6);
r=rand(1,6);
combs=nchoosek(1:6,2);
c1=combs(:,1);c2=combs(:,2);
d=(x(c1)-x(c2)).^2 + (y(c1)-y(c2)).^2 - (r(c1)+r(c2));
combs(:,3)=d
%(circle 1, circle 2, distance)
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