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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: Merge line segments
Replies: 4   Last Post: Feb 12, 2013 11:07 AM

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Peter Bone

Posts: 409
Registered: 1/25/05
Re: Merge line segments
Posted: Feb 11, 2013 11:34 AM
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"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <kfb5tu$b93$1@newscl01ah.mathworks.com>...
> % Try this:
>
> function l = merge_lines(l1, l2)
> l = [l1; l2];
> p = (l*l');
> d = diag(p);
> d2 = bsxfun(@plus,d,d')-2*p;
> [~, k] = max(d2(:));
> l = l([mod(k-1,4)+1 ceil(k/4)],:);
> end
>
> % Bruno


Thanks. That's a nice method for minimising code and works fine, but it's around 6 times slower than mine on average.



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