Re: sort 2D points in counter- clockwise way

"Bogdan Dzyubak" <illan7@gmail.com> wrote in message <jfs0ui$s62$1@newscl01ah.mathworks.com>...
> Thanks, Z. Simple and elegant.

Hi,

great idea but didn't work for my data. Found a work-around using pdist2

dist = pdist2(data,data);
    N = size(data,1);
    result = NaN(1,N);
    % first point is first row in data matrix
    result(1) = 1;
    for ii=2:N
        dist(:,result(ii-1)) = Inf;
        [~, closest_idx] = min(dist(result(ii-1),:));
        result(ii) = closest_idx;
    end
data=data(result,:);

"data" should be a nx2 vector containing x,y values.