%--------------------------
 % @Author: Jingqiao Hu
 % @Date: 2021-12-29 17:39:18
 % @LastEditTime: 2022-01-06 11:48:44

 % get all the edges and cutted edges by the bounding box
%--------------------------
function saved_segs = voronoi_edges(seeds, boundarys, maxx, minx, maxy, miny)

    [vx, vy] = voronoi(seeds(:,1), seeds(:,2));
    vx = vx';
    vy = vy';
    segs = [vx(:,1), vy(:,1), vx(:,2), vy(:,2)];

    edges = [segs; boundarys];
    cutted = splitEdges(edges);
%     cutted = uniquetol(cutted, 'ByRows', true );

    [r1, ~] = find( (cutted(:, 1) > maxx) | (cutted(:, 1) < minx) | ...
                    (cutted(:, 2) > maxy) | (cutted(:, 2) < miny) | ...
                    (cutted(:, 3) > maxx) | (cutted(:, 3) < minx) | ...
                    (cutted(:, 4) > maxy) | (cutted(:, 4) < miny) );
                    
    [r2, ~] = find( abs(cutted(:, 1) - (cutted(:, 3))) < 1e-5 & ...
                    abs(cutted(:, 2) - (cutted(:, 4))) < 1e-5); 
                    
    saved_idx = setdiff(1 : size(cutted, 1), [r1; r2]);
    saved_segs = cutted(saved_idx, :);

%     figure; drawEdge( saved_segs, 'linewidth', 3 ); axis equal;
end