compact_topology_optimization/3d/mexCVT/mex_generation_local.m

%% Build Cpp MEX File with CGAL library
dbstop if error
opt_load = 0; 

if opt_load ==0
    include1 = ['-I', 'C:\dev\vcpkg\installed\x64-windows\include'];
    include2 = ['-I', 'C:\dev\vcpkg\installed\x64-windows\include\eigen3'];
    include3 = ['-I', 'C:\dev\vcpkg\installed\x64-windows\lib\auxiliary\gmp\include'];
    include4 = ['-I', 'F:\project\7-current_opt\CVT-KWP\include\'];
    include5 = ['-I', 'C:\Program Files\OpenMesh 9.0\include'];
    include6 = ['-I', 'F:\library\libigl\include'];
    include7 = ['-I', 'F:\library\geogram-main\src\lib'];
    include8 = ['-I', 'F:\project\7-current_opt\CVT-KWP\3rd\TetWild\include'];

%     lib2 = ['-L', 'C:\dev\vcpkg\installed\x64-windows\lib\auxiliary\gmp\lib'];
%     lib21 = ['-l', 'libgmp-10.lib'];
%     lib22 = ['-l', 'libmpfr-4.lib'];
    lib2 = ['-L', 'C:\dev\vcpkg\installed\x64-windows\lib'];
    lib21 = ['-l', 'gmp.lib'];
    lib22 = ['-l', 'mpfr.lib'];

    lib1 = ['-L', 'C:\Program Files\OpenMesh 9.0\lib'];
    lib11 = ['-l', 'OpenMeshCore.lib'];
    lib12 = ['-l', 'OpenMeshTools.lib'];
    lib3 = ['-L', 'F:\library\geogram-main\build\lib\Release'];
    lib31 = ['-l', 'geogram.lib'];
    lib32 = ['-l', 'geogram_gfx.lib'];
    lib33 = ['-l', 'geogram_num_3rdparty.lib'];
    lib34 = ['-l', 'exploragram.lib'];
       

    mex('-v', include1, include2, include3, include4, include5, include6, include7, include8, ...
        lib2,lib21,lib2,lib22, lib1,lib11,lib1,lib12,  'mexVoronoi.cpp');
%     mex('-v', include1, include3, lib2,lib21,lib2,lib22, 'mexVD.cpp');
   
%     mex -v CXXFLAGS="$CXXFLAGS -Wall" ...
%         '-IC:\dev\vcpkg\installed\x64-windows\include' ...
%         '-IC:\dev\vcpkg\installed\x64-windows\lib\auxiliary\gmp\include' ...
%         '-LC:\dev\vcpkg\installed\x64-windows\lib\auxiliary\gmp\lib' ...
%         '-llibgmp-10.lib' '-llibmpfr-4.lib' ...
%         COMPFLAGS='$COMPFLAGS /openmp' ...
%         'mexCVT.cpp';
end

%% test info
mexVoronoi(ones(3))

% load seeds
% % figure
% 
% % seeds(50,:) = seeds(50,:) + 3;
% % seeds(1,1) = -130;
% 
% [c_nodes, c_norms] = mexVD_info(seeds, int32(1:size(seeds,1))', 256,128,128);
% 
% for i = 1:size(c_nodes, 1)
%     nodes = c_nodes{i};
%     norms = c_norms{i};
% 
%     nodes1 = nodes;
% %     nodes1 = merge_edges(nodes);
% 
%     figure(1); clf
%     x = nodes1(:,[1,4]);
%     y = nodes1(:,[2,5]);
%     z = nodes1(:,[3,6]);
%     plot3(x',y',z','LineWidth',2); hold on;
% 
%     cx = mean(nodes1(:, [1,4]), 2);
%     cy = mean(nodes1(:, [2,5]), 2);
%     cz = mean(nodes1(:, [3,6]), 2);
% 
%     quiver3(cx,cy,cz, norms(:,1), norms(:,2), norms(:,3)); hold on;
%     quiver3(cx,cy,cz, norms(:,4), norms(:,5), norms(:,6)); hold on;
% end

%% test cvt_nonregular
% load seeds
% figure
% 
% % seeds(50,:) = seeds(50,:) + 3;
% % seeds(1,1) = -130;
% 
% [c_nodes, cenP] = mexVD(seeds, int32(1:size(seeds,1))', 256,128,128);
% 
% for i = 1:size(c_nodes, 1)
%     nodes = c_nodes{i};
% 
%     nodes1 = nodes;
% %     nodes1 = merge_edges(nodes);
% 
% %     figure(1); clf
%     x = nodes1(:,[1,4]);
%     y = nodes1(:,[2,5]);
%     z = nodes1(:,[3,6]);
%     plot3(x',y',z','LineWidth',2); hold on;
%     scatter3(cenP(i,1), cenP(i,2), cenP(i,3),'filled'); hold on;
% end

function new_segs = merge_edges(nodes)
% figure;
    new_segs = [];
    len = size(nodes, 1);
    while len > 0
        s1 = nodes(1, :);
        v1 = s1(4:6) - s1(1:3);
        nodes(1,:) = [];

        s11 = reshape(s1, 3, 2);

        found = 0;
        j = 1;
        len = size(nodes, 1);
        while j <= len

            s2 = nodes(j, :);
            v2 = s2(4:6) - s2(1:3);
            v3 = s1(1:3) - s2(1:3);

            s22 = reshape(s2, 3, 2);

            if norm(cross(v1, v2)) < 1e-5 && norm(cross(v3, v2)) < 1e-5
                for ii = 1:2
                    for jj = 1:2
                        if abs(s11(1, ii) - s22(1,jj)) < 1e-5 && ...
                           abs(s11(2, ii) - s22(2,jj)) < 1e-5 && ...
                           abs(s11(3, ii) - s22(3,jj)) < 1e-5 && ~found

                            tmp = [s11(:, 3-ii), s22(:, 3-jj)];
                            s1 = tmp(:)';
                            
                            found = 1;
                            nodes(j, :) = [];
                        end
                    end
                end
            end
            s11 = reshape(s1, 3, 2);
            len = size(nodes, 1);

            if found==1
                j = 1;
                found = 0;
            else
                j = j+1;
            end
        end
        new_segs = [new_segs; s1];
%         x = s1([1,4]);
%         y = s1(:,[2,5]);
%         z = s1(:,[3,6]);
%         plot3(x',y',z','LineWidth',2); hold on;
        len = size(nodes, 1);
    end
end