79 lines
1.9 KiB
Matlab
79 lines
1.9 KiB
Matlab
% 将 SBCmesh.mat 导出为 OpticsFEM3D 可读文本网格 SBCmesh.dat
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% 用法：先运行 getMesh.m 生成 SBCmesh.mat，再运行本脚本
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clc;
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if ~isfile('SBCmesh.mat')
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error('请先运行 getMesh.m 生成 SBCmesh.mat');
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end
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load('SBCmesh.mat', 'mesh');
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fid = fopen('SBCmesh1.dat', 'w');
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fprintf(fid, 'NbrVertex\n%d\nVertex\n', mesh.NbrVertex);
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% 兼容 Vertex 为 3×N 或 N×3
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V = mesh.Vertex;
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if size(V,1) == 3 && size(V,2) ~= 3
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V = V';
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end
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for i = 1:mesh.NbrVertex
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fprintf(fid, '%.16g %.16g %.16g\n', V(i,1), V(i,2), V(i,3));
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end
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T = mesh.Tet;
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if size(T,1) == 4 && size(T,2) ~= 4
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T = T';
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end
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fprintf(fid, 'NbrTet\n%d\nTet\n', mesh.NbrTet);
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for i = 1:mesh.NbrTet
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fprintf(fid, '%d %d %d %d\n', T(i,1), T(i,2), T(i,3), T(i,4));
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end
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fprintf(fid, 'DomainOfTet\n');
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for i = 1:mesh.NbrTet
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fprintf(fid, '%d\n', mesh.DomainOfTet(i));
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end
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fprintf(fid, 'NbrEdge\n%d\nEdge\n', mesh.NbrEdge);
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for i = 1:mesh.NbrEdge
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fprintf(fid, '%d %d\n', mesh.Edge(i,1), mesh.Edge(i,2));
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end
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EOT = mesh.EdgeOfTet;
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if size(EOT,1) == 6
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EOT = EOT';
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end
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fprintf(fid, 'EdgeOfTet\n');
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for i = 1:mesh.NbrTet
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fprintf(fid, '%d %d %d %d %d %d\n', EOT(i,1), EOT(i,2), EOT(i,3), EOT(i,4), EOT(i,5), EOT(i,6));
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end
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Tr = mesh.Tri;
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if size(Tr,1) == 3
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Tr = Tr';
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end
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fprintf(fid, 'NbrTri\n%d\nTri\n', mesh.NbrTri);
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for i = 1:mesh.NbrTri
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fprintf(fid, '%d %d %d\n', Tr(i,1), Tr(i,2), Tr(i,3));
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end
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fprintf(fid, 'DomainOfTri\n');
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for i = 1:mesh.NbrTri
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fprintf(fid, '%d\n', mesh.DomainOfTri(i));
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end
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fprintf(fid, 'ConnOfTri\n');
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for i = 1:mesh.NbrTri
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fprintf(fid, '%d %d\n', mesh.ConnOfTri(i,1), mesh.ConnOfTri(i,2));
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end
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% 面法向（与 getMesh.m 中 NormOfFace 一致）
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normRows = [1;2;3;4;5;14];
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fprintf(fid, 'NormOfFace\n%d\n', numel(normRows));
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for k = 1:length(normRows)
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d = normRows(k);
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n = mesh.NormOfFace(d,:);
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fprintf(fid, '%d %.16g %.16g %.16g\n', d, n(1), n(2), n(3));
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end
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fclose(fid);
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fprintf('已写出 SBCmesh.dat\n');
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