52 lines
1.3 KiB
Matlab
52 lines
1.3 KiB
Matlab
function plot_3d_grid_data_slice(nx, ny, nz, dx, dy, dz, data)
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% 绘制三维网格数据的切片图
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% 输入参数：
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% nx, ny, nz - 各方向的网格数
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% dx, dy, dz - 各方向的网格尺寸向量
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% data - 物理量数据，维度为(nx, ny, nz)
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% 计算每个网格点的坐标位置（取网格中心点）
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x = zeros(1, nx);
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x(1) = dx(1)/2;
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for i = 2:nx
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x(i) = x(i-1) + (dx(i-1) + dx(i))/2;
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end
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y = zeros(1, ny);
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y(1) = dy(1)/2;
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for i = 2:ny
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y(i) = y(i-1) + (dy(i-1) + dy(i))/2;
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end
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z = zeros(1, nz);
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z(1) = dz(1)/2;
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for i = 2:nz
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z(i) = z(i-1) + (dz(i-1) + dz(i))/2;
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end
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% 创建三维网格
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[X, Y, Z] = meshgrid(x, y, z);
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% 注意：meshgrid生成的数组维度顺序为(ny, nx, nz)
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% 如果data是(nx, ny, nz)，需要转置
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data_plot = permute(data, [2, 1, 3]);
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% 创建新图形
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figure('Position', [100, 100, 800, 600]);
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% 使用slice绘制三个正交切面
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xslice = [x(round(nx/4)), x(round(nx/2)), x(round(3*nx/4))];
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yslice = [y(round(ny/4)), y(round(ny/2)), y(round(3*ny/4))];
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zslice = [z(round(nz/4)), z(round(nz/2)), z(round(3*nz/4))];
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slice(X, Y, Z, data_plot, xslice, yslice, zslice);
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shading interp;
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colorbar;
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colormap('jet');
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xlabel('X');
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ylabel('Y');
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zlabel('Z');
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title('三维网格物理量分布（切片图）');
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axis equal;
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view(3);
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grid on;
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end |