66 lines
1.6 KiB
Matlab
66 lines
1.6 KiB
Matlab
function plot_3d_grid_data_volume(nx, ny, nz, dx, dy, dz, data)
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% 绘制三维网格数据的体绘制图
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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
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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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% 调整data维度
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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, 900, 700]);
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% 方法1：使用vol3d v2（如果安装了File Exchange的vol3d工具）
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% 如果没有安装，可以使用以下基本体绘制
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% 创建多个等值面
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levels = linspace(min(data(:)), max(data(:)), 5);
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for i = 2:length(levels)-1
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p = patch(isosurface(X, Y, Z, data_plot, levels(i)));
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isonormals(X, Y, Z, data_plot, p);
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set(p, 'FaceColor', 'interp', 'EdgeColor', 'none');
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% 根据数据值设置颜色
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cdata = get(p, 'FaceVertexCData');
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set(p, 'FaceVertexCData', cdata);
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end
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% 添加一些切片来显示内部结构
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hold on;
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h = slice(X, Y, Z, data_plot, x(round(nx/2)), y(round(ny/2)), z(round(nz/2)));
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set(h, 'FaceAlpha', 0.6, 'EdgeColor', 'none');
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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（体绘制）');
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axis equal;
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view(3);
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grid on;
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camlight;
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lighting gouraud;
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end |