function plot_3d_grid_patch_optimized(nx, ny, nz, dx, dy, dz, data)
% 使用patch一次性绘制所有网格（优化版本）
% 输入参数：
%   nx, ny, nz - 各方向的网格数
%   dx, dy, dz - 各方向的网格尺寸向量
%   data - 物理量数据，维度为(nx, ny, nz)

% 计算每个网格的边界坐标
x_edges = zeros(nx+1, 1);
x_edges(1) = 0;
for i = 1:nx
    x_edges(i+1) = x_edges(i) + dx(i);
end

y_edges = zeros(ny+1, 1);
y_edges(1) = 0;
for i = 1:ny
    y_edges(i+1) = y_edges(i) + dy(i);
end

z_edges = zeros(nz+1, 1);
z_edges(1) = 0;
for i = 1:nz
    z_edges(i+1) = z_edges(i) + dz(i);
end

% 创建网格顶点坐标
[X_edges, Y_edges, Z_edges] = ndgrid(x_edges, y_edges, z_edges);

% 重新排列顶点
vertices = [X_edges(:), Y_edges(:), Z_edges(:)];

% 创建每个体素的8个顶点索引
n_cells = nx * ny * nz;
faces = zeros(n_cells * 6, 4);  % 每个体素6个面，每个面4个顶点
face_colors = zeros(n_cells * 6, 1);

% 顶点编号方式：按照(i,j,k)顺序
% 每个体素的8个顶点索引
% v1: (i,j,k)
% v2: (i+1,j,k)
% v3: (i+1,j+1,k)
% v4: (i,j+1,k)
% v5: (i,j,k+1)
% v6: (i+1,j,k+1)
% v7: (i+1,j+1,k+1)
% v8: (i,j+1,k+1)

face_idx = 1;
for i = 1:nx
    for j = 1:ny
        for k = 1:nz
            % 计算当前体素的8个顶点索引
            idx = @(ii, jj, kk) (ii-1)*(ny+1)*(nz+1) + (jj-1)*(nz+1) + kk;
            
            v1 = idx(i, j, k);
            v2 = idx(i+1, j, k);
            v3 = idx(i+1, j+1, k);
            v4 = idx(i, j+1, k);
            v5 = idx(i, j, k+1);
            v6 = idx(i+1, j, k+1);
            v7 = idx(i+1, j+1, k+1);
            v8 = idx(i, j+1, k+1);
            
            % 当前体素的值
            cell_value = data(i, j, k);
            
            % 底面 (k层)
            faces(face_idx, :) = [v1, v2, v3, v4];
            face_colors(face_idx) = cell_value;
            face_idx = face_idx + 1;
            
            % 顶面 (k+1层)
            faces(face_idx, :) = [v5, v6, v7, v8];
            face_colors(face_idx) = cell_value;
            face_idx = face_idx + 1;
            
            % 前面 (j层)
            faces(face_idx, :) = [v1, v2, v6, v5];
            face_colors(face_idx) = cell_value;
            face_idx = face_idx + 1;
            
            % 后面 (j+1层)
            faces(face_idx, :) = [v4, v3, v7, v8];
            face_colors(face_idx) = cell_value;
            face_idx = face_idx + 1;
            
            % 左面 (i层)
            faces(face_idx, :) = [v1, v4, v8, v5];
            face_colors(face_idx) = cell_value;
            face_idx = face_idx + 1;
            
            % 右面 (i+1层)
            faces(face_idx, :) = [v2, v3, v7, v6];
            face_colors(face_idx) = cell_value;
            face_idx = face_idx + 1;
        end
    end
end

% 创建图形
figure('Position', [100, 100, 1000, 800]);

% 绘制所有面
patch('Vertices', vertices, 'Faces', faces, ...
      'FaceVertexCData', face_colors, ...
      'FaceColor', 'flat', ...
      'CDataMapping', 'scaled', ...
      'EdgeColor', 'none', ...
      'FaceAlpha', 0.9);

% 设置属性
colorbar;
colormap jet;
xlabel('X');
ylabel('Y');
zlabel('Z');
title('三维笛卡尔网格全充满物理量分布（优化版）');
axis equal;
view(3);
grid on;
box on;

% 光照设置
lighting gouraud;
light('Position', [1 1 1], 'Style', 'infinite');
light('Position', [-1 -1 -1], 'Style', 'infinite');
end