init

2026-03-13 11:24:41 +08:00
commit 04e2bb29c7
238 changed files with 29102 additions and 0 deletions
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+function plot_3d_grid_data_scatter(nx, ny, nz, dx, dy, dz, data)
+% 绘制三维网格数据的点云图
+% 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)
+
+% 计算每个网格点的坐标位置
+x = zeros(1, nx);
+x(1) = dx(1)/2;
+for i = 2:nx
+    x(i) = x(i-1) + (dx(i-1) + dx(i))/2;
+end
+
+y = zeros(1, ny);
+y(1) = dy(1)/2;
+for i = 2:ny
+    y(i) = y(i-1) + (dy(i-1) + dy(i))/2;
+end
+
+z = zeros(1, nz);
+z(1) = dz(1)/2;
+for i = 2:nz
+    z(i) = z(i-1) + (dz(i-1) + dz(i))/2;
+end
+
+% 创建所有网格点的坐标矩阵
+[X, Y, Z] = ndgrid(x, y, z);
+% data已经是(nx, ny, nz)格式，与ndgrid输出匹配
+
+% 将数据展平用于scatter3
+X_flat = X(:);
+Y_flat = Y(:);
+Z_flat = Z(:);
+data_flat = data(:);
+
+% 创建新图形
+figure('Position', [100, 100, 800, 600]);
+
+% 使用scatter3绘制点云图
+scatter3(X_flat, Y_flat, Z_flat, 20, data_flat, 'filled');
+colorbar;
+colormap('jet');
+xlabel('X');
+ylabel('Y');
+zlabel('Z');
+title('三维网格物理量分布（点云图）');
+axis equal;
+view(3);
+grid on;
+
+% 添加透明度设置（可选，用于显示内部点）
+alpha(0.8);
+end