99 lines
2.8 KiB
Matlab
99 lines
2.8 KiB
Matlab
function plot_3d_grid_voxel_full(nx, ny, nz, dx, dy, dz, data)
|
|
% 绘制三维笛卡尔网格全充满的体素图（每个网格单一颜色）
|
|
% 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
|
|
|
|
% 创建图形窗口
|
|
figure('Position', [100, 100, 1000, 800]);
|
|
hold on;
|
|
|
|
% 设置颜色映射
|
|
colormap jet;
|
|
caxis([min(data(:)), max(data(:))]);
|
|
|
|
% 绘制每个体素
|
|
alpha_value = 0.9; % 透明度
|
|
|
|
for i = 1:nx
|
|
for j = 1:ny
|
|
for k = 1:nz
|
|
% 获取当前体素的边界
|
|
x_min = x_edges(i);
|
|
x_max = x_edges(i+1);
|
|
y_min = y_edges(j);
|
|
y_max = y_edges(j+1);
|
|
z_min = z_edges(k);
|
|
z_max = z_edges(k+1);
|
|
|
|
% 获取当前体素的物理量值
|
|
value = data(i, j, k);
|
|
|
|
% 创建体素的8个顶点
|
|
vertices = [x_min, y_min, z_min;
|
|
x_max, y_min, z_min;
|
|
x_max, y_max, z_min;
|
|
x_min, y_max, z_min;
|
|
x_min, y_min, z_max;
|
|
x_max, y_min, z_max;
|
|
x_max, y_max, z_max;
|
|
x_min, y_max, z_max];
|
|
|
|
% 创建6个面的顶点索引
|
|
faces = [1 2 3 4; % 底面
|
|
5 6 7 8; % 顶面
|
|
1 2 6 5; % 前面
|
|
2 3 7 6; % 右面
|
|
3 4 8 7; % 后面
|
|
4 1 5 8]; % 左面
|
|
|
|
% 关键修改：使用 'flat' 确保每个面单一颜色
|
|
% 并且为每个面指定相同的颜色值
|
|
patch('Vertices', vertices, 'Faces', faces, ...
|
|
'FaceColor', 'flat', ... % 'flat' 确保每个面单一颜色
|
|
'FaceVertexCData', value * ones(size(faces, 1), 1), ... % 所有面使用相同颜色值
|
|
'CDataMapping', 'scaled', ...
|
|
'FaceAlpha', alpha_value, ...
|
|
'EdgeColor', 'none');
|
|
end
|
|
end
|
|
end
|
|
|
|
% 设置图形属性
|
|
colorbar;
|
|
xlabel('X');
|
|
ylabel('Y');
|
|
zlabel('Z');
|
|
title('三维笛卡尔网格全充满物理量分布（每个网格单一颜色）');
|
|
axis equal;
|
|
view(3);
|
|
grid on;
|
|
box on;
|
|
|
|
% 设置光照
|
|
lighting gouraud;
|
|
light('Position', [1 1 1], 'Style', 'infinite');
|
|
light('Position', [-1 -1 -1], 'Style', 'infinite');
|
|
|
|
hold off;
|
|
end |