How to megre meshgrid and stl file? (2024)

• 链接

  此评论的直接链接

  https://ww2.mathworks.cn/matlabcentral/answers/2138322-how-to-megre-meshgrid-and-stl-file#comment_3215316

% Define the vertices of the cube

vertices = [

0 0 0;

1 0 0;

1 1 0;

0 1 0;

0 0 1;

1 0 1;

1 1 1;

0 1 1

];

% Define the faces of the cube

faces = [

1 2 3; 1 3 4; % Bottom face

5 6 7; 5 7 8; % Top face

1 2 6; 1 6 5; % Front face

2 3 7; 2 7 6; % Right face

3 4 8; 3 8 7; % Back face

4 1 5; 4 5 8 % Left face

];

% Create a triangulation object

cube = triangulation(faces, vertices);

% Save the triangulation object as an STL file

stlwrite(cube, 'dummy_cube.stl');

disp('Dummy STL model created and saved as dummy_cube.stl');

% Load the STL file

fv = stlread('dummy_cube.stl');

% Extract vertices and faces from the loaded STL structure

vertices = fv.Points;

faces = fv.ConnectivityList;

% Create a meshgrid

[x, y] = meshgrid(linspace(min(vertices(:,1)), max(vertices(:,1)), 50), ...

linspace(min(vertices(:,2)), max(vertices(:,2)), 50));

% Define the function for the meshgrid. Here we use a simple sine function.

z = sin(sqrt(x.^2 + y.^2));

% Plot the STL model and meshgrid separately and together

figure;

% Subplot 1: STL model

subplot(1, 3, 1);

patch('Faces', faces, 'Vertices', vertices, ...

'FaceColor', [0.8 0.8 1.0], 'EdgeColor', 'none', 'FaceAlpha', 0.5);

view(3);

axis equal;

xlabel('X');

ylabel('Y');

zlabel('Z');

title('STL Model');

% Subplot 2: Meshgrid

subplot(1, 3, 2);

surf(x, y, z, 'FaceAlpha', 0.5, 'EdgeColor', 'none');

view(3);

axis equal;

xlabel('X');

ylabel('Y');

zlabel('Z');

title('Meshgrid');

% Subplot 3: Combined

subplot(1, 3, 3);

hold on;

patch('Faces', faces, 'Vertices', vertices, ...

'FaceColor', [0.8 0.8 1.0], 'EdgeColor', 'none', 'FaceAlpha', 0.5);

surf(x, y, z, 'FaceAlpha', 0.5, 'EdgeColor', 'none');

view(3);

axis equal;

hold off;

xlabel('X');

ylabel('Y');

zlabel('Z');

title('Combined STL Model and Meshgrid');

% Set the overall figure title

sgtitle('STL Model and Meshgrid Plots');

• 链接

  此评论的直接链接

  https://ww2.mathworks.cn/matlabcentral/answers/2138322-how-to-megre-meshgrid-and-stl-file#comment_3215311