Clear Filters
Clear Filters

Make faces of cube transparent

12 views (last 30 days)
monkey_matlab
monkey_matlab on 22 Sep 2017
Commented: Ayush singhal on 26 Apr 2021
Hello,
I have made a 3D cube but would like to have the faces appear transparent. How do I go about doing that? Thanks.
Here is my code:
vert = [0 0 0;1 0 0;1 1 0;0 1 0;0 0 1;1 0 1;1 1 1;0 1 1];
fac = [1 2 6 5;2 3 7 6;3 4 8 7;4 1 5 8;1 2 3 4;5 6 7 8];
patch('Vertices',vert,'Faces',fac,...
'FaceVertexCData',hsv(6),'FaceColor','flat')
view(3)
axis vis3d
rotate3d
xlabel('x')
ylabel('y')
zlabel('z')

Accepted Answer

Jan
Jan on 22 Sep 2017
patch('Vertices',vert,'Faces',fac,...
'FaceVertexCData',hsv(6),'FaceColor','flat', ...
'FaceAlpha', 0.5); % <== Add this
  3 Comments
Steven Lord
Steven Lord on 23 Apr 2021
Draw a cube.
Go around one of the square faces and label the corners 1, 2, 6, and 5 in that order.
Find the other square face that has the line between 2 and 6 as one of its edges.
Label the corner of that square next to 2 with a 3 and the one next to the 6 with a 7.
This gives you the [2 3 7 6] face.
Find the square face that has points labeled 1, 2, and 3. Label the remaining corner 4.
This gives you the [1 2 3 4] face.
Continue until all the points have been labeled. For this simple shape there's only one point left, the 8.
Each face will consist of the points representing one of the rows in the fac variable and the edges between those points.
Ayush singhal
Ayush singhal on 26 Apr 2021
Thanks I got it.
I have one more question.
[x y] = meshgrid(-6:1:6); % Generate x and y data
z = zeros(size(x,2)); % Generate z data
surf(x, y,z) % Plot the surface
view(2)
axis padded
hold on
vert = [0 0 0;3 0 0;3 3 0;0 3 0;0 0 3;3 0 3;3 3 3;0 3 3];
fac = [1 2 6 5;2 3 7 6;3 4 8 7;4 1 5 8;1 2 3 4;5 6 7 8];
patch('Vertices',vert,'Faces',fac,...
'FaceVertexCData',hsv(6),'FaceColor','flat', ...
'FaceAlpha', 0);
view(3)
axis vis3d
rotate3d
xlabel('x')
ylabel('y')
zlabel('z')
%theta in radian
In the above code, I have put the cube on image plane but how to centred the cube on the plane. Is it due to the lower face of cube of else?
could you modify it or give me some insight?

Sign in to comment.

More Answers (0)

Tags

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!