Take slices of the cube
2 次查看(过去 30 天)
显示 更早的评论
Hi everyone the following code creates random cubes inside a big cube:
clc;
clear all;
%y z coordinates:
vert = [1 1 -1;
-1 1 -1;
-1 1 1;
1 1 1;
-1 -1 1;
1 -1 1;
1 -1 -1;
-1 -1 -1];
%These are the 6 faces of the cube, each is defined by connecting 4 of the
%available vertices:
fac = [1 2 3 4;
4 3 5 6;
6 7 8 5;
1 2 8 7;
6 7 1 4;
2 3 5 8];
% I defined a new cube whose length is 1 and centers at the origin.
vert2 = vert * .05;
fac2 = fac;
patch('Faces',fac,'Vertices',vert,'Facecolor', 'w'); % patch function for the first big cube.
axis([-1, 1, -1, 1, -1, 1]);
axis equal;
hold on;
rng(123); %// Set seed for reproducibility
num_squares = 100; %// Set total number of squares
%// New - to store the coordinates
coords = [];
%// For remembering the colours
colors = [];
%// For each square...
for idx = 1 : num_squares
%// Take the base cube and add an offset to each coordinate
%// Each coordinate will range from [-1,1]
vert_new = bsxfun(@plus, vert2, 2*rand(1,3)-1);
%// New - For the coordinates matrix
coords = cat(3, coords, vert_new);
%// Generate a random colour for each cube
color = rand(1,3);
%// New - Save the colour
colors = cat(1, colors, color);
%// Draw the cube
%patch('Faces', fac, 'Vertices', vert_new, 'FaceColor', color);
patch('Faces', fac, 'Vertices', vert_new);
axis off;
end
%// Post processing
material metal;
alpha('color');
alphamap('rampdown');
view(3);
and gives this :
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/950649/image.png)
does anyone know how can i plot slices of the cube ?
like this one:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/950654/image.png)
0 个评论
回答(1 个)
Image Analyst
2022-4-2
How about the slice() function?
7 个评论
Image Analyst
2022-4-3
I guess there would then be no black squares except along the outside perimeter of the image.
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!