draw a unit cube in matlab

To draw a unit cube in Matlab, we can use the patch() function to create a six-faced cube. Here's an example code:

main.m
% Create the eight vertices of the cube
v = [0 0 0; 1 0 0; 1 1 0; 0 1 0; 0 0 1; 1 0 1; 1 1 1; 0 1 1];

% Create the faces of the cube using the vertex indices
f = [1 2 3 4; 2 6 7 3; 4 3 7 8; 1 5 8 4; 1 2 6 5; 5 6 7 8];

% Scale the vertices to create a unit cube
v = v - 0.5;

% Draw the cube
patch('Faces', f, 'Vertices', v, 'FaceColor', 'none', 'EdgeColor', 'b');
axis equal;
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Here, we first define the eight vertices of the unit cube as a 3-by-8 matrix v. We then define the faces of the cube as a 6-by-4 matrix f, where each row of f specifies the indices of the vertices that make up a face.

To make the cube a unit cube, we shift each vertex by -0.5, so that the cube is centered at the origin and has a side length of 1. Finally, we use the patch() function to draw the cube, setting the face color to "none" and the edge color to "b" (blue). The axis equal command ensures that the cube is drawn with equal aspect ratios for the x, y, and z axes.