Plot points on a tetrahedron

Hello,

I need to plot a bunch of points on a tetrahedron. I am getting stuck when I use the mesh function for the tetrahedron. I need to be able to plot a tetrahedron and then plot other points on a tetrahedron.

These are the 4 corners of the tetrahedron that I need to plot -

(1/2, 1/sqrt(2), 0), (-1/2, 0, 1/sqrt(2)), (-1/2, 0, -1/sqrt(2)), (1/2, -1/sqrt(2), 0)

How do I go on about this?

Answer 1

[Devineni Aslesha]

Hi Sunayana,

To plot a tetrahedron with the four vertices, use the below code.

FV.Vertices = [1/2 1/sqrt(2) 0; -1/2 0 1/sqrt(2); -1/2 0 -1/sqrt(2); 1/2 -1/sqrt(2) 0];
FV.Faces = nchoosek([1 2 3 4],3);
FV.FaceVertexCData = rand(4,3);
FV.FaceColor = 'interp';
patch(FV)
view(3)

For more information, refer the following link.

https://www.mathworks.com/help/matlab/ref/patch.html#busd9x8-1