cut the object in space (separate a 3D object into two distinct parts) using a plane

Hi! Is there any code that allows me to cut the object in space (separate a 3D object into two distinct parts) using a plane?

nodes_ext = importdata("NODES.mat");
faces_ext = importdata("FACES.mat");
load V_plane.mat
P = [24.3377 -21.8635 81.9835];

figure
plot3(P(:,1),P(:,2),P(:,3),'k.','Markersize',20);
hold on
trimesh(faces_ext(:,:),nodes_ext(:,1),nodes_ext(:,2),nodes_ext(:,3),'EdgeColor','k','Linewidth',0.1,'Facecolor','b','FaceAlpha',.4)
patch(V(:,1), V(:,2),V(:,3),'k');
hold off
axis equal

[Catalytic]

We cannot run your code, since NODES.mat and FACES.mat are missing.

[Alberto Acri]

added files!

Answer 1

[Catalytic]

The IsoCut command here looks like it will do this -

https://www.mathworks.com/matlabcentral/fileexchange/87112-isocut