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

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Alberto Acri 2023-10-2

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回答： Catalytic 2023-10-2

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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

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Catalytic 2023-10-2

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

Alberto Acri 2023-10-2

added files!

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回答（1 个）

Catalytic 2023-10-2

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2028340-cut-the-object-in-space-separate-a-3d-object-into-two-distinct-parts-using-a-plane#answer_1323825

The IsoCut command here looks like it will do this -

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

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MATLAB Graphics Graphics Objects Graphics Object Programming

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