Identify two coordinates on the X-axis and Y-axis of a 3D object

Hello! I should retrieve the outermost coordinates on the XY plane of a 3D object.

In detail:

I have a 3D object -> I display it on the XY plane -> on this XY plane I want to determine the outermost coordinates:

• two coordinates on the X axis (one on the left and one on the right)
• two coordinates on the Y axis (one above and one below)

data = importdata("NODES_finger_1.txt");
figure
plot3(data(:,1),data(:,2),data(:,3),'k.','Markersize',10)
grid on
xlabel('x')
ylabel('y')
zlabel('z')
view([15,50,30])

Answer 1

[Matt J]

[x,y]=deal(data(:,1),data(:,2));

[~,xmin]=min(x);
[~,xmax]=max(x);
[~,ymin]=min(y);
[~,ymax]=max(y);

points = data([xmin,xmax,ymin,ymax],1:2)