How to extract edges of a whole 3D plot and also for the holes in it?

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Faez Alkadi
Faez Alkadi on 30 Sep 2017
Commented: Faez Alkadi on 24 Oct 2017
I have used the function (plotIGES) to plot a 3D IGES surface(as shown in the picture and attached).And I want to extract the edges of the whole surface and the hole(s) in it?
According to plotIGES function the surface can be plotted as triangular patches or triangular mesh as shown
FacePlot=plotIGES(ParameterData,1,1,1000,1,10,1,'r');%you can change the second input to 2 to get triangular mesh
xlabel('X')
ylabel('Y')
zlabel('Z')
Help would be appreciated.
Thank you so much.

Accepted Answer

KSSV
KSSV on 5 Oct 2017
clear all
load fv.mat ;
%
tri = fv.faces ;
coor = fv.vertices ;
[e,te,e2t,bnd] = connectivity(coor(:,1:2),tri) ;
triplot(tri,coor(:,1),coor(:,2))
hold on
plot(coor(bnd,1),coor(bnd,2),'*r')
  1 Comment
Faez Alkadi
Faez Alkadi on 24 Oct 2017
This was good for .stl file format. But thank you so much for the great effort.

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