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Hi all,

I built a structure for the Delaunay tree (DTree). My problem is the 
following:

when I insert the first point (p1,p2), it works well, which means.

DTree.node = the big first triangle
DTree.child = {delta_1,delta_2,delta_3}

Now, when I insert the second point the location work well, suppose it is in
delta_3,

Now, I build a child for delta_3 using insert_in_face and incident_faces

Since, insert_in_face destruct delta_3, the delta_3 of DTree changes also. But
I want to keep it for the next location.

Is there a way to use insert_in_face and keep in an another memory the initial
face such us we can use it later on?

Regards
Faniry