CGAL users discussion list

[Olivier Devillers <>]

Le 28/04/15 16:00, brYang a écrit :
> Thank you, Sebastien. I got you. I think I haven't made my question
> clearly.. What I want to know is where I can find the definition of "GT" and
> how does gt.construct_circumcenter_3_object() (in
> "Triangulation_cell_base_with_circumcenter_3.h" ( Line 122) )work?
> By the way, I am using CGAL 4.3.

You have to provide to the triangulation a geometric traits (GT)

usually youo use the kernel there, in the kernel concept you have
what the concept that

construct_circumcenter_3_object

should verify documented here:

http://doc.cgal.org/latest/Kernel_23/classKernel_1_1ConstructCircumcenter__3.html