CGAL users discussion list

[Efi Fogel <>]

I'm afraid that you are trying to use undocumented features.
If all you need is vertical decomposition, you should look at the CGAL::decompose() free function of the "2D Arrangement" package.

On Mon, Mar 5, 2012 at 8:04 PM, djulzz <> wrote:

I must add that when I print my trapezoid using cout, I get a plethora of
details, but the trapezoid_iostream.h (or similar filename dont have the
header accessible right now), is too complex for my little understanding.
One thing I can tell is that to print the decomposition,
trapezoid_iostream.h first gets the traits of the trapezoids
(td.get_traits), and in the few lines inside the write function, uses
is_left_unbouded on the traits. My traits when fed to cout seam to have the
is_left_unbouded method, but outside of cout, do not, because they are not
of type Td_X_Trapezoid.

I do not quite realize the magic happening inside the overloaded <<operator
for Trapezoidal_decomposition_2< Traits >, and would immensely appreciate
someone to help me.

-----
Julien Esposito
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