CGAL users discussion list

Hello again,

I am using the lower envelope of planes classes, and I was wondering if there 
was an easy enough way to incoporate plane ID (i.e., envelope history) in the 
faces of the given arrangement. I know that there is a way to produce an 
arrangement with history, but it hoping that there is some available simple 
example code concerning these cases.

Thanks,
Amir.