CGAL users discussion list

[Guillaume Damiand <>]

Hi Michael;


Le 16/03/2022 à 23:14, Michael Vennettilli ( via 
cgal-discuss Mailing List) a écrit :
> Hello all,
>
> I am trying to construct some shapes using the linear cell complex 
> framework. 

Nice !

> My thinking on this is really in terms of the beta functions on darts. 
> From what I gather, darts are deprecated in the current version of 
> CGAL, and users are to specify dart attributes and work with 
> dart_handles instead. Is there any way of using something like the 
> betas on dart_handles? I'd prefer not to have to use deprecated code 
> if possible.

What is deprecated is the direct use of darts; but they are still there. 
The difference is that you get all the information in a dart from a 
combinatorial map.
A Dart_handle is a kind of pointer to a dart.

Let us take an example:
Dart_handle dh=....

In the old code (deprecated and removed in the last version of CGAL) you 
can do dh->beta(1).

Now you have to do: cm.beta(dh, 1);
cm being a combinatorial map (or a linear cell complex).

Home this help.

You can contact me (in private email if you want).

Best
Guillaume



> Thanks,
>
> Mike


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