Add hydrogens

Hello everybody! How avogadro add hydrogens? What algorithm use in avogadro?
With best regards, Shikolay Anatoliy.

On Oct 1, 2009, at 2:51 AM, Анатолий Шиколай wrote:

Hello everybody! How avogadro add hydrogens? What algorithm use in
avogadro?

Avogadro uses Open Babel to recognize missing hydrogens and add them.
There’s no published algorithm – it uses a set of atom typing
patterns and “implicit valence rules.”

If you’re seeing specific bugs, please publish a bug report and we’ll
fix them.

Thanks,
-Geoff