Include bond order in TopologyGraph #461
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PR Summary:
Foyer
currently does not understand bond order in itsTopologyGraph
representation and in its SMARTS grammar aside from number of connected
neighbors [C;X4], for example.
This PR adds bond order as an attribute when adding bonds in the
TopologyGraph
, accepted options currently are:"1" : single bonds
"2" : double bonds
"3" : triple bonds
"ar" : aromatic bonds
"am" : amide bonds
"un": unknown,
"du": dummy
"nc": not connected
The last 3 bond types ("un", "du", and "nc") are subject to change and
may not be here in the final iteration of this PR.
Support has been added when converting parmed structures, openff
topologies, as well as GMSO topologies.
PR Checklist