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This function sets the integer atom type field of each atom in a
molecule to its Tripos atom type. This function typically requires
OEAssignAromaticFlags has been called to perceive aromaticity using
the Tripos aromaticity model, i.e.
OEAssignAromaticFlags(mol,OEAroModelTripos). This is required
as Tripos considers compounds such as pyrrole to be aliphatic and so
the carbon atoms of pyrrole should be correctly typed as ``C.2'' not
``C.ar''. Using the Tripos aromaticity model, however, is not a
strong requirement and other aromaticity models can be used (for
example if C.ar is desired in pyrrole).
The integer atom type properties are set to the values defined in the
OETriposType namespace. So for example, planar nitrogen with Tripos
atom type N.pl3 will be assigned the value OETriposType::Npl3.
Atoms are cannot be assigned a Tripos atom type, are assigned value zero,
a.k.a. OETriposType::Du. This function returns true if all the
atoms could be assigned at type.
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