parmed.topologyobjects.TrigonalAngle

class parmed.topologyobjects.TrigonalAngle(atom1, atom2, atom3, atom4, type=None)

A trigonal-angle term in the AMOEBA force field. It exists in a pattern like the one shown below

A1 | |

A4—-A2—-A3

Parameters

atom1Atom

The first atom involved in the trigonal angle

atom2Atom

The central atom involved in the trigonal angle

atom3Atom

The third atom involved in the trigonal angle

atom4Atom

The fourth atom involved in the trigonal angle

typeAngleType

The angle type containing the parameters

Notes

Either `Atom`s or `Bond`s can be contained within this trigonal angle

Methods

delete()

Sets all atoms in this term to None, and its type if it exists

__init__(atom1, atom2, atom3, atom4, type=None)

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__(atom1, atom2, atom3, atom4[, type])	Initialize self.
delete()	Sets all atoms in this term to None, and its type if it exists