OETorsionParams

Attention

This API is currently available in C++ and Python.

class  OETorsionParams : public OEMolPotential::OEInteractParams

The OETorsionParams class defines generic torsion parameters used in any force field which has torsion term.

The following methods are publicly inherited from OEInteractParams:
The OETorsionParams class defines the following public methods:

Constructors

OETorsionParams(bond: OEBondBase, atom1: OEAtomBase,
                atom2: OEAtomBase, type: int) -> OETorsionParams
OETorsionParams(arg2: OETorsionParams) -> OETorsionParams

Constructor and copy constructor. Constructs an OETorsionParams object for a middle bond passed as the first argument and two terminal atoms (second and third arguments).

GetAtomIndex1

GetAtomIndex1() -> int

Returns atom index of the first atom for a torsion for which the instance of OETorsionParams was created.

GetAtomIndex2

GetAtomIndex2() -> int

Returns atom index of the second atom for a torsion for which the instance of OETorsionParams was created.

GetAtomIndex3

GetAtomIndex3() -> int

Returns atom index of the third atom for a torsion for which the instance of OETorsionParams was created.

GetAtomIndex4

GetAtomIndex4() -> int

Returns atom index of the forth atom for a torsion for which the instance of OETorsionParams was created.

IsValid

IsValid() -> bool
IsValid(pred: OEUnaryAtomPred) -> bool
IsValid(pred: OEUnaryBondPred) -> bool

Methods which check if an instance of the OETorsionParams class was created for the torsion to be included in force field calculation. First method is checking if the above instance was correctly constructed, while two remaining methods provide predicates which test if atoms (second method) and a middle bond (third method) belong to that instance.

IsTorsion

IsTorsion(atom1: OEAtomBase, atom2: OEAtomBase, atom3: OEAtomBase,
          atom4: OEAtomBase) -> bool

Used to check if 4 atoms passed as arguments belong to the current OETorsionParams instance.