Impropers

class sknano.core.atoms.mixins.Impropers(*args, degrees=False, **kwargs)

Bases: sknano.core.atoms.mixins.AngularTopologyCollection

Base class for collection of atom Impropers.

Parameters:

• topolist ({None, sequence, Impropers}, optional) – if not None, then a list of Improper objects
• parent (Parent Molecule, if any.) –
• degrees (bool, optional) –

Attributes

Nimpropers	Number of Impropers in Impropers.
Ntypes	Number of unique Topology.types.
angles	ndarray of angles.
atom_ids	list of atom_ids.
degrees	bool setting for returning angles in degrees.
fmtstr	Format string.
ids	list of ids.
impropers	ndarray of angless.
mean	An alias for TopologyCollection.mean_measure.
mean_angle	Mean angle.
mean_improper	Mean improper angle.
mean_measure	Mean measure.
measures	ndarray of measures.
parent	Parent Molecule, if any.
statistics	Improper stats.
strains	ndarray of strains.
types	list of types.
unique	Return new TopologyCollection object containing the set of unique Topologys.

Methods

append(item)
clear()
compute_strains(reference)	Return ndarray of topology measure strains.
copy()
count(item)
extend(other)
index(item, *args)
insert(i, item)
pop([i])
remove(item)
reverse()
sort([key, reverse])
todict()	Return dict of constructor parameters.