ForceAtoms

class sknano.core.atoms.ForceAtoms(atoms=None, update_item_class=True, **kwargs)

Bases: sknano.core.atoms.atoms.Atoms

An Atoms sub-class for ForceAtoms.

Sub-class of Atoms class, and a container class for lists of ForceAtom instances.

Parameters:atoms ({None, sequence, ForceAtoms}, optional) – if not None, then a list of ForceAtom instance objects or an existing ForceAtoms instance object.

Attributes

M	Total mass of Atoms.
Natoms	Number of atoms in Atoms.
elements	ndarray of Atom.elements.
f	Vectors of ForceAtom forces.
fmtstr	Format string.
forces	Alias for f.
fx	ndarray of Atoms \(f_x\) components.
fy	ndarray of Atoms \(f_y\) components.
fz	ndarray of Atoms \(f_z\) components.
masses	ndarray of Atom.masss.
symbols	ndarray of Atom.symbols.

Methods

append(atom)
clear()
copy()
count(item)
extend(other)
filter(condition[, invert])	Filter Atoms by condition.
filtered(condition[, invert])	Return new list of Atoms filtered by condition.
get_atoms([asarray, aslist])	Return Atoms either as list (default) or numpy array or self.
getattr(attr[, default, recursive])	Get ndarray of atom attributes attr.
index(item, *args)
insert(i, atom)
mapatomattr([from_attr, to_attr, attrmap])	Set/update atom attribute from another atom attribute with dict.
pop([i])
remove(item)
reset_attrs(**kwargs)	Call corresponding reset_attrs method on each atom
reverse()
rezero([epsilon])	Set values with absolute value less than epsilon to zero.
select([selstr, selstrlist, verbose])	Return Atom or Atoms from selection command.
sort([key, reverse])
todict()	Return dict of constructor parameters.
update_attrs(**kwargs)	Call update_attrs method on each atom.