Selection type

type Selection

A Selection is used to select a group of atoms. Examples of selections are “name H” and “(x < 45 and name O) or name C”. See the full documentation for more information about the selection language.

function Selection(selection::AbstractString)

Create a Selection from a selection string.

function deepcopy(selection::Selection)

Make a deep copy of a selection.

function size(selection::Selection)

Get the size of a selection, i.e. the number of atoms we are selecting together.

function evaluate(selection::Selection, frame::Frame)

Evaluate a selection on a given frame. This function return a list of indexes or tuples of indexes of atoms in the frame matching the selection.

function selection_string(selection::Selection)

Get the selection string used to create a given selection.