/usr/include/gromacs/selection.h is in libgromacs-dev 2016.1-2.
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/*! \defgroup module_selection Parsing and Evaluation of Analysis Selections (selection)
* \ingroup group_analysismodules
* \brief
* Provides functionality for initializing and evaluating selections.
*
* The core of the selection engine is accessed through
* gmx::SelectionCollection, which manages a set of selections.
* Documentation for that class explains the general selection mechanisms.
*
* For each selection that is parsed using a gmx::SelectionCollection, a
* gmx::Selection handle is returned and can be used to access information
* about that selection. gmx::SelectionPosition is a helper class used to
* access information about individual positions in a selection. These classes
* refer to internal state within the gmx::SelectionCollection, and their
* contents update automatically when the gmx::SelectionCollection is compiled
* or evaluated.
*
* This module also provides gmx::SelectionOption and gmx::SelectionOptionInfo
* classes for declaring options that evaluate to selections (see \ref
* module_options for general explanation of the options mechanism). These
* classes provide the main interface to obtain gmx::Selection objects in
* trajectory analysis using gmx::TrajectoryAnalysisModule.
* To use these classes outside the trajectory analysis framework,
* a gmx::SelectionOptionManager or a gmx::SelectionOptionBehavior needs to be
* created to serve as a bridge between the selection option classes and the
* gmx::SelectionCollection object.
* \if libapi
* gmx::SelectionFileOption can be used to implement generic file input for
* selection options (done internally within gmx::SelectionOptionBehavior).
*
* The selection module contains some lower-level functionality that is
* currently internal to it (centerofmass.h, indexutil.h, poscalc.h,
* position.h), but could possibly be useful also outside the module.
* It should be considered whether they should be moved somewhere else.
* \endif
*
* \author Teemu Murtola <teemu.murtola@gmail.com>
*/
/*! \file
* \brief
* Public API convenience header for selection handling.
*
* \author Teemu Murtola <teemu.murtola@gmail.com>
* \inpublicapi
* \ingroup module_selection
*/
#ifndef GMX_SELECTION_H
#define GMX_SELECTION_H
#include "gromacs/selection/selection.h"
#include "gromacs/selection/selectioncollection.h"
#include "gromacs/selection/selectionoption.h"
#include "gromacs/selection/selectionoptionbehavior.h"
#include "gromacs/selection/selectionoptionmanager.h"
#endif
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