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//
// Copyright (C) 2003-2016 Sereina Riniker, Paolo Tosco
//
// @@ All Rights Reserved @@
// This file is part of the RDKit.
// The contents are covered by the terms of the BSD license
// which is included in the file license.txt, found at the root
// of the RDKit source tree.
//
#include <RDGeneral/export.h>
#ifndef __RD_SNAPSHOT_H__
#define __RD_SNAPSHOT_H__
#include <utility>
#include <Geometry/point.h>
#include <boost/shared_array.hpp>
namespace RDKit {
class Snapshot;
class Trajectory;
typedef std::vector<Snapshot> SnapshotVect;
} // namespace RDKit
namespace RDKit {
class RDKIT_TRAJECTORY_EXPORT Snapshot {
friend class Trajectory;
public:
/*! \brief Constructor
\param pos is a pointer to an array of (numPoints * dimension) doubles;
numPoints and dimension must match the Trajectory which is going to
contain this Snapshot
\param energy is the energy associated with this set of coordinates
*/
Snapshot(boost::shared_array<double> pos, double energy = 0.0)
: d_trajectory(nullptr), d_energy(energy), d_pos(std::move(pos)) {}
/*! \return a const pointer to the parent Trajectory
*/
const Trajectory *trajectory() const { return d_trajectory; }
/*! \param pointNum is the atom number whose coordinates will be retrieved
\return the coordinates at pointNum as a Point2D object;
requires the Trajectory dimension to be == 2
*/
RDGeom::Point2D getPoint2D(unsigned int pointNum) const;
/*! \param pointNum is the atom number whose coordinates will be retrieved
\return the coordinates at pointNum as a Point3D object;
requires the Trajectory dimension to be >= 2
*/
RDGeom::Point3D getPoint3D(unsigned int pointNum) const;
/*! \return the energy for this Snapshot
*/
double getEnergy() const { return d_energy; }
/*! \brief Sets the energy for this Snapshot
\param energy the energy value assigned to this Snapshot
*/
void setEnergy(double energy) { d_energy = energy; }
private:
// Pointer to the parent Trajectory object
const Trajectory *d_trajectory;
// Energy for this set of coordinates
double d_energy;
// shared array to Snapshot coordinates
boost::shared_array<double> d_pos;
};
} // namespace RDKit
#endif
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