TrackStart.cpp

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// ------------------------------------------------------------------------
// $RCSfile: TrackStart.cpp,v $
// ------------------------------------------------------------------------
// $Revision: 1.1.1.1 $
// ------------------------------------------------------------------------
// Copyright: see Copyright.readme
// ------------------------------------------------------------------------
//
// Class: TrackStart
//   The class for the OPAL START command.
//
// ------------------------------------------------------------------------
//
// $Date: 2000/03/27 09:33:47 $
// $Author: Andreas Adelmann $
//
// ------------------------------------------------------------------------

#include "Track/TrackStart.h"
#include "Attributes/Attributes.h"
#include "Track/Track.h"
#include "Algorithms/PartBunchBase.h"


// Class TrackStart
// ------------------------------------------------------------------------

// The attributes of class TrackStart.
namespace {
    enum {
        X,  // The initial horizontal   position in m.
        Y,  // The initial vertical     position in m.
        T,  // The initial longitudinal position in m.
        PX, // The initial horizontal   momentum in rad.
        PY, // The initial vertical     momentum in rad.
        PT, // The initial longitudinal momentum in rad.
        SIZE
    };
}


TrackStart::TrackStart():
    Action(SIZE, "START",
           "The \"START\" sub-command defines one particle for tracking "
           "through the given lattice.") {
    itsAttr[X]  = Attributes::makeReal
                  ("X",  "Initial horizontal position in m");
    itsAttr[PX] = Attributes::makeReal
                  ("PX", "Initial horizontal momentum in 1");
    itsAttr[Y]  = Attributes::makeReal
                  ("Y",  "Initial horizontal position in m");
    itsAttr[PY] = Attributes::makeReal
                  ("PY", "Initial horizontal momentum in 1");
    itsAttr[T]  = Attributes::makeReal
                  ("T",  "Initial horizontal position in m");
    itsAttr[PT] = Attributes::makeReal
                  ("PT", "Initial horizontal momentum in 1");

    registerOwnership(AttributeHandler::SUB_COMMAND);
}


TrackStart::TrackStart(const std::string &name, TrackStart *parent):
    Action(name, parent)
{}


TrackStart::~TrackStart()
{}


TrackStart *TrackStart::clone(const std::string &name) {
    return new TrackStart(name, this);
}


void TrackStart::execute() {
    double x  = Attributes::getReal(itsAttr[X]);
    double y  = Attributes::getReal(itsAttr[Y]);
    double t  = Attributes::getReal(itsAttr[T]);
    double px = Attributes::getReal(itsAttr[PX]);
    double py = Attributes::getReal(itsAttr[PY]);
    double pt = Attributes::getReal(itsAttr[PT]);
    Track::block->bunch->push_back(OpalParticle(x, px, y, py, t, pt));
}