source: git/external/Hector/H_BeamLine.cc@ 127644a

/*
---- Hector the simulator ----
   A fast simulator of particles through generic beamlines.
   J. de Favereau, X. Rouby ~~~ hector_devel@cp3.phys.ucl.ac.be

        http://www.fynu.ucl.ac.be/hector.html

   Centre de Physique des Particules et de Phénoménologie (CP3)
   Université Catholique de Louvain (UCL)
*/

/// \file H_BeamLine.cc
/// \brief Reads external files and retrieves features of the real beam optical elements

// c++ #includes
#include <iostream>
#include <fstream>
#include <sstream>

// local #includes
#include "H_BeamLine.h"
#include "H_BeamLineParser.h"
#include "H_RectEllipticAperture.h"
#include "H_RectangularAperture.h"
#include "H_EllipticAperture.h"
#include "H_CircularAperture.h"
#include "H_RectangularDipole.h"
#include "H_SectorDipole.h"
#include "H_HorizontalQuadrupole.h"
#include "H_VerticalQuadrupole.h"
#include "H_HorizontalKicker.h"
#include "H_VerticalKicker.h"
#include "H_RectangularCollimator.h"
#include "H_Marker.h"

using namespace std;

// Caution : mad conventions for vertically(horizontally) focusing quadrupoles
// are opposite to Wille's. See fill() for more details.

H_BeamLine::H_BeamLine(const int si, const float length) : H_AbstractBeamLine(length){
        direction = (si >= abs(si)) ? 1 : -1;
        ips=0;
        ipx=0;
        ipy=0;
        iptx=0;
        ipty=0;
}

H_BeamLine::H_BeamLine(const H_BeamLine& beam) : H_AbstractBeamLine(beam) {
        direction = beam.direction;
        ips = beam.ips;
        ipx = beam.ipx;
        ipy = beam.ipy;
        iptx = beam.iptx;
        ipty = beam.ipty;
}

H_BeamLine& H_BeamLine::operator=(const H_BeamLine& beam) {
        if(this==&beam) return *this;
        direction = beam.direction;
        ips = beam.ips;
        ipx = beam.ipx;
    ipy = beam.ipy;
    iptx = beam.iptx;
    ipty = beam.ipty;
        return *this;
}

void H_BeamLine::findIP(const string filename) {
        findIP(filename,"IP5");
        return;
}

void H_BeamLine::findIP(const string filename, const string ipname) {
        // searches for the IP position in the extended table.
        ifstream tabfile(filename.c_str());
                if (! tabfile.is_open()) cout << "\t ERROR: I Can't open \"" << filename << "\"" << endl;
        bool found = false;
        int N_col=0;
        string headers[40];  // table of all column headers
        int header_type[40]; // table of all column types

        string temp_string;
        H_BeamLineParser e;
        istringstream curstring;

        while ( getline(tabfile,temp_string)) {
                curstring.clear(); // needed when using istringstream::str(string) several times !
                curstring.str(temp_string);

                // gets the features of each element
                if (found) {
                        for (int col=0; col < N_col; col++) e.setProperties(curstring,header_type[col]);
                        if(strstr(e.name.c_str(),ipname.c_str())) {
                                ips = e.s; //e.printProperties();
                                ipx = e.x;
                                ipy = e.y;
                                iptx = e.px*URAD;
                                ipty = e.py*URAD;
                        }
                } else if (strstr(temp_string.c_str(),"K0L")) {  //searches for the beginning of the element list.
                        found = true;

                        // reads the title of each column
                        while(curstring.good()) { curstring >> headers[N_col]; if(headers[N_col]!="*") N_col++;}
                        if(VERBOSE) cout << N_col << " columns identified" << endl;

                        // identifies each column
                        for (int col=0; col< N_col; col++)      header_type[col] =  column_identification(headers[col]);
                        
                        getline(tabfile,temp_string); // skip one line
                } // if(... "K0L")
        } // while (!eof)

        if (!found) cout << "\t ERROR ! IP not found." << endl;
        tabfile.close();
}

double* H_BeamLine::getIPProperties() {
        double* temp = new double[4];
        temp[0] = ipx;
        temp[1] = ipy;
        temp[2] = iptx;
        temp[3] = ipty;
        return temp;
}

void H_BeamLine::fill(const string filename) {
        fill(filename,1,"IP5");
        return;
}


void H_BeamLine::fill(const string filename, const int dir, const string ipname) {
        string headers[40];  // table of all column headers
        int header_type[40]; // table of all column types
        findIP(filename,ipname);
        ifstream tabfile(filename.c_str());
                if (! tabfile.is_open()) cout << "\t ERROR: I Can't open \"" << filename << "\"" << endl;
        if(VERBOSE) {
                cout<<"Using file : "<< filename <<" in the "<<((direction>0)?"positive":"negative")<<" direction."<<endl;
                cout<<"IP was found at position : "<<ips<<endl<<endl;
        }
        bool found = false; // found = true when the beginning of the element list is reached
        int type, N_col=0;
        float previous_betax =0, previous_betay=0; // needed when direction ==1
        float previous_dx =0, previous_dy=0; // needed when direction ==1
        float previous_x =0, previous_y=0; // needed when direction ==1

        string temp_string;
        H_BeamLineParser e;
        istringstream curstring;
        H_OpticalElement *el = 0;
        H_Aperture * ap = 0;


        while (getline(tabfile,temp_string)) {
                curstring.clear(); // needed when using several tims istringstream::str(string)
                curstring.str(temp_string);

        // gets the features of each element
                if (found) {
                        // reads each column
                        for (int col=0; col < N_col; col++) {
                                e.setProperties(curstring,header_type[col]);
                        }
                        //e.printProperties();
                        
                        type =0; //init
                        if(e.k0l!=0) { if(strstr(e.name.c_str(),"MB.")) type = SDIPOLE; else type = RDIPOLE;} //all SBEND seems to be called MB.xxxxx.xx
                        else if(e.k1l!=0) type = (e.k1l>0)?HQUADRUPOLE:VQUADRUPOLE;
                        else if(e.hkick!=0) type = HKICKER;
                        else if(e.vkick!=0) type = VKICKER;
                        else if(strstr(e.name.c_str(),"DRIFT")) type=DRIFT;
                        else if((strstr(e.name.c_str(),"DFB"))||(strstr(e.name.c_str(),"TAS"))||(strstr(e.name.c_str(),"TAN"))||(strstr(e.name.c_str(),"TCL"))) type = RCOLLIMATOR;
                        else if(strstr(e.name.c_str(),ipname.c_str())) { type=IP; }
                        else type=MARKER;
                        
                        e.s = (e.s > ips) ? (e.s -ips - e.l)*(direction) : (e.s-ips)*(direction);
                        
                        el=0; //init
                        switch(type) {
                                case RDIPOLE:     { el = new H_RectangularDipole(e.name.c_str(),e.s,dir*e.k0l/e.l,e.l); } break;
                                case SDIPOLE:     { el = new H_SectorDipole(e.name.c_str(),e.s,dir*e.k0l/e.l,e.l); } break;
                                case VQUADRUPOLE: { el = new H_VerticalQuadrupole(e.name.c_str(),e.s,-(e.k1l/e.l),e.l); } break;
                                case HQUADRUPOLE: { el = new H_HorizontalQuadrupole(e.name.c_str(),e.s,-(e.k1l/e.l),e.l); } break;
                                case VKICKER:     { el = new H_VerticalKicker(e.name.c_str(),e.s,e.vkick,e.l); } break;
                                case HKICKER:     { el = new H_HorizontalKicker(e.name.c_str(),e.s,e.hkick,e.l); } break;
                                case RCOLLIMATOR: { el = new H_RectangularCollimator(e.name.c_str(),e.s,e.l); } break;
                                case DRIFT: {previous_betax = e.betx; previous_betay = e.bety; previous_dx = e.dx; previous_dy = e.dy; previous_x = e.x; previous_y = e.y;} break;
                                case IP: { el = new H_Marker(e.name.c_str(),e.s); } break;
                                default: break;
                        }

                        ap = 0; //init
                        if(e.aper_1 !=0 || e.aper_2 !=0 || e.aper_3 !=0 || e.aper_4 != 0) {
                                e.aper_1 *= URAD;
                                e.aper_2 *= URAD;
                                e.aper_3 *= URAD;
                                e.aper_4 *= URAD; // in [m] in the tables !

                                if(strstr(e.apertype.c_str(),"RECTELLIPSE")) ap = new H_RectEllipticAperture(e.aper_1,e.aper_2,e.aper_3,e.aper_4,0,0);
                                else if(strstr(e.apertype.c_str(),"CIRCLE")) ap = new H_CircularAperture(e.aper_1,0,0);
                                else if(strstr(e.apertype.c_str(),"RECTANGLE")) ap = new H_RectangularAperture(e.aper_1,e.aper_2,0,0);
                                else if(strstr(e.apertype.c_str(),"ELLIPSE")) ap = new H_EllipticAperture(e.aper_1,e.aper_2,0,0);
                        }

                        if(el!=0) {
                                if (direction<0) {
                                        el->setBetaX(e.betx);
                                        el->setBetaY(e.bety);
                                        el->setDX(e.dx);
                                        el->setDY(e.dy);
                                        el->setRelX(e.x);
                                        el->setRelY(e.y);
                                } else {
                                        el->setBetaX(previous_betax);
                                        el->setBetaY(previous_betay);
                                        el->setDX(previous_dx);
                                        el->setDY(previous_dy);
                                        el->setRelX(previous_x);
                                        el->setRelY(previous_y);
                                }
                                if(ap!=0) { 
                                        el->setAperture(ap); 
                                //              delete ap; // ap deleted in H_AbstractBeamLine::~H_AbstractBeamLine
                                }
        
                                /// Parses all the elements, but only keeps the ones from the IP till the desired length
                                if(e.s>=0 && e.s<beam_length) add(*el);

                        // delete el; // el deleted in H_AbstractBeamLine::~H_AbstractBeamLine
                        } // if(el!=0)
                } // if (found)
                else if(strstr(temp_string.c_str(),"K0L")) { // if (!found)
                //searches for the beginning of the element list.
                        found = true;

                        // reads the title of each column
                        while(curstring.good()) { curstring >> headers[N_col]; if(headers[N_col]!="*") N_col++;}
                        if(VERBOSE) cout << N_col << " columns identified" << endl;

                        // identifies each column
                        for (int col=0; col< N_col; col++) {
                                header_type[col] =  column_identification(headers[col]);
                        }
                        getline(tabfile,temp_string);
                } // if temp_string <-> "K0L"

        } // while (!eof)
        tabfile.close();
}