HepMC3 event record library
WriterHEPEVT.cc
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1// -*- C++ -*-
2//
3// This file is part of HepMC
4// Copyright (C) 2014-2019 The HepMC collaboration (see AUTHORS for details)
5//
6/**
7 * @file WriterHEPEVT.cc
8 * @brief Implementation of \b class WriterHEPEVT
9 *
10 */
11#include <sstream>
12#include <cstdio> // sprintf
13#include "HepMC3/WriterHEPEVT.h"
15#include "HepMC3/Print.h"
16namespace HepMC3
17{
18
19
20WriterHEPEVT::WriterHEPEVT(const std::string &filename): m_file(filename), m_stream(&m_file), m_events_count(0),m_vertices_positions_present(true)
21{
22 HEPMC3_WARNING( "WriterHEPEVT::WriterHEPEVT: HEPEVT format is outdated. Please use HepMC3 format instead." )
23 hepevtbuffer=(char*)(new struct HEPEVT());
25}
26
27WriterHEPEVT::WriterHEPEVT(std::ostream& stream): m_file(), m_stream(&stream), m_events_count(0),m_vertices_positions_present(true)
28{
29 HEPMC3_WARNING( "WriterHEPEVT::WriterHEPEVT: HEPEVT format is outdated. Please use HepMC3 format instead." )
30 hepevtbuffer=(char*)(new struct HEPEVT());
32}
33
34void WriterHEPEVT::write_hepevt_particle( int index, bool iflong )
35{
36 char buf[512];//Note: the format is fixed, so no reason for complicatied tratment
37 char* cursor=&(buf[0]);
38 cursor +=sprintf(cursor, "% 8i% 8i",HEPEVT_Wrapper::status(index), HEPEVT_Wrapper::id(index));
39 if (iflong)
40 {
41 cursor +=sprintf(cursor,"% 8i% 8i",HEPEVT_Wrapper::first_parent(index),HEPEVT_Wrapper::last_parent(index));
42 cursor +=sprintf(cursor,"% 8i% 8i",HEPEVT_Wrapper::first_child(index),HEPEVT_Wrapper::last_child(index));
43 cursor +=sprintf(cursor,"% 19.8E% 19.8E% 19.8E% 19.8E% 19.8E\n",HEPEVT_Wrapper::px(index),HEPEVT_Wrapper::py(index),HEPEVT_Wrapper::pz(index),HEPEVT_Wrapper::e(index),HEPEVT_Wrapper::m(index));
44 cursor +=sprintf(cursor, "%-48s% 19.8E% 19.8E% 19.8E% 19.8E\n"," ",HEPEVT_Wrapper::x(index),HEPEVT_Wrapper::y(index),HEPEVT_Wrapper::z(index),HEPEVT_Wrapper::t(index));
45 }
46 else
47 {
48 cursor +=sprintf(cursor, "% 8i% 8i",HEPEVT_Wrapper::first_child(index),HEPEVT_Wrapper::last_child(index));
49 cursor +=sprintf(cursor, "% 19.8E% 19.8E% 19.8E% 19.8E\n",HEPEVT_Wrapper::px(index),HEPEVT_Wrapper::py(index),HEPEVT_Wrapper::pz(index),HEPEVT_Wrapper::m(index));
50 }
51 unsigned long length = cursor - &(buf[0]);
52 m_stream->write( buf, length );
53}
54
56{
57 char buf[512];//Note: the format is fixed, so no reason for complicatied tratment
58 char* cursor=buf;
59 cursor +=sprintf(cursor,"E% 8i %8i\n",HEPEVT_Wrapper::event_number(),HEPEVT_Wrapper::number_entries());
60 unsigned long length = cursor - &(buf[0]);
61 m_stream->write( buf, length );
62}
63
65{
71}
72
74{
75 std::ofstream* ofs = dynamic_cast<std::ofstream*>(m_stream);
76 if (ofs && !ofs->is_open()) return;
77 if (ofs) ofs->close();
78}
79
81{
82 return (bool)m_file.rdstate();
83}
84
86
88
89} // namespace HepMC3
#define HEPMC3_WARNING(MESSAGE)
Macro for printing HEPMC3_HEPMC3_WARNING messages.
Definition: Errors.h:26
Definition of class HEPEVT_Wrapper.
Definition of static class Print.
Definition of class WriterHEPEVT.
Stores event-related information.
Definition: GenEvent.h:41
static double pz(const int &index)
Get Z momentum.
static int last_child(const int &index)
Get index of last daughter.
static double py(const int &index)
Get Y momentum.
static double m(const int &index)
Get generated mass.
static bool GenEvent_to_HEPEVT(const GenEvent *evt)
Convert GenEvent to HEPEVT.
static bool fix_daughters()
Tries to fix list of daughters.
static void set_hepevt_address(char *c)
Set Fortran block address.
static double y(const int &index)
Get Y Production vertex.
static double t(const int &index)
Get production time.
static int last_parent(const int &index)
Get index of last mother.
static double e(const int &index)
Get Energy.
static double z(const int &index)
Get Z Production vertex.
static double x(const int &index)
Get X Production vertex.
static int first_child(const int &index)
Get index of 1st daughter.
static int event_number()
Get event number.
static int status(const int &index)
Get status code.
static double px(const int &index)
Get X momentum.
static int first_parent(const int &index)
Get index of 1st mother.
static int number_entries()
Get number of entries.
static int id(const int &index)
Get PDG particle id.
WriterHEPEVT(const std::string &filename)
Default constructor.
Definition: WriterHEPEVT.cc:20
bool failed() override
Get stream error state flag.
Definition: WriterHEPEVT.cc:80
bool get_vertices_positions_present() const
get flag if vertex positions are available
Definition: WriterHEPEVT.cc:87
void set_vertices_positions_present(bool iflong)
set flag if vertex positions are available
Definition: WriterHEPEVT.cc:85
virtual void write_hepevt_event_header()
Write event header to file.
Definition: WriterHEPEVT.cc:55
int m_events_count
Events count. Needed to generate unique object name.
Definition: WriterHEPEVT.h:80
virtual void write_hepevt_particle(int index, bool iflong=true)
Write particle to file.
Definition: WriterHEPEVT.cc:34
void close() override
Close file stream.
Definition: WriterHEPEVT.cc:73
std::ofstream m_file
Output file.
Definition: WriterHEPEVT.h:77
char * hepevtbuffer
Pointer to HEPEVT Fortran common block/C struct.
Definition: WriterHEPEVT.h:79
void write_event(const GenEvent &evt) override
Write event to file.
Definition: WriterHEPEVT.cc:64
bool m_vertices_positions_present
true if vertex positions are available
Definition: WriterHEPEVT.h:81
std::ostream * m_stream
Output stream.
Definition: WriterHEPEVT.h:78
HepMC3 main namespace.
Fortran common block HEPEVT.