HepMC3 event record library
WriterHEPEVT.cc
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1// -*- C++ -*-
2//
3// This file is part of HepMC
4// Copyright (C) 2014-2021 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"
14#include "HepMC3/Print.h"
15namespace HepMC3
16{
17
18
19WriterHEPEVT::WriterHEPEVT(const std::string &filename,
20 std::shared_ptr<GenRunInfo> run): m_file(filename), m_stream(&m_file), m_events_count(0)
21{
22 HEPMC3_WARNING("WriterHEPEVT::WriterHEPEVT: HEPEVT format is outdated. Please use HepMC3 format instead.")
24}
25
26WriterHEPEVT::WriterHEPEVT(std::ostream& stream,
27 std::shared_ptr<GenRunInfo> run): m_file(), m_stream(&stream), m_events_count(0)
28{
29 HEPMC3_WARNING("WriterHEPEVT::WriterHEPEVT: HEPEVT format is outdated. Please use HepMC3 format instead.")
31}
32
33WriterHEPEVT::WriterHEPEVT(std::shared_ptr<std::ostream> s_stream,
34 std::shared_ptr<GenRunInfo> run): m_file(), m_shared_stream(s_stream), m_stream(s_stream.get()), m_events_count(0)
35{
36 HEPMC3_WARNING("WriterHEPEVT::WriterHEPEVT: HEPEVT format is outdated. Please use HepMC3 format instead.")
38}
39
40void WriterHEPEVT::write_hepevt_particle(int index, bool iflong)
41{
42 char buf[512];//Note: the format is fixed, so no reason for complicatied tratment
43 char* cursor = &(buf[0]);
44 cursor += sprintf(cursor, "% 8i% 8i", m_hepevt_interface.status(index), m_hepevt_interface.id(index));
45 if (iflong)
46 {
47 cursor += sprintf(cursor, "% 8i% 8i", m_hepevt_interface.first_parent(index), m_hepevt_interface.last_parent(index));
48 cursor += sprintf(cursor, "% 8i% 8i", m_hepevt_interface.first_child(index), m_hepevt_interface.last_child(index));
49 cursor += sprintf(cursor, "% 19.8E% 19.8E% 19.8E% 19.8E% 19.8E\n", m_hepevt_interface.px(index), m_hepevt_interface.py(index), m_hepevt_interface.pz(index), m_hepevt_interface.e(index), m_hepevt_interface.m(index));
50 cursor += sprintf(cursor, "%-48s% 19.8E% 19.8E% 19.8E% 19.8E\n", " ", m_hepevt_interface.x(index), m_hepevt_interface.y(index), m_hepevt_interface.z(index), m_hepevt_interface.t(index));
51 }
52 else
53 {
54 cursor += sprintf(cursor, "% 8i% 8i", m_hepevt_interface.first_child(index), m_hepevt_interface.last_child(index));
55 cursor += sprintf(cursor, "% 19.8E% 19.8E% 19.8E% 19.8E\n", m_hepevt_interface.px(index), m_hepevt_interface.py(index), m_hepevt_interface.pz(index), m_hepevt_interface.m(index));
56 }
57 unsigned long length = cursor - &(buf[0]);
58 m_stream->write(buf, length);
59}
60
62{
63 char buf[512];//Note: the format is fixed, so no reason for complicatied tratment
64 char* cursor = buf;
65 cursor += sprintf(cursor, "E% 8i %8i\n", m_hepevt_interface.event_number(), m_hepevt_interface.number_entries());
66 unsigned long length = cursor - &(buf[0]);
67 m_stream->write(buf, length);
68}
69
71{
77}
78
80{
81 std::ofstream* ofs = dynamic_cast<std::ofstream*>(m_stream);
82 if (ofs && !ofs->is_open()) return;
83 if (ofs) ofs->close();
84}
85
87{
88 return (bool)m_file.rdstate();
89}
90
91void WriterHEPEVT::set_vertices_positions_present(bool iflong) { if (iflong) m_options["vertices_positions_are_absent"] = ""; else m_options.erase("vertices_positions_are_absent"); }
92
93bool WriterHEPEVT::get_vertices_positions_present() const { return (m_options.find("vertices_positions_are_absent") == m_options.end()); }
94
95} // namespace HepMC3
#define HEPMC3_WARNING(MESSAGE)
Macro for printing HEPMC3_HEPMC3_WARNING messages.
Definition: Errors.h:27
Definition of static class Print.
Definition of class WriterHEPEVT.
Stores event-related information.
Definition: GenEvent.h:41
int first_child(const int index) const
Get index of 1st daughter.
int last_parent(const int index) const
Get index of last mother.
int event_number() const
Get event number.
bool GenEvent_to_HEPEVT(const GenEvent *evt)
Convert GenEvent to HEPEVT.
int last_child(const int index) const
Get index of last daughter.
void allocate_internal_storage()
Allocates m_internal_storage storage in smart pointer to hold HEPEVT of fixed size.
int first_parent(const int index) const
Get index of 1st mother.
double pz(const int index) const
Get Z momentum.
double py(const int index) const
Get Y momentum.
int id(const int index) const
Get PDG particle id.
double t(const int index) const
Get production time.
double y(const int index) const
Get Y Production vertex.
bool fix_daughters()
Tries to fix list of daughters.
int number_entries() const
Get number of entries.
double m(const int index) const
Get generated mass.
int status(const int index) const
Get status code.
double px(const int index) const
Get X momentum.
double z(const int index) const
Get Z Production vertex.
double x(const int index) const
Get X Production vertex.
double e(const int index) const
Get Energy.
HEPEVT_Wrapper_Template< 100000 > m_hepevt_interface
Templated HEPEVT interface.
Definition: WriterHEPEVT.h:89
bool failed() override
Get stream error state flag.
Definition: WriterHEPEVT.cc:86
bool get_vertices_positions_present() const
get flag if vertex positions are available. The flag is deduced from m_options. If the m_options have...
Definition: WriterHEPEVT.cc:93
void set_vertices_positions_present(bool iflong)
set flag if vertex positions are available. Effectively this adds or removes key "vertices_positions_...
Definition: WriterHEPEVT.cc:91
virtual void write_hepevt_event_header()
Write event header to file.
Definition: WriterHEPEVT.cc:61
int m_events_count
Events count. Needed to generate unique object name.
Definition: WriterHEPEVT.h:88
virtual void write_hepevt_particle(int index, bool iflong=true)
Write particle to file.
Definition: WriterHEPEVT.cc:40
void close() override
Close file stream.
Definition: WriterHEPEVT.cc:79
std::ofstream m_file
Output file.
Definition: WriterHEPEVT.h:84
WriterHEPEVT(const std::string &filename, std::shared_ptr< GenRunInfo > run=nullptr)
Default constructor.
Definition: WriterHEPEVT.cc:19
void write_event(const GenEvent &evt) override
Write event to file.
Definition: WriterHEPEVT.cc:70
std::ostream * m_stream
Output stream.
Definition: WriterHEPEVT.h:86
std::map< std::string, std::string > m_options
options
Definition: Writer.h:68
HepMC3 main namespace.