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"
14 #include "HepMC3/HEPEVT_Wrapper.h"
15 #include "HepMC3/Print.h"
16 namespace HepMC3
17 {
18 
19 
20 WriterHEPEVT::WriterHEPEVT(const std::string &filename): m_events_count(0),m_vertices_positions_present(true), m_file(filename), m_stream(&m_file)
21 {
22  hepevtbuffer=(char*)(new struct HEPEVT());
24 }
25 
27 {
28  hepevtbuffer=(char*)(new struct HEPEVT());
30 }
31 
32 void WriterHEPEVT::write_hepevt_particle( int index, bool iflong )
33 {
34  char buf[512];//Note: the format is fixed, so no reason for complicatied tratment
35  char* cursor=&(buf[0]);
36  cursor +=sprintf(cursor, "% 8i% 8i",HEPEVT_Wrapper::status(index), HEPEVT_Wrapper::id(index));
37  if (iflong)
38  {
39  cursor +=sprintf(cursor,"% 8i% 8i",HEPEVT_Wrapper::first_parent(index),HEPEVT_Wrapper::last_parent(index));
40  cursor +=sprintf(cursor,"% 8i% 8i",HEPEVT_Wrapper::first_child(index),HEPEVT_Wrapper::last_child(index));
41  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));
42  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));
43  }
44  else
45  {
46  cursor +=sprintf(cursor, "% 8i% 8i",HEPEVT_Wrapper::first_child(index),HEPEVT_Wrapper::last_child(index));
47  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));
48  }
49  unsigned long length = cursor - &(buf[0]);
50  m_stream->write( buf, length );
51 }
52 
54 {
55  char buf[512];//Note: the format is fixed, so no reason for complicatied tratment
56  char* cursor=buf;
57  cursor +=sprintf(cursor,"E% 8i %8i\n",HEPEVT_Wrapper::event_number(),HEPEVT_Wrapper::number_entries());
58  unsigned long length = cursor - &(buf[0]);
59  m_stream->write( buf, length );
60 }
61 
63 {
69 }
70 
72 {
73  std::ofstream* ofs = dynamic_cast<std::ofstream*>(m_stream);
74  if (ofs && !ofs->is_open()) return;
75  if (ofs) ofs->close();
76 }
77 
79 {
80  return (bool)m_file.rdstate();
81 }
82 
84 
86 
87 } // namespace HepMC3
static double m(const int &index)
Get generated mass.
Definition of class WriterHEPEVT.
HepMC3 main namespace.
Definition: ReaderGZ.h:28
static int last_child(const int &index)
Get index of last daughter.
std::ofstream m_file
Output file.
Definition: WriterHEPEVT.h:76
static double z(const int &index)
Get Z Production vertex.
char * hepevtbuffer
Pointer to HEPEVT Fortran common block/C struct.
Definition: WriterHEPEVT.h:78
bool m_vertices_positions_present
true if vertex positions are available
Definition: WriterHEPEVT.h:80
static double y(const int &index)
Get Y Production vertex.
static double t(const int &index)
Get production time.
int m_events_count
Events count. Needed to generate unique object name.
Definition: WriterHEPEVT.h:79
static int status(const int &index)
Get status code.
static int event_number()
Get event number.
bool get_vertices_positions_present() const
get flag if vertex positions are available
Definition: WriterHEPEVT.cc:85
static double x(const int &index)
Get X Production vertex.
static double pz(const int &index)
Get Z momentum.
virtual void write_hepevt_particle(int index, bool iflong=true)
Write particle to file.
Definition: WriterHEPEVT.cc:32
static double e(const int &index)
Get Energy.
WriterHEPEVT(const std::string &filename)
Default constructor.
Definition: WriterHEPEVT.cc:20
static void set_hepevt_address(char *c)
Set Fortran block address.
void write_event(const GenEvent &evt)
Write event to file.
Definition: WriterHEPEVT.cc:62
std::ostream * m_stream
Output stream.
Definition: WriterHEPEVT.h:77
bool failed()
Get stream error state flag.
Definition: WriterHEPEVT.cc:78
virtual void write_hepevt_event_header()
Write event header to file.
Definition: WriterHEPEVT.cc:53
void close()
Close file stream.
Definition: WriterHEPEVT.cc:71
static bool fix_daughters()
Tries to fix list of daughters.
Stores event-related information.
Definition: GenEvent.h:42
static double py(const int &index)
Get Y momentum.
Fortran common block HEPEVT.
static int first_child(const int &index)
Get index of 1st daughter.
void set_vertices_positions_present(bool iflong)
set flag if vertex positions are available
Definition: WriterHEPEVT.cc:83
static int id(const int &index)
Get PDG particle id.
static bool GenEvent_to_HEPEVT(const GenEvent *evt)
Convert GenEvent to HEPEVT.
static int first_parent(const int &index)
Get index of 1st mother.
static double px(const int &index)
Get X momentum.
static int last_parent(const int &index)
Get index of last mother.
Definition of class HEPEVT_Wrapper.
static int number_entries()
Get number of entries.