AlignmentsPlugins.cpp

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//==========================================================================
//  AIDA Detector description implementation 
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author     : M.Frank
//
//==========================================================================
 
// Framework includes
#include <DD4hep/Printout.h>
#include <DD4hep/DetectorTools.h>
#include <DD4hep/DetFactoryHelper.h>
 
using namespace dd4hep::align;
 
// ======================================================================================
#include <DDAlign/GlobalAlignmentWriter.h>
long create_global_alignment_xml_file(dd4hep::Detector& description, int argc, char** argv)   {
  dd4hep::DetElement top;
  std::string output, path = "/world";
  bool enable_transactions = false, arg_error = false;
  for(int i=1; i<argc;++i) {
    if ( argv[i] && (argv[i][0]=='-' || argv[i][0]=='/') ) {
      const char* p = ::strchr(argv[i],'=');
      if ( p && strncmp(argv[i]+1,"-output",7)==0 )
        output = p+1;
      else if ( p && strncmp(argv[i]+1,"-path",5)==0 )
        path = p+1;
      else if ( strncmp(argv[i]+1,"-transactions",5)==0 )
        enable_transactions = true;
      else
        arg_error = true;
    }
  }
 
  if ( arg_error || output.empty() || path.empty() )  {
    std::cout <<
      "Usage: -plugin <name> -arg [-arg]                                      \n"
      "     name:   factory nameDD4hep_GlobalAlignmentWriter                \n\n"
      "     -output <string>         Path to the output file generated.       \n"
      "     -path   <string>         Path to the detector element for which   \n"
      "                              the alignment file should be written.    \n"
      "     -transactions            Enable output transactions.              \n"
      "\tArguments given: " << dd4hep::arguments(argc,argv) << std::endl << std::flush;
    ::exit(EINVAL);
  }
 
  dd4hep::printout(dd4hep::ALWAYS,"AlignmentXmlWriter",
                   "++ Writing dd4hep alignment constants of the \"%s\" "
                   "DetElement tree to file \"%s\"",
                   path.c_str(), output.c_str());
  top = dd4hep::detail::tools::findDaughterElement(description.world(),path);
  if ( top.isValid() )   {
    GlobalAlignmentWriter wr(description);
    return wr.write(wr.dump(top,enable_transactions), output);
  }
  dd4hep::except("AlignmentXmlWriter","++ Invalid top level detector element name: %s",path.c_str());
  return 1;
}
DECLARE_APPLY(DD4hep_GlobalAlignmentXmlWriter, create_global_alignment_xml_file)