soutifu.cc 11.8 KB
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/*! \file soutifu.cc
 * \brief inversion for source time function
 * 
 * ----------------------------------------------------------------------------
 * 
 * $Id$
 * \author Thomas Forbriger
 * \date 06/05/2011
 * 
 * inversion for source time function
 * 
 * Copyright (c) 2011 by Thomas Forbriger (BFO Schiltach) 
 * 
 * REVISIONS and CHANGES 
 *  - 06/05/2011   V1.0   Thomas Forbriger
 * 
 * ============================================================================
 */
#define SOUTIFU_VERSION \
  "SOUTIFU   V1.0   inversion for source time function"
#define SOUTIFU_CVSID \
  "$Id$"

#include <iostream>
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#include <fstream>
#include <tfxx/error.h>
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#include <tfxx/commandline.h>
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#include <tsxx/sffheaders.h>
#include <datrwxx/readany.h>
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#include <datrwxx/writeany.h>
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#include <stfinv/stfinvany.h>

/*----------------------------------------------------------------------*/
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using std::cout;
using std::cerr;
using std::endl;

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/*----------------------------------------------------------------------*/
// function to compare double
// is true if relative residual between a and b is smaller than eps
bool sameineps(const double &a, const double& b, const double& eps=1.e-8)
{
  double reldif=std::abs(a-b);
  return(reldif<(std::abs(b*eps)));
}

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/*----------------------------------------------------------------------*/

struct Options {
  bool verbose, debug, overwrite;
  bool writestf, writeconvolved;
  std::string stffilename, convolvedfilename;
  datrw::Eformat datafileformat;
}; // struct Options

/*----------------------------------------------------------------------*/

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int main(int iargc, char* argv[])
{

  // define usage information
  char usage_text[]=
  {
    SOUTIFU_VERSION "\n"
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    "usage: soutifu [-v] [-o] [-wc f] [-ws f] [--type f] [--para p]\n"
    "               parameters data synthetics" "\n"
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    "   or: soutifu --help|-h" "\n"
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    "   or: soutifu --xhelp" "\n"
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  };

  // define full help text
  char help_text[]=
  {
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    SOUTIFU_CVSID "\n"
    "\n"
    "Calculate optimized source time function to minimize misfit\n"
    "between recorded data and synthetic waveforms.\n"
    "\n"
    "data         name of file containing recorded data\n"
    "synthetics   name of file containing synthetic data\n"
    "parameters   parameterstring to select STF engine\n"
    "             The string consists of an ID selecting one of the\n"
    "             available engines and a set of options an parameters\n"
    "             to be passed to this engine.\n"
    "\n"
    "-v           be verbose\n"
    "-o           overwrite existing output files\n"
    "--type f     use file format type \"f\" for file I/O\n"
    "-wc f        write convolved synthetics to file \"f\"\n"
    "-ws f        write source time function to file \"f\"\n"
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    "\n"
    "Upon input the consistency of recorded and synthetic data are\n"
    "checked. For coordinates only receiver positions relative to\n"
    "source coordinates are checked, not absolute locations.\n"
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  };

  // define commandline options
  using namespace tfxx::cmdline;
  static Declare options[]= 
  {
    // 0: print help
    {"help",arg_no,"-"},
    // 1: verbose mode
    {"v",arg_no,"-"},
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    // 2: overwrite mode
    {"o",arg_no,"-"},
    // 3: file format
    {"type",arg_yes,"sff"},
    // 4: name of convolved synthetics
    {"wc",arg_yes,"-"},
    // 5: name of source time function
    {"ws",arg_yes,"-"},
    // 6: present full details
    {"xhelp",arg_no,"-"},
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    {NULL}
  };

  // no arguments? print usage...
  if (iargc<2) 
  {
    cerr << usage_text << endl;
    exit(0);
  }

  // collect options from commandline
  Commandline cmdline(iargc, argv, options);

  // help requested? print full help text...
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  if (cmdline.optset(0) || cmdline.optset(6))
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  {
    cerr << usage_text << endl;
    cerr << help_text << endl;
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    datrw::supported_input_data_types(cerr);
    if (cmdline.optset(6)) { datrw::online_help(cerr); }
    cerr << endl;
    stfinv::STFEngine::help(cerr);
    cerr << endl;
    if (cmdline.optset(6)) { stfinv::help(cerr); }
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    exit(0);
  }

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  /*----------------------------------------------------------------------*/
  // read options and parameters
  Options opt;
  opt.verbose=cmdline.optset(1);
  opt.overwrite=cmdline.optset(2);
  opt.datafileformat=datrw::anyID(cmdline.string_arg(3));
  opt.writeconvolved=cmdline.optset(4);
  opt.convolvedfilename=cmdline.string_arg(4);
  opt.writestf=cmdline.optset(5);
  opt.stffilename=cmdline.string_arg(5);

  TFXX_assert(cmdline.extra(), "missing parameter string");
  std::string parameters=cmdline.next();
  TFXX_assert(cmdline.extra(), "missing recorded data file name");
  std::string datafilename=cmdline.next();
  TFXX_assert(cmdline.extra(), "missing synthetics data file name");
  std::string syntheticsfilename=cmdline.next();

  /*----------------------------------------------------------------------*/
  // go
  // --
 
  // read input data
  // ---------------
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  typedef aff::Series<float> Tseries;
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  typedef ts::sff::File<Tseries> Tfile;
  Tfile recordeddata;
  Tfile syntheticdata;

  std::ios_base::openmode iopenmode
    =datrw::ianystream::openmode(opt.datafileformat);
  if (opt.verbose) { cout << "open input file " << datafilename << endl; }
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  {
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    std::ifstream ifs(datafilename.c_str(), iopenmode);
    datrw::ianystream is(ifs, opt.datafileformat);
    recordeddata.read(is.idatstream(), opt.verbose);
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  }

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  if (opt.verbose) { cout << "open input file " << syntheticsfilename << endl; }
  {
    std::ifstream ifs(syntheticsfilename.c_str(), iopenmode);
    datrw::ianystream is(ifs, opt.datafileformat);
    syntheticdata.read(is.idatstream(), opt.verbose);
  }
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  // check input data consistency and prepare output files
  // -----------------------------------------------------
  if (opt.verbose) 
  { 
    cout << "check input data consistency,\n"
      << "prepare output data containers, and\n"
      << "prepare waveform data workspace" << endl; 
  }

  // number of traces per file
  TFXX_assert(recordeddata.size() == syntheticdata.size(),
              "ERROR: inconsitent number of traces");
  const unsigned int ntraces=recordeddata.size();

  // output data
  Tfile convolvedsynthetics;
  Tfile stffile;

  // waveform data workspace
  stfinv::Tvectoroftriples vectoroftriples;
  stfinv::Waveform stfwaveform;

  convolvedsynthetics.fileheader=syntheticdata.fileheader;

  // cycle through all traces
  for (unsigned int itrace=0; itrace<ntraces; ++itrace)
  {
    if (opt.verbose)
    {
      cout << "  check trace #" << itrace+1 << endl;
    }
    // create a reference to the time series with trace header for thsi
    // specific trace as read from file
    const Tfile::Ttracevector::Ttimeseries& rdtseries=recordeddata[itrace];
    const Tfile::Ttracevector::Ttimeseries& sdtseries=syntheticdata[itrace];

    // create a time series to be used in the output of convolved synthetics
    // based on the input synthetics; copy trace header
    Tfile::Ttracevector::Ttimeseries cstseries(rdtseries.shape());
    cstseries.Mtraceindex=sdtseries.Mtraceindex;
    cstseries.header=sdtseries.header;

    // place reference in a waveform triple
    stfinv::WaveformTriple tracetriple;
    tracetriple.data=rdtseries;
    tracetriple.synthetics=sdtseries;
    tracetriple.convolvedsynthetics=cstseries;
    tracetriple.header.sampling.dt=rdtseries.header.wid2().dt;
    tracetriple.header.sampling.n=rdtseries.header.wid2().nsamples;

    TFXX_assert((rdtseries.header.wid2().nsamples 
                  == sdtseries.header.wid2().nsamples),
                "ERROR: inconsistent trace size");
    TFXX_assert(sameineps(rdtseries.header.wid2().dt,
                            sdtseries.header.wid2().dt),
                "ERROR: inconsistent sampling interval");

    // read out source coordinates
    tracetriple.header.sx=recordeddata.fileheader.srce().cx;
    tracetriple.header.sy=recordeddata.fileheader.srce().cy;
    tracetriple.header.sz=recordeddata.fileheader.srce().cz;

    // read out receiver coordinates
    tracetriple.header.rx=rdtseries.header.info().cx;
    tracetriple.header.ry=rdtseries.header.info().cy;
    tracetriple.header.rz=rdtseries.header.info().cz;

    // check coordinate consistency
    double ddx=rdtseries.header.info().cx-recordeddata.fileheader.srce().cx;
    double ddy=rdtseries.header.info().cy-recordeddata.fileheader.srce().cy;
    double ddz=rdtseries.header.info().cz-recordeddata.fileheader.srce().cz;
    double sdx=sdtseries.header.info().cx-syntheticdata.fileheader.srce().cx;
    double sdy=sdtseries.header.info().cy-syntheticdata.fileheader.srce().cy;
    double sdz=sdtseries.header.info().cz-syntheticdata.fileheader.srce().cz;
    TFXX_assert((sameineps(ddx,sdx) && sameineps(ddy,sdy) &&
                 sameineps(ddz,sdz)),
                "ERROR: inconsistent receiver positions");

    // check time consistency
    TFXX_assert((rdtseries.header.wid2().date 
                == recordeddata.fileheader.srce().date),
                "ERROR: trigger delay not supported");
    TFXX_assert((sdtseries.header.wid2().date 
                == syntheticdata.fileheader.srce().date),
                "ERROR: trigger delay not supported");

    // add this triple to collection
    vectoroftriples.push_back(tracetriple);

    // add this trace to convolved synthetics
    convolvedsynthetics.push_back(cstseries);

    // catch values for stf waveform
    if (itrace==0)
    {
      Tfile::Ttracevector::Ttimeseries stftseries(tracetriple.data.shape()); 

      stfwaveform.sampling.dt=tracetriple.header.sampling.dt;
      stfwaveform.sampling.n=tracetriple.header.sampling.n;
      stfwaveform.series=stftseries;

      stftseries.header.wid2().nsamples=stfwaveform.sampling.n;
      stftseries.header.wid2().dt=stfwaveform.sampling.dt;
      stftseries.header.wid2().date=libtime::now();
      stffile.fileheader.srce().date=stftseries.header.wid2().date;

      stffile.push_back(stftseries);
    } // if (itrace==0)

  } // for (unsigned int itrace=0; itrace<ntraces; ++itrace)
  
  // create STF engine
  // -----------------
  if (opt.verbose) 
  {
    parameters += ":verbose";
    cout << "create STF engine" << endl; 
  }
  stfinv::STFEngine engine(vectoroftriples, stfwaveform, parameters);

  // run STF engine
  // --------------
  if (opt.verbose) { cout << "run engine" << endl; }
  engine.run();

  // write results
  // -------------
  
  if (opt.writestf)
  {
    if (opt.verbose) 
    {
      cout << "write STF to file " << opt.stffilename << endl;
    }
    if (!opt.overwrite)
    {
      std::ifstream file(opt.stffilename.c_str(),std::ios_base::in);
      TFXX_assert((!file.good()),"ERROR: output file exists!");
    }
    std::ios_base::openmode oopenmode
      =datrw::oanystream::openmode(opt.datafileformat);
    std::ofstream ofs(opt.stffilename.c_str(), oopenmode);
    datrw::oanystream os(ofs, opt.datafileformat, opt.debug);
    
    os << stffile.fileheader.srce();
    for (unsigned int itrace=0; itrace<stffile.size(); ++itrace)
    {
      os << stffile[itrace].header.wid2();
      os << stffile[itrace].header.info();
      os << stffile[itrace].series();
    }
  } // if (opt.writestf)

  if (opt.writeconvolved)
  {
    if (opt.verbose) 
    {
      cout << "write convolved synthetics to file " 
        << opt.convolvedfilename << endl;
    }
    if (!opt.overwrite)
    {
      std::ifstream file(opt.convolvedfilename.c_str(),std::ios_base::in);
      TFXX_assert((!file.good()),"ERROR: output file exists!");
    }
    std::ios_base::openmode oopenmode
      =datrw::oanystream::openmode(opt.datafileformat);
    std::ofstream ofs(opt.convolvedfilename.c_str(), oopenmode);
    datrw::oanystream os(ofs, opt.datafileformat, opt.debug);
    
    os << convolvedsynthetics.fileheader.srce();
    for (unsigned int itrace=0; itrace<convolvedsynthetics.size(); ++itrace)
    {
      os << convolvedsynthetics[itrace].header.wid2();
      os << convolvedsynthetics[itrace].header.info();
      os << convolvedsynthetics[itrace].series();
    }
  } // if (opt.writeconvolved)
} // main
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/* ----- END OF soutifu.cc ----- */