evalline()

void datrw::thiesdl1::DataLine::evalline ( )

private

check consistency of data line and fill data value fields

Definition at line 89 of file thiesdl1line.cc.

References datrw::thiesdl1::helper::chalfminute(), datrw::thiesdl1::helper::coneday(), DL1_dlassert, gain, Mcounts, Mline, Mtime, and Mvalue.

Referenced by DataLine().

    {
      DL1_dlassert(Mline.length()==27, "unexpected length of data line", Mline);
      // check for expected characters
      const char cmismatch[]="character mismatch";
      DL1_dlassert(Mline.substr(2,1)==".", cmismatch, Mline);
      DL1_dlassert(Mline.substr(10,1)==".", cmismatch, Mline);
      DL1_dlassert(Mline.substr(15,1)==".", cmismatch, Mline);
      DL1_dlassert(Mline.substr(18,1)==".", cmismatch, Mline);
      DL1_dlassert(Mline.substr(24,1)==":", cmismatch, Mline);
      DL1_dlassert(Mline.substr(6,1)==" ", cmismatch, Mline);
      DL1_dlassert(Mline.substr(12,1)==" ", cmismatch, Mline);
      DL1_dlassert(Mline.substr(21,1)==" ", cmismatch, Mline);
      // extract time and date
      int year, month, day, hour, minute;
      std::istringstream iss;
      iss.clear();
      iss.str(Mline.substr(13,2));
      iss >> day;
      iss.clear();
      iss.str(Mline.substr(16,2));
      iss >> month;
      iss.clear();
      iss.str(Mline.substr(19,2));
      iss >> year;
      iss.clear();
      iss.str(Mline.substr(22,2));
      iss >> hour;
      iss.clear();
      iss.str(Mline.substr(25,2));
      iss >> minute;
      if (year < 100) { year += 1900; }
      if (year < 1970) { year += 100; }
      libtime::TAbsoluteTime intime(year,month,day,hour,minute);
      // check time and date
      if (hour!=24)
      {
        DL1_dlassert(((intime.year()==year)
                      && (intime.month()==month)
                      && (intime.day()==day)
                      && (intime.hour()==hour)
                      && (intime.minute()==minute)),
                     "invalid date value", Mline);
      }
      else
      {
        DL1_dlassert((minute==0),
                     "invalid time value (expected: 24:00UT)", Mline);
        libtime::TAbsoluteTime thedayonly(intime-helper::coneday);
        DL1_dlassert(((thedayonly.year()==year)
                      && (thedayonly.month()==month)
                      && (thedayonly.day()==day)),
                     "invalid date value", Mline);
      }
      Mtime=intime-helper::chalfminute;
      // check float value for time
      double ftime=double(hour)+int(0.5+1000.*double(minute)/60.)/1000.;
      double rftime;
      iss.clear();
      iss.str(Mline.substr(0,6));
      iss >> rftime;
      double diff=ftime-rftime;
      if (diff<0) { diff=-diff; }
      if (!(diff < 0.002))
      { 
        /*
        Logger(log_err) << "ftime: " << ftime 
          << " rftime: " << rftime 
          << " diff: " << diff; 
          */
      }
      DL1_dlassert(diff < 0.002, 
                   "inconsistent floating point time values", Mline);
      // read data value
      iss.clear();
      iss.str(Mline.substr(7,6));
      iss >> this->Mvalue;
      this->Mcounts=Tuint(nearbyint(Mvalue/DataLine::gain));
    } // DataLine::evalline()

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