taper()

ts::tapers::FourPoint ts::tapers::OffsetVariableTaper::taper	(	const double &	offset,
		const double &	T0,
		const double &	T
	)		const

return specific four point taper

Parameters

offset	create specific taper for receiver at offset
T0	time of first sample with respect to source time
T	duration of time series to be tapered

Returns

four point taper for this offset and time series

Definition at line 133 of file ovtaper.cc.

References Mt1, Mt2, Mt3, Mt4, Mvalid, t1(), t2(), t3(), t4(), ts::tapers::ovtaper::Picks::time(), and TSXX_assert.

Referenced by main().

    {
      TSXX_assert(Mvalid,
                  "OffsetVariableTaper::taper: "
                  "taper is undefined");
      // calculate times in units of the duration of the time series
      double t1=(Mt1.time(offset)-T0)/T;
      double t2=(Mt2.time(offset)-T0)/T;
      double t3=(Mt3.time(offset)-T0)/T;
      double t4=(Mt4.time(offset)-T0)/T;
      // keep values in bounds of time series
      t1 = t1 >=  0. ? t1 : 0.; 
      t2 = t2 >=  1.e-6 ? t2 : 1.e-6; 
      t3 = t3 <=  .99999 ? t3 : .99999; 
      t4 = t4 <=  1. ? t4 : 1.; 
      // initialize taper
      ts::tapers::FourPoint fpt(t1, t2, t3, t4);
      return(fpt);
    } // ts::tapers::FourPoint OffsetVariableTaper::taper(...)

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