filter_spbal.h

/* ======== IGeoS ===== Distribition full ===== IGeoS =========
**                                                                         
** filter_spbal.h: Created by 'AMSS-developer' on Fri Jan 12 19:49:03 2018
**                                                                         
** Product      : IGeoS - Integrated Geoscience Software
**                                                                         
** Description  : System for seismic, well log, and potential-field data analysis
**                                                                         
** =================== Limited License: ===================================
** 
** This software is provided free under the following terms and conditions:
** 
** 1. Permission to use, copy, and modify this software 
** for non-commercial purposes without fee is hereby granted, provided  
** that this copyright notice, the warranty disclaimer, and this
** permission notice appear in all copies.
** 
** 2. Distribution of this software or any part of it "bundled" in with
** any product is considered to be a 'commercial purpose'.
** 
** 3. Any new or adapted code developed to operate as a part of this
** software shall be contributed to the authors and distributed under
** the same license.
** 
** ================== Warranty Disclaimer: ================================
** 
** This software is provided "as is", with no support and without
** obligation on the part of the author to assist in its use, correction,
** modification, or enhancement. No guarantees or warranties,
** either express or implied, and regarding the accuracy, safety, or
** fitness for any particular purpose are provided by any contributor
** to this software package.
** 
** ======== IGeoS ===== Distribition full ===== IGeoS ========= */


struct Filter_SpBal : public Filter_Polygon
{
  Filter_SpBal ( Filter *pred, int _type, boolean _zero_phase ) :
        Filter_Polygon ( pred, _type, _zero_phase )
        {}

  HEADER_PARAM          f_window, f_start, f_end;

  void proc ( FILTER *FIL, TRACE *t );  // filtering method

private:

  boolean inv_amplitude ( FILTER *FIL, TRACE *t,
                        COMPLEX *spectr, double factor, 
                        COMPLEX *result, int nf );
        // Build the inverse of the amplitude spectrum scaled by onfft 
        // in real parts of 'result'.
        // Return OK or FAIL, if bad AGC window
};

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