HoughMapTest.c

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/*
*  Copyright (C) 2007 Badri Krishnan, Jolien Creighton, Alicia Sintes Olives
*
*  This program is free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License, or
*  (at your option) any later version.
*
*  This program is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with with program; see the file COPYING. If not, write to the
*  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
*  MA  02110-1301  USA
*/
 
/*-----------------------------------------------------------------------
 *
 * File Name: TestHoughMap.c
 *
 * Authors: Sintes, A.M., Krishnan, B.
 *
 *
 * History:   Created by Sintes June 25, 2001
 *            Modified     August 6, 2001
 *            Modified by Badri Krishnan Feb 2003
 *-----------------------------------------------------------------------
 */
 
/*
 * 1.  An author and Id block
 */
 
/**
 * \author Sintes, A. M., Krishnan, B.
 * \file
 * \ingroup HoughMap_h
 * \brief Tests the construction of Hough maps.
 *
 * ### Program TestHoughMap.c ###
 *
 *
 * ### Usage ###
 *
 * \code
 * TestHoughMap [-d debuglevel] [-o outfile] [-f f0] [-p alpha delta]
 * \endcode
 *
 * ### Description ###
 *
 * \%TO BE CHANGED
 *
 * Similar to the previous ones, this program generates a patch grid, calculates
 * the parameters needed for
 * building a \c lut, and  builds the \c lut. Then, given a peak-gram
 * constructs a \c phmd at a
 * certain frequency (shifted from the frequency at which the \c lut was built).
 * The sky patch is set at the south pole,
 * no spin-down parameters are assumed for the demodulation and
 * every third  peak in the spectrum is selected. The peak-gram frequency interval
 * is large enough to ensure compatibility with the \c lut and the frequency of
 * the \c phmd.
 *
 * Moreover, this program initializes a Hough map \c ht
 * and the Hough
 * map derivative space \c hd, adds one \c phmd into the Hough map
 * derivative \c hd,
 * constructs the total Hough map \c ht by integrating the \c hd,
 * and outputs the \c ht into a file.
 *
 * By default, running this program with no arguments simply tests the subroutines,
 * producing an output file called <tt>OutHough.asc</tt>.  All default parameters are set from
 * <tt>\#define</tt>d constants.
 *
 * The <b>-d</b> option sets the debug level to the specified value
 * \c debuglevel.  The <b>-o</b> flag tells the program to print the partial Hough map
 * derivative  to the specified data file \c outfile.  The
 * <b>-f</b> option sets the intrinsic frequency \c f0 at which build the <tt>lut</tt>.
 * The <b>-p</b> option sets the velocity orientation of the detector
 * \c alpha, \c delta (in radians).
 *
 * ### Uses ###
 *
 * \code
 * LALHOUGHCalcParamPLUT()
 * LALHOUGHConstructPLUT()
 * LALHOUGHPeak2PHMD()
 * LALHOUGHInitializeHT()
 * LALHOUGHInitializeHD()
 * LALHOUGHAddPHMD2HD()
 * LALHOUGHIntegrHD2HT()
 * LALPrintError()
 * LALMalloc()
 * LALFree()
 * LALCheckMemoryLeaks()
 * \endcode
 *
 */
 
#include <lal/HoughMap.h>
 
/**\name Error Codes */ /** @{ */
#define TESTHOUGHMAPC_ENORM 0
#define TESTHOUGHMAPC_ESUB  1
#define TESTHOUGHMAPC_EARG  2
#define TESTHOUGHMAPC_EBAD  3
#define TESTHOUGHMAPC_EFILE 4
 
#define TESTHOUGHMAPC_MSGENORM "Normal exit"
#define TESTHOUGHMAPC_MSGESUB  "Subroutine failed"
#define TESTHOUGHMAPC_MSGEARG  "Error parsing arguments"
#define TESTHOUGHMAPC_MSGEBAD  "Bad argument values"
#define TESTHOUGHMAPC_MSGEFILE "Could not create output file"
/** @} */
 
 
/** \cond DONT_DOXYGEN */
 
/* Default parameters. */
 
 
#define F0 500.0          /*  frequency to build the LUT. */
#define TCOH 100000.0     /*  time baseline of coherent integration. */
#define DF    (1./TCOH)   /*  frequency  resolution. */
#define ALPHA 0.0
#define DELTA 0.0
#define MWR 1             /*.minWidthRatio */
#define FILEOUT "OutHough.asc"      /* file output */
#define PIXELFACTOR 2
/* Usage format string. */
 
#define USAGE "Usage: %s [-d debuglevel] [-o outfile] [-f f0] [-p alpha delta] [-s patchSizeX patchSizeY]\n"
 
/*********************************************************************/
/* Macros for printing errors & testing subroutines (from Creighton) */
/*********************************************************************/
 
#define ERROR( code, msg, statement )                                \
do {                                                                 \
  if ( lalDebugLevel & LALERROR )                                    \
    XLALPrintError( "Error[0] %d: program %s, file %s, line %d, %s\n" \
                   "        %s %s\n", (code), *argv, __FILE__,       \
              __LINE__, "$Id$", statement ? statement :  \
                   "", (msg) );                                      \
} while (0)
 
#define INFO( statement )                                            \
do {                                                                 \
  if ( lalDebugLevel & LALINFO )                                     \
    XLALPrintError( "Info[0]: program %s, file %s, line %d, %s\n"     \
                   "        %s\n", *argv, __FILE__, __LINE__,        \
              "$Id$", (statement) );                     \
} while (0)
 
#define SUB( func, statusptr )                                       \
do {                                                                 \
  if ( (func), (statusptr)->statusCode ) {                           \
    ERROR( TESTHOUGHMAPC_ESUB, TESTHOUGHMAPC_MSGESUB,      \
           "Function call \"" #func "\" failed:" );                  \
    return TESTHOUGHMAPC_ESUB;                                  \
  }                                                                  \
} while (0)
/******************************************************************/
 
/* >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< */
/* vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv------------------------------------ */
int main( int argc, char *argv[] )
{
 
  static LALStatus       status;  /* LALStatus pointer */
  static HOUGHptfLUT     lut;     /* the Look Up Table */
  static HOUGHPatchGrid  patch;   /* Patch description */
  static HOUGHParamPLUT  parLut;  /* parameters needed to build lut  */
  static HOUGHResolutionPar parRes;
  static HOUGHDemodPar   parDem;  /* demodulation parameters */
  static HOUGHSizePar    parSize;
  static HOUGHPeakGram   pg;
  static HOUGHphmd       phmd; /* the partial Hough map derivative */
  static HOUGHMapDeriv   hd;   /* the Hough map derivative */
  static HOUGHMapTotal   ht;   /* the total Hough map */
  /* ------------------------------------------------------- */
 
  UINT2  maxNBins, maxNBorders;
 
  INT8   f0Bin;           /* freq. bin to construct LUT */
  UINT2  xSide, ySide;
 
  CHAR *fname = NULL;               /* The output filename */
  FILE *fp = NULL;                  /* Output file */
 
  INT4 arg;                         /* Argument counter */
  INT4 i, j;                      /* Index counter, etc */
  UINT4 k;
 
  REAL8 f0, alpha, delta, veloMod;
  REAL8 patchSizeX, patchSizeY;
 
  /************************************************************/
  /* Set up the default parameters. */
  /************************************************************/
 
  ht.map = NULL;
  hd.map = NULL;
 
  f0 =  F0;
  f0Bin = F0 * TCOH;
 
  parRes.f0Bin =  f0Bin;
  parRes.deltaF = DF;
  parRes.patchSkySizeX  = patchSizeX = 1.0 / ( TCOH * F0 * VEPI );
  parRes.patchSkySizeY  = patchSizeY = 1.0 / ( TCOH * F0 * VEPI );
  parRes.pixelFactor = PIXELFACTOR;
  parRes.pixErr = PIXERR;
  parRes.linErr = LINERR;
  parRes.vTotC = VTOT;
 
  parDem.deltaF = DF;
  parDem.skyPatch.alpha = 0.0;
  parDem.skyPatch.delta = -LAL_PI_2;
 
  alpha = ALPHA;
  delta = DELTA;
  veloMod = VTOT;
 
 
  /********************************************************/
  /* Parse argument list.  i stores the current position. */
  /********************************************************/
  arg = 1;
  while ( arg < argc ) {
    /* Parse debuglevel option. */
    if ( !strcmp( argv[arg], "-d" ) ) {
      if ( argc > arg + 1 ) {
        arg++;
      } else {
        ERROR( TESTHOUGHMAPC_EARG, TESTHOUGHMAPC_MSGEARG, 0 );
        XLALPrintError( USAGE, *argv );
        return TESTHOUGHMAPC_EARG;
      }
    }
    /* Parse output file option. */
    else if ( !strcmp( argv[arg], "-o" ) ) {
      if ( argc > arg + 1 ) {
        arg++;
        fname = argv[arg++];
      } else {
        ERROR( TESTHOUGHMAPC_EARG, TESTHOUGHMAPC_MSGEARG, 0 );
        XLALPrintError( USAGE, *argv );
        return TESTHOUGHMAPC_EARG;
      }
    }
    /* Parse frequency option. */
    else if ( !strcmp( argv[arg], "-f" ) ) {
      if ( argc > arg + 1 ) {
        arg++;
        f0 = atof( argv[arg++] );
        f0Bin = f0 * TCOH;
        parRes.f0Bin =  f0Bin;
      } else {
        ERROR( TESTHOUGHMAPC_EARG, TESTHOUGHMAPC_MSGEARG, 0 );
        XLALPrintError( USAGE, *argv );
        return TESTHOUGHMAPC_EARG;
      }
    }
    /* Parse velocity position options. */
    else if ( !strcmp( argv[arg], "-p" ) ) {
      if ( argc > arg + 2 ) {
        arg++;
        alpha = atof( argv[arg++] );
        delta = atof( argv[arg++] );
      } else {
        ERROR( TESTHOUGHMAPC_EARG, TESTHOUGHMAPC_MSGEARG, 0 );
        XLALPrintError( USAGE, *argv );
        return TESTHOUGHMAPC_EARG;
      }
    }
    /* Parse patch size option. */
    else if ( !strcmp( argv[arg], "-s" ) ) {
      if ( argc > arg + 2 ) {
        arg++;
        parRes.patchSkySizeX = patchSizeX = atof( argv[arg++] );
        parRes.patchSkySizeY = patchSizeY = atof( argv[arg++] );
      } else {
        ERROR( TESTHOUGHMAPC_EARG, TESTHOUGHMAPC_MSGEARG, 0 );
        XLALPrintError( USAGE, *argv );
        return TESTHOUGHMAPC_EARG;
      }
    }
    /* Unrecognized option. */
    else {
      ERROR( TESTHOUGHMAPC_EARG, TESTHOUGHMAPC_MSGEARG, 0 );
      XLALPrintError( USAGE, *argv );
      return TESTHOUGHMAPC_EARG;
    }
  } /* End of argument parsing loop. */
  /******************************************************************/
 
  if ( f0 < 0 ) {
    ERROR( TESTHOUGHMAPC_EBAD, TESTHOUGHMAPC_MSGEBAD, "freq<0:" );
    XLALPrintError( USAGE, *argv );
    return TESTHOUGHMAPC_EBAD;
  }
 
 
  /******************************************************************/
  /* create patch grid */
  /******************************************************************/
  SUB( LALHOUGHComputeSizePar( &status, &parSize, &parRes ),  &status );
 
  xSide = parSize.xSide;
  ySide = parSize.ySide;
  maxNBins = parSize.maxNBins;
  maxNBorders = parSize.maxNBorders;
 
  /* allocate memory based on xSide and ySide */
  patch.xSide = xSide;
  patch.ySide = ySide;
 
  patch.xCoor = NULL;
  patch.yCoor = NULL;
  patch.xCoor = ( REAL8 * )LALMalloc( xSide * sizeof( REAL8 ) );
  patch.yCoor = ( REAL8 * )LALMalloc( ySide * sizeof( REAL8 ) );
 
 
  SUB( LALHOUGHFillPatchGrid( &status, &patch, &parSize ), &status );
 
 
  /******************************************************************/
  /* memory allocation again and settings */
  /******************************************************************/
 
 
  lut.maxNBins = maxNBins;
  lut.maxNBorders = maxNBorders;
  lut.border =
    ( HOUGHBorder * )LALMalloc( maxNBorders * sizeof( HOUGHBorder ) );
  lut.bin =
    ( HOUGHBin2Border * )LALMalloc( maxNBins * sizeof( HOUGHBin2Border ) );
 
  phmd.maxNBorders = maxNBorders;
  phmd.leftBorderP =
    ( HOUGHBorder ** )LALMalloc( maxNBorders * sizeof( HOUGHBorder * ) );
  phmd.rightBorderP =
    ( HOUGHBorder ** )LALMalloc( maxNBorders * sizeof( HOUGHBorder * ) );
 
 
  ht.xSide = xSide;
  ht.ySide = ySide;
  ht.map   = ( HoughTT * )LALMalloc( xSide * ySide * sizeof( HoughTT ) );
 
  hd.xSide = xSide;
  hd.ySide = ySide;
  hd.map   = ( HoughDT * )LALMalloc( ( xSide + 1 ) * ySide * sizeof( HoughDT ) );
 
  phmd.ySide = ySide;
  phmd.firstColumn = NULL;
  phmd.firstColumn = ( UCHAR * )LALMalloc( ySide * sizeof( UCHAR ) );
 
 
  for ( i = 0; i < maxNBorders; ++i ) {
    lut.border[i].ySide = ySide;
    lut.border[i].xPixel = ( COORType * )LALMalloc( ySide * sizeof( COORType ) );
  }
 
 
  /******************************************************************/
  /* Case: no spins, patch at south pole */
  /************************************************************/
 
  parDem.veloC.x = veloMod * cos( delta ) * cos( alpha );
  parDem.veloC.y = veloMod * cos( delta ) * sin( alpha );
  parDem.veloC.z = veloMod * sin( delta );
 
  parDem.positC.x = 0.0;
  parDem.positC.y = 0.0;
  parDem.positC.z = 0.0;
  parDem.timeDiff = 0.0;
  parDem.spin.length = 0;
  parDem.spin.data = NULL;
 
 
  /******************************************************************/
  /* Frequency-bin  of the Partial Hough Map*/
  /******************************************************************/
 
  phmd.fBin = f0Bin + 21; /* a bit shifted from the LUT */
 
  /******************************************************************/
  /* A Peakgram for testing                                         */
  /******************************************************************/
  pg.deltaF = DF;
  pg.fBinIni = ( phmd.fBin ) - maxNBins;
  pg.fBinFin = ( phmd.fBin ) + 5 * maxNBins;
  pg.length = maxNBins; /* could be much smaller */
  pg.peak = NULL;
  pg.peak = ( INT4 * )LALMalloc( ( pg.length ) * sizeof( INT4 ) );
 
  for ( k = 0; k < pg.length; ++k ) {
    pg.peak[k] = 3 * k;   /* a test */
  }
 
 
  /******************************************************************/
  /* calculate parameters needed for buiding the LUT */
  /******************************************************************/
  SUB( LALHOUGHCalcParamPLUT( &status, &parLut, &parSize, &parDem ),  &status );
 
  /******************************************************************/
  /* build the LUT */
  /******************************************************************/
  SUB( LALHOUGHConstructPLUT( &status, &lut, &patch, &parLut ), &status );
 
  /******************************************************************/
  /* build a PHMD from a peakgram and LUT  */
  /******************************************************************/
 
  SUB( LALHOUGHPeak2PHMD( &status, &phmd, &lut, &pg ), &status );
 
  /******************************************************************/
  /* initializing the Hough map space */
  /******************************************************************/
 
  SUB( LALHOUGHInitializeHT( &status, &ht, &patch ), &status );
 
  /******************************************************************/
  /* initializing the Hough map derivative space */
  /******************************************************************/
 
  SUB( LALHOUGHInitializeHD( &status, &hd ), &status );
 
  /******************************************************************/
  /* sum a partial-HMD into a HD */
  /******************************************************************/
  SUB( LALHOUGHAddPHMD2HD( &status, &hd, &phmd ), &status );
 
  /******************************************************************/
  /* construction of a total Hough map: integration of a HM-deriv.  */
  /******************************************************************/
 
  SUB( LALHOUGHIntegrHD2HT( &status, &ht, &hd ), &status );
 
  /******************************************************************/
  /* printing the results into a particular file                    */
  /* if the -o option was given, or into  FILEOUT                   */
  /******************************************************************/
 
  if ( fname ) {
    fp = fopen( fname, "w" );
  } else {
    fp = fopen( FILEOUT, "w" );
  }
 
  if ( !fp ) {
    ERROR( TESTHOUGHMAPC_EFILE, TESTHOUGHMAPC_MSGEFILE, 0 );
    return TESTHOUGHMAPC_EFILE;
  }
 
 
  for ( j = ySide - 1; j >= 0; --j ) {
    for ( i = 0; i < xSide; ++i ) {
      fprintf( fp, " %f", ht.map[j * xSide + i] );
      fflush( fp );
    }
    fprintf( fp, " \n" );
    fflush( fp );
  }
 
  fclose( fp );
 
 
  /******************************************************************/
  /* Free memory and exit */
  /******************************************************************/
 
  LALFree( pg.peak );
 
  for ( i = 0; i < maxNBorders; ++i ) {
    LALFree( lut.border[i].xPixel );
  }
 
  LALFree( lut.border );
  LALFree( lut.bin );
 
  LALFree( phmd.leftBorderP );
  LALFree( phmd.rightBorderP );
  LALFree( phmd.firstColumn );
 
  LALFree( ht.map );
  LALFree( hd.map );
 
  LALFree( patch.xCoor );
  LALFree( patch.yCoor );
 
  LALCheckMemoryLeaks();
 
  INFO( TESTHOUGHMAPC_MSGENORM );
  return TESTHOUGHMAPC_ENORM;
}
 
/* >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< */
 
/** \endcond */