[1325] | 1 | //#--------------------------------------------------------------------------- |
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| 2 | //# MBFITSreader.h: ATNF single-dish RPFITS reader. |
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| 3 | //#--------------------------------------------------------------------------- |
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| 4 | //# Copyright (C) 2000-2007 |
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| 5 | //# Mark Calabretta, ATNF |
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| 6 | //# |
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| 7 | //# This library is free software; you can redistribute it and/or modify it |
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| 8 | //# under the terms of the GNU Library General Public License as published by |
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| 9 | //# the Free Software Foundation; either version 2 of the License, or (at your |
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| 10 | //# option) any later version. |
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| 11 | //# |
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| 12 | //# This library is distributed in the hope that it will be useful, but WITHOUT |
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| 13 | //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 14 | //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
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| 15 | //# License for more details. |
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| 16 | //# |
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| 17 | //# You should have received a copy of the GNU Library General Public License |
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| 18 | //# along with this library; if not, write to the Free Software Foundation, |
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| 19 | //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. |
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| 20 | //# |
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| 21 | //# Correspondence concerning this software should be addressed as follows: |
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| 22 | //# Internet email: mcalabre@atnf.csiro.au. |
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| 23 | //# Postal address: Dr. Mark Calabretta, |
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| 24 | //# Australia Telescope National Facility, |
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| 25 | //# P.O. Box 76, |
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| 26 | //# Epping, NSW, 2121, |
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| 27 | //# AUSTRALIA |
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| 28 | //# |
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[1452] | 29 | //# $Id: MBFITSreader.h,v 19.21 2008-11-17 06:33:10 cal103 Exp $ |
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[1325] | 30 | //#--------------------------------------------------------------------------- |
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| 31 | //# The MBFITSreader class reads single dish RPFITS files (such as Parkes |
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| 32 | //# Multibeam MBFITS files). |
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| 33 | //# |
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| 34 | //# Original: 2000/07/28 Mark Calabretta |
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| 35 | //#--------------------------------------------------------------------------- |
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| 36 | |
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| 37 | #ifndef ATNF_MBFITSREADER_H |
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| 38 | #define ATNF_MBFITSREADER_H |
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| 39 | |
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| 40 | #include <atnf/PKSIO/FITSreader.h> |
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[1452] | 41 | #include <atnf/PKSIO/MBrecord.h> |
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[1325] | 42 | |
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[1452] | 43 | using namespace std; |
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| 44 | |
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[1325] | 45 | // <summary> |
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| 46 | // ATNF single-dish RPFITS reader. |
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| 47 | // </summary> |
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| 48 | |
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| 49 | class MBFITSreader : public FITSreader |
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| 50 | { |
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| 51 | public: |
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| 52 | // Default constructor; position interpolation codes are: |
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| 53 | // 0: no interpolation, |
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| 54 | // 1: correct interpolation, |
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| 55 | // 2: pksmbfits interpolation. |
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| 56 | MBFITSreader(const int retry = 0, const int interpolate = 1); |
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| 57 | |
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| 58 | // Destructor. |
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| 59 | virtual ~MBFITSreader(); |
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| 60 | |
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| 61 | // Open the RPFITS file for reading. |
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| 62 | virtual int open( |
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| 63 | char *rpname, |
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| 64 | int &nBeam, |
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| 65 | int* &beams, |
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| 66 | int &nIF, |
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| 67 | int* &IFs, |
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| 68 | int* &nChan, |
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| 69 | int* &nPol, |
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| 70 | int* &haveXPol, |
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| 71 | int &haveBase, |
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| 72 | int &haveSpectra, |
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| 73 | int &extraSysCal); |
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| 74 | |
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| 75 | // Get parameters describing the data. |
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| 76 | virtual int getHeader( |
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| 77 | char observer[32], |
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| 78 | char project[32], |
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| 79 | char telescope[32], |
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| 80 | double antPos[3], |
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| 81 | char obsType[32], |
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[1399] | 82 | char bunit[32], |
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[1325] | 83 | float &equinox, |
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| 84 | char radecsys[32], |
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| 85 | char dopplerFrame[32], |
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| 86 | char datobs[32], |
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| 87 | double &utc, |
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| 88 | double &refFreq, |
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| 89 | double &bandwidth); |
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| 90 | |
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| 91 | // Get frequency parameters for each IF. |
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| 92 | virtual int getFreqInfo( |
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| 93 | int &nIF, |
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| 94 | double* &startFreq, |
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| 95 | double* &endFreq); |
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| 96 | |
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| 97 | // Find the range of the data selected in time and position. |
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| 98 | virtual int findRange( |
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| 99 | int &nRow, |
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| 100 | int &nSel, |
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| 101 | char dateSpan[2][32], |
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| 102 | double utcSpan[2], |
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| 103 | double* &positions); |
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| 104 | |
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| 105 | // Read the next data record. |
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[1452] | 106 | virtual int read(MBrecord &record); |
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[1325] | 107 | |
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| 108 | // Close the RPFITS file. |
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| 109 | virtual void close(void); |
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| 110 | |
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| 111 | private: |
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| 112 | // RPFITSIN subroutine arguments. |
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| 113 | int cBaseline, cFlag, cBin, cIFno, cSrcNo; |
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| 114 | float cUTC, cU, cV, cW, *cVis, *cWgt; |
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| 115 | |
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[1452] | 116 | char cDateObs[12]; |
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[1325] | 117 | int *cBeamSel, *cChanOff, cFirst, *cIFSel, cInterp, cIntTime, cMBopen, |
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[1427] | 118 | cMopra, cNBeamSel, cNBin, cRetry, cSUpos, *cXpolOff; |
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[1325] | 119 | |
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| 120 | // The data has to be bufferred to allow positions to be interpolated. |
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| 121 | int cEOF, cEOS, cFlushBin, cFlushIF, cFlushing; |
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| 122 | double *cPosUTC; |
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[1452] | 123 | MBrecord *cBuffer; |
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[1325] | 124 | |
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[1452] | 125 | // Scan and cycle number bookkeeping. |
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[1325] | 126 | int cCycleNo, cScanNo; |
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| 127 | double cPrevUTC; |
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| 128 | |
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| 129 | // Read the next data record from the RPFITS file. |
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| 130 | int rpget(int syscalonly, int &EOS); |
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[1452] | 131 | int rpfitsin(int &jstat); |
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| 132 | |
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| 133 | // Check and, if necessary, repair a position timestamp. |
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| 134 | int cCode5, cNRate; |
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| 135 | double cAvRate[2]; |
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| 136 | int fixw(const char *datobs, int cycleNo, int beamNo, double avRate[2], |
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| 137 | double thisRA, double thisDec, double thisUTC, |
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| 138 | double nextRA, double nextDec, float &nextUTC); |
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| 139 | |
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| 140 | // Subtract two UTCs (s). |
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| 141 | double utcDiff(double utc1, double utc2); |
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| 142 | |
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| 143 | // Compute and apply the scan rate corrected for grid convergence. |
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| 144 | double cRA0, cDec0; |
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| 145 | void scanRate(double ra0, double dec0, |
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| 146 | double ra1, double dec1, |
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| 147 | double ra2, double dec2, double dt, |
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| 148 | double &raRate, double &decRate); |
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| 149 | void applyRate(double ra0, double dec0, |
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| 150 | double ra1, double dec1, |
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| 151 | double raRate, double decRate, double dt, |
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| 152 | double &ra2, double &dec2); |
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| 153 | void eulerx(double lng0, double lat0, double phi0, double theta, |
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| 154 | double phi, double &lng1, double &lat1); |
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[1325] | 155 | }; |
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| 156 | |
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| 157 | #endif |
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