[1325] | 1 | //#--------------------------------------------------------------------------- |
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| 2 | //# MBFITSreader.h: ATNF single-dish RPFITS reader. |
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| 3 | //#--------------------------------------------------------------------------- |
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[1720] | 4 | //# livedata - processing pipeline for single-dish, multibeam spectral data. |
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| 5 | //# Copyright (C) 2000-2009, Australia Telescope National Facility, CSIRO |
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[1325] | 6 | //# |
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[1720] | 7 | //# This file is part of livedata. |
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[1325] | 8 | //# |
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[1720] | 9 | //# livedata is free software: you can redistribute it and/or modify it under |
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| 10 | //# the terms of the GNU General Public License as published by the Free |
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| 11 | //# Software Foundation, either version 3 of the License, or (at your option) |
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| 12 | //# any later version. |
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| 13 | //# |
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| 14 | //# livedata is distributed in the hope that it will be useful, but WITHOUT |
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[1325] | 15 | //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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[1720] | 16 | //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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| 17 | //# more details. |
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[1325] | 18 | //# |
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[1720] | 19 | //# You should have received a copy of the GNU General Public License along |
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| 20 | //# with livedata. If not, see <http://www.gnu.org/licenses/>. |
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[1325] | 21 | //# |
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[1720] | 22 | //# Correspondence concerning livedata may be directed to: |
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| 23 | //# Internet email: mcalabre@atnf.csiro.au |
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| 24 | //# Postal address: Dr. Mark Calabretta |
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| 25 | //# Australia Telescope National Facility, CSIRO |
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| 26 | //# PO Box 76 |
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| 27 | //# Epping NSW 1710 |
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[1325] | 28 | //# AUSTRALIA |
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| 29 | //# |
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[1720] | 30 | //# http://www.atnf.csiro.au/computing/software/livedata.html |
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| 31 | //# $Id: MBFITSreader.h,v 19.23 2009-09-29 07:33:38 cal103 Exp $ |
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[1325] | 32 | //#--------------------------------------------------------------------------- |
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| 33 | //# The MBFITSreader class reads single dish RPFITS files (such as Parkes |
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| 34 | //# Multibeam MBFITS files). |
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| 35 | //# |
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| 36 | //# Original: 2000/07/28 Mark Calabretta |
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| 37 | //#--------------------------------------------------------------------------- |
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| 38 | |
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| 39 | #ifndef ATNF_MBFITSREADER_H |
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| 40 | #define ATNF_MBFITSREADER_H |
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| 41 | |
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| 42 | #include <atnf/PKSIO/FITSreader.h> |
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[1452] | 43 | #include <atnf/PKSIO/MBrecord.h> |
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[1325] | 44 | |
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[1452] | 45 | using namespace std; |
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| 46 | |
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[1325] | 47 | // <summary> |
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| 48 | // ATNF single-dish RPFITS reader. |
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| 49 | // </summary> |
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| 50 | |
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| 51 | class MBFITSreader : public FITSreader |
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| 52 | { |
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| 53 | public: |
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| 54 | // Default constructor; position interpolation codes are: |
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| 55 | // 0: no interpolation, |
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| 56 | // 1: correct interpolation, |
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| 57 | // 2: pksmbfits interpolation. |
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| 58 | MBFITSreader(const int retry = 0, const int interpolate = 1); |
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| 59 | |
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| 60 | // Destructor. |
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| 61 | virtual ~MBFITSreader(); |
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| 62 | |
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| 63 | // Open the RPFITS file for reading. |
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| 64 | virtual int open( |
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| 65 | char *rpname, |
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| 66 | int &nBeam, |
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| 67 | int* &beams, |
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| 68 | int &nIF, |
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| 69 | int* &IFs, |
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| 70 | int* &nChan, |
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| 71 | int* &nPol, |
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| 72 | int* &haveXPol, |
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| 73 | int &haveBase, |
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| 74 | int &haveSpectra, |
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| 75 | int &extraSysCal); |
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| 76 | |
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| 77 | // Get parameters describing the data. |
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| 78 | virtual int getHeader( |
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| 79 | char observer[32], |
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| 80 | char project[32], |
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| 81 | char telescope[32], |
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| 82 | double antPos[3], |
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| 83 | char obsType[32], |
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[1399] | 84 | char bunit[32], |
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[1325] | 85 | float &equinox, |
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| 86 | char radecsys[32], |
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| 87 | char dopplerFrame[32], |
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| 88 | char datobs[32], |
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| 89 | double &utc, |
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| 90 | double &refFreq, |
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| 91 | double &bandwidth); |
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| 92 | |
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| 93 | // Get frequency parameters for each IF. |
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| 94 | virtual int getFreqInfo( |
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| 95 | int &nIF, |
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| 96 | double* &startFreq, |
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| 97 | double* &endFreq); |
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| 98 | |
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| 99 | // Find the range of the data selected in time and position. |
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| 100 | virtual int findRange( |
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| 101 | int &nRow, |
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| 102 | int &nSel, |
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| 103 | char dateSpan[2][32], |
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| 104 | double utcSpan[2], |
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| 105 | double* &positions); |
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| 106 | |
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| 107 | // Read the next data record. |
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[1452] | 108 | virtual int read(MBrecord &record); |
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[1325] | 109 | |
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| 110 | // Close the RPFITS file. |
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| 111 | virtual void close(void); |
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| 112 | |
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| 113 | private: |
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| 114 | // RPFITSIN subroutine arguments. |
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| 115 | int cBaseline, cFlag, cBin, cIFno, cSrcNo; |
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| 116 | float cUTC, cU, cV, cW, *cVis, *cWgt; |
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| 117 | |
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[1452] | 118 | char cDateObs[12]; |
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[1325] | 119 | int *cBeamSel, *cChanOff, cFirst, *cIFSel, cInterp, cIntTime, cMBopen, |
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[1635] | 120 | cMopra, cNBeamSel, cNBin, cRetry, cSimulIF, cSUpos, *cXpolOff; |
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[1325] | 121 | |
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| 122 | // The data has to be bufferred to allow positions to be interpolated. |
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| 123 | int cEOF, cEOS, cFlushBin, cFlushIF, cFlushing; |
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| 124 | double *cPosUTC; |
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[1452] | 125 | MBrecord *cBuffer; |
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[1325] | 126 | |
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[1452] | 127 | // Scan and cycle number bookkeeping. |
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[1325] | 128 | int cCycleNo, cScanNo; |
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| 129 | double cPrevUTC; |
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| 130 | |
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| 131 | // Read the next data record from the RPFITS file. |
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| 132 | int rpget(int syscalonly, int &EOS); |
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[1452] | 133 | int rpfitsin(int &jstat); |
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| 134 | |
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| 135 | // Check and, if necessary, repair a position timestamp. |
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| 136 | int cCode5, cNRate; |
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| 137 | double cAvRate[2]; |
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| 138 | int fixw(const char *datobs, int cycleNo, int beamNo, double avRate[2], |
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| 139 | double thisRA, double thisDec, double thisUTC, |
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| 140 | double nextRA, double nextDec, float &nextUTC); |
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| 141 | |
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| 142 | // Subtract two UTCs (s). |
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| 143 | double utcDiff(double utc1, double utc2); |
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| 144 | |
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| 145 | // Compute and apply the scan rate corrected for grid convergence. |
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| 146 | double cRA0, cDec0; |
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| 147 | void scanRate(double ra0, double dec0, |
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| 148 | double ra1, double dec1, |
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| 149 | double ra2, double dec2, double dt, |
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| 150 | double &raRate, double &decRate); |
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| 151 | void applyRate(double ra0, double dec0, |
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| 152 | double ra1, double dec1, |
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| 153 | double raRate, double decRate, double dt, |
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| 154 | double &ra2, double &dec2); |
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| 155 | void eulerx(double lng0, double lat0, double phi0, double theta, |
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| 156 | double phi, double &lng1, double &lat1); |
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[1325] | 157 | }; |
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| 158 | |
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| 159 | #endif |
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