| 1 | //#---------------------------------------------------------------------------
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| 2 | //# SDFITSreader.h: ATNF CFITSIO interface class for SDFITS input.
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| 3 | //#---------------------------------------------------------------------------
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| 4 | //# Copyright (C) 2000-2009
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| 5 | //# Associated Universities, Inc. Washington DC, USA.
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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: aips2-request@nrao.edu.
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| 23 | //# Postal address: AIPS++ Project Office
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| 24 | //# National Radio Astronomy Observatory
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| 25 | //# 520 Edgemont Road
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| 26 | //# Charlottesville, VA 22903-2475 USA
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| 27 | //#
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| 28 | //# $Id: SDFITSreader.h,v 19.21 2009-03-18 07:11:51 cal103 Exp $
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| 29 | //#---------------------------------------------------------------------------
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| 30 | //# The SDFITSreader class reads single dish FITS files such as those written
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| 31 | //# by SDFITSwriter containing Parkes Multibeam data.
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| 32 | //#
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| 33 | //# Original: 2000/08/09, Mark Calabretta, ATNF
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| 34 | //#---------------------------------------------------------------------------
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| 35 |
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| 36 | #ifndef ATNF_SDFITSREADER_H
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| 37 | #define ATNF_SDFITSREADER_H
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| 38 |
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| 39 | #include <atnf/PKSIO/FITSreader.h>
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| 40 | #include <atnf/PKSIO/MBrecord.h>
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| 41 |
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| 42 | #include <fitsio.h>
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| 43 |
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| 44 | using namespace std;
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| 45 |
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| 46 | // <summary>
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| 47 | // ATNF class for SDFITS input using CFITSIO.
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| 48 | // </summary>
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| 49 |
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| 50 | class SDFITSreader : public FITSreader
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| 51 | {
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| 52 | public:
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| 53 | // Default constructor.
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| 54 | SDFITSreader();
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| 55 |
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| 56 | // Destructor.
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| 57 | virtual ~SDFITSreader();
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| 58 |
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| 59 | // Open an SDFITS file for reading.
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| 60 | virtual int open(
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| 61 | char* sdname,
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| 62 | int &nBeam,
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| 63 | int* &beams,
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| 64 | int &nIF,
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| 65 | int* &IFs,
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| 66 | int* &nChan,
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| 67 | int* &nPol,
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| 68 | int* &haveXPol,
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| 69 | int &haveBase,
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| 70 | int &haveSpectra,
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| 71 | int &extraSysCal);
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| 72 |
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| 73 | // Get parameters describing the data.
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| 74 | virtual int getHeader(
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| 75 | char observer[32],
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| 76 | char project[32],
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| 77 | char telescope[32],
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| 78 | double antPos[3],
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| 79 | char obsMode[32],
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| 80 | char bunit[32],
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| 81 | float &equinox,
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| 82 | char radecsys[32],
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| 83 | char dopplerFrame[32],
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| 84 | char datobs[32],
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| 85 | double &utc,
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| 86 | double &refFreq,
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| 87 | double &bandwidth);
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| 88 |
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| 89 | // Get frequency parameters for each IF.
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| 90 | virtual int getFreqInfo(
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| 91 | int &nIF,
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| 92 | double* &startFreq,
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| 93 | double* &endFreq);
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| 94 |
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| 95 | // Find the range of the data selected in time and position.
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| 96 | virtual int findRange(
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| 97 | int &nRow,
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| 98 | int &nSel,
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| 99 | char dateSpan[2][32],
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| 100 | double utcSpan[2],
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| 101 | double* &positions);
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| 102 |
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| 103 | // Read the next data record.
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| 104 | virtual int read(MBrecord &record);
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| 105 |
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| 106 | // Close the SDFITS file.
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| 107 | virtual void close(void);
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| 108 |
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| 109 | private:
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| 110 | int cCycleNo, cExtraSysCal, cNAxes, cStatus;
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| 111 | long cBeamAxis, cDecAxis, cFreqAxis, cNAxis[5], cNAxisTime, cNRow,
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| 112 | cRaAxis, cRow, cStokesAxis, cTimeAxis, cTimeIdx;
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| 113 | double cLastUTC;
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| 114 | fitsfile *cSDptr;
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| 115 | class FITSparm *cData;
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| 116 |
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| 117 | // These are to differentiate 0-, and 1-relative beam and IF numbering.
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| 118 | int cBeam_1rel, cIF_1rel;
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| 119 |
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| 120 | enum {SCAN, CYCLE, DATE_OBS, TIME, EXPOSURE, OBJECT, OBJ_RA, OBJ_DEC,
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| 121 | RESTFRQ, OBSMODE, BEAM, IF, FqRefVal, FqDelt, FqRefPix, RA, DEC,
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| 122 | TimeRefVal, TimeDelt, TimeRefPix, SCANRATE, TSYS, CALFCTR, XCALFCTR,
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| 123 | BASELIN, BASESUB, DATA, FLAGGED, DATAXED, XPOLDATA, REFBEAM, TCAL,
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| 124 | TCALTIME, AZIMUTH, ELEVATIO, PARANGLE, FOCUSAXI, FOCUSTAN, FOCUSROT,
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| 125 | TAMBIENT, PRESSURE, HUMIDITY, WINDSPEE, WINDDIRE, NDATA};
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| 126 |
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| 127 | // Message handling.
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| 128 | virtual void logMsg(const char *msg = 0x0);
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| 129 |
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| 130 | void findData(int iData, char *name, int type);
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| 131 | void findCol(char *name, int *colnum);
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| 132 | int readDim(int iData, long iRow, int *naxis, long naxes[]);
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| 133 | int readParm(char *name, int type, void *value);
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| 134 | int readData(char *name, int type, long iRow, void *value);
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| 135 | int readData(int iData, long iRow, void *value);
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| 136 | int readCol(int iData, void *value);
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| 137 | int readTime(long iRow, int iPix, char *datobs, double &utc);
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| 138 |
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| 139 | // These are for ALFA data: "BDFITS" or "CIMAFITS". Statics are required
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| 140 | // for CIMAFITS v2.0 because CAL ON/OFF data is split into separate files.
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| 141 | static int sInit, sReset;
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| 142 | static int (*sALFAcalNon)[2], (*sALFAcalNoff)[2];
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| 143 | static float (*sALFAcal)[2], (*sALFAcalOn)[2], (*sALFAcalOff)[2];
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| 144 |
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| 145 | int cALFA, cALFA_BD, cALFA_CIMA, cALFAscan, cScanNo;
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| 146 | float cALFAacc;
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| 147 | int alfaCal(short iBeam, short iIF, short iPol);
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| 148 | float alfaGain(float zd);
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| 149 |
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| 150 | // These are for GBT data.
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| 151 | int cGBT, cFirstScanNo;
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| 152 | };
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| 153 |
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| 154 | #endif
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