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 | //# 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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6 | //# |
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7 | //# This file is part of livedata. |
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8 | //# |
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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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15 | //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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16 | //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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17 | //# more details. |
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18 | //# |
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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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21 | //# |
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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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28 | //# AUSTRALIA |
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29 | //# |
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30 | //# http://www.atnf.csiro.au/computing/software/livedata.html |
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31 | //# $Id: SDFITSreader.h,v 19.22 2009-09-29 07:33:39 cal103 Exp $ |
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32 | //#--------------------------------------------------------------------------- |
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33 | //# The SDFITSreader class reads single dish FITS files such as those written |
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34 | //# by SDFITSwriter containing Parkes Multibeam data. |
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35 | //# |
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36 | //# Original: 2000/08/09, Mark Calabretta, ATNF |
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37 | //#--------------------------------------------------------------------------- |
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38 | |
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39 | #ifndef ATNF_SDFITSREADER_H |
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40 | #define ATNF_SDFITSREADER_H |
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41 | |
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42 | #include <atnf/PKSIO/FITSreader.h> |
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43 | #include <atnf/PKSIO/MBrecord.h> |
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44 | |
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45 | #include <casa/Logging/LogIO.h> |
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46 | |
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47 | #include <fitsio.h> |
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48 | |
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49 | using namespace std; |
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50 | using namespace casacore; |
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51 | |
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52 | // <summary> |
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53 | // ATNF class for SDFITS input using CFITSIO. |
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54 | // </summary> |
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55 | |
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56 | class SDFITSreader : public FITSreader |
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57 | { |
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58 | public: |
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59 | // Default constructor. |
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60 | SDFITSreader(); |
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61 | |
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62 | // Destructor. |
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63 | virtual ~SDFITSreader(); |
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64 | |
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65 | // Open an SDFITS file for reading. |
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66 | virtual int open( |
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67 | char* sdname, |
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68 | int &nBeam, |
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69 | int* &beams, |
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70 | int &nIF, |
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71 | int* &IFs, |
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72 | int* &nChan, |
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73 | int* &nPol, |
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74 | int* &haveXPol, |
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75 | int &haveBase, |
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76 | int &haveSpectra, |
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77 | int &extraSysCal); |
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78 | |
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79 | // Get parameters describing the data. |
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80 | virtual int getHeader( |
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81 | char observer[32], |
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82 | char project[32], |
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83 | char telescope[32], |
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84 | double antPos[3], |
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85 | char obsMode[32], |
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86 | char bunit[32], |
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87 | float &equinox, |
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88 | char radecsys[32], |
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89 | char dopplerFrame[32], |
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90 | char datobs[32], |
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91 | double &utc, |
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92 | double &refFreq, |
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93 | double &bandwidth); |
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94 | |
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95 | // Get frequency parameters for each IF. |
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96 | virtual int getFreqInfo( |
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97 | int &nIF, |
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98 | double* &startFreq, |
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99 | double* &endFreq); |
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100 | |
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101 | // Find the range of the data selected in time and position. |
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102 | virtual int findRange( |
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103 | int &nRow, |
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104 | int &nSel, |
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105 | char dateSpan[2][32], |
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106 | double utcSpan[2], |
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107 | double* &positions); |
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108 | |
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109 | // Read the next data record. |
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110 | virtual int read(MBrecord &record); |
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111 | |
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112 | // Close the SDFITS file. |
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113 | virtual void close(void); |
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114 | |
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115 | private: |
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116 | int cCycleNo, cExtraSysCal, cNAxes, cStatus; |
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117 | long cBeamAxis, cDecAxis, cFreqAxis, cNAxis[5], cNAxisTime, cNRow, |
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118 | cRaAxis, cRow, cStokesAxis, cTimeAxis, cTimeIdx; |
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119 | double cLastUTC; |
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120 | fitsfile *cSDptr; |
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121 | class FITSparm *cData; |
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122 | |
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123 | // These are to differentiate 0-, and 1-relative beam and IF numbering. |
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124 | int cBeam_1rel, cIF_1rel; |
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125 | |
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126 | // for GBT |
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127 | int *cPols ; |
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128 | |
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129 | enum {SCAN, CYCLE, DATE_OBS, TIME, EXPOSURE, OBJECT, OBJ_RA, OBJ_DEC, |
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130 | RESTFRQ, OBSMODE, BEAM, IF, FqRefVal, FqDelt, FqRefPix, RA, DEC, |
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131 | TimeRefVal, TimeDelt, TimeRefPix, SCANRATE, TSYS, CALFCTR, XCALFCTR, |
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132 | BASELIN, BASESUB, DATA, FLAGGED, DATAXED, XPOLDATA, REFBEAM, TCAL, |
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133 | TCALTIME, AZIMUTH, ELEVATIO, PARANGLE, FOCUSAXI, FOCUSTAN, FOCUSROT, |
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134 | TAMBIENT, PRESSURE, HUMIDITY, WINDSPEE, WINDDIRE, STOKES, SIG, CAL, |
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135 | VFRAME, RVSYS, VELDEF, NDATA}; |
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136 | |
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137 | // Message handling. |
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138 | void log(LogOrigin origin, LogIO::Command cmd, const char *msg = 0x0); |
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139 | |
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140 | void findData(int iData, char *name, int type); |
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141 | void findCol(char *name, int *colnum); |
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142 | int readDim(int iData, long iRow, int *naxis, long naxes[]); |
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143 | int readParm(char *name, int type, void *value); |
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144 | int readData(char *name, int type, long iRow, void *value); |
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145 | int readData(int iData, long iRow, void *value); |
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146 | int readCol(int iData, void *value); |
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147 | int readTime(long iRow, int iPix, char *datobs, double &utc); |
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148 | |
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149 | // These are for ALFA data: "BDFITS" or "CIMAFITS". Statics are required |
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150 | // for CIMAFITS v2.0 because CAL ON/OFF data is split into separate files. |
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151 | static int sInit, sReset; |
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152 | static int (*sALFAcalNon)[2], (*sALFAcalNoff)[2]; |
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153 | static float (*sALFAcal)[2], (*sALFAcalOn)[2], (*sALFAcalOff)[2]; |
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154 | |
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155 | int cALFA, cALFA_BD, cALFA_CIMA, cALFAscan, cScanNo; |
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156 | float cALFAacc; |
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157 | int alfaCal(short iBeam, short iIF, short iPol); |
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158 | float alfaGain(float zd); |
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159 | |
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160 | // These are for GBT data. |
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161 | int cGBT, cFirstScanNo; |
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162 | double cGLastUTC[4] ; |
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163 | int cGLastScan[4] ; |
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164 | int cGCycleNo[4] ; |
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165 | }; |
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166 | |
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167 | #endif |
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