[1325] | 1 | //#--------------------------------------------------------------------------- |
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| 2 | //# PKSreader.cc: Class to read Parkes multibeam data. |
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| 3 | //#--------------------------------------------------------------------------- |
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[1427] | 4 | //# Copyright (C) 2000-2008 |
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[1325] | 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 AIPS++ 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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[1427] | 28 | //# $Id: PKSreader.cc,v 19.6 2008-06-26 01:54:08 cal103 Exp $ |
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[1325] | 29 | //#--------------------------------------------------------------------------- |
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| 30 | //# Original: 2000/08/23, Mark Calabretta, ATNF |
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| 31 | //#--------------------------------------------------------------------------- |
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| 32 | |
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| 33 | #include <atnf/PKSIO/PKSreader.h> |
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| 34 | #include <atnf/PKSIO/PKSFITSreader.h> |
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| 35 | |
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| 36 | #ifndef NOPKSMS |
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| 37 | #include <atnf/PKSIO/PKSMS2reader.h> |
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| 38 | #endif |
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| 39 | |
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| 40 | #include <casa/IO/RegularFileIO.h> |
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| 41 | #include <casa/OS/File.h> |
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| 42 | |
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| 43 | |
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| 44 | //--------------------------------------------------------------- getPKSreader |
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| 45 | |
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| 46 | // Return an appropriate PKSreader for a Parkes Multibeam dataset. |
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| 47 | |
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| 48 | PKSreader* getPKSreader( |
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| 49 | const String name, |
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| 50 | const Int retry, |
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| 51 | const Int interpolate, |
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| 52 | String &format, |
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| 53 | Vector<Bool> &beams, |
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| 54 | Vector<Bool> &IFs, |
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| 55 | Vector<uInt> &nChan, |
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| 56 | Vector<uInt> &nPol, |
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| 57 | Vector<Bool> &haveXPol, |
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| 58 | Bool &haveBase, |
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| 59 | Bool &haveSpectra) |
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| 60 | { |
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| 61 | // Check accessibility of the input. |
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| 62 | File inFile(name); |
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| 63 | if (!inFile.exists()) { |
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| 64 | format = "DATASET NOT FOUND"; |
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| 65 | return 0; |
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| 66 | } |
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| 67 | |
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| 68 | if (!inFile.isReadable()) { |
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| 69 | format = "DATASET UNREADABLE"; |
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| 70 | return 0; |
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| 71 | } |
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| 72 | |
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| 73 | // Determine the type of input. |
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| 74 | PKSreader *reader = 0; |
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| 75 | if (inFile.isRegular()) { |
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| 76 | // Is it MBFITS or SDFITS? |
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[1427] | 77 | if (strstr(name.chars(), ".sdfits")) { |
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| 78 | // Looks like SDFITS, possibly gzip'd. |
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[1325] | 79 | format = "SDFITS"; |
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| 80 | reader = new PKSFITSreader("SDFITS"); |
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| 81 | |
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| 82 | } else { |
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[1427] | 83 | RegularFileIO file(name); |
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| 84 | char buf[32]; |
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| 85 | file.read(30, buf, False); |
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| 86 | buf[30] = '\0'; |
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| 87 | if (String(buf) == "SIMPLE = T") { |
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| 88 | // Looks like SDFITS. |
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| 89 | format = "SDFITS"; |
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| 90 | reader = new PKSFITSreader("SDFITS"); |
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| 91 | |
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| 92 | } else { |
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| 93 | // Assume it's MBFITS. |
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| 94 | format = "MBFITS"; |
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| 95 | reader = new PKSFITSreader("MBFITS", retry, interpolate); |
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| 96 | } |
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[1325] | 97 | } |
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| 98 | |
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| 99 | } else if (inFile.isDirectory()) { |
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| 100 | if (File(name + "/DATA_DESCRIPTION").exists()) { |
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| 101 | // MS version 2. |
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| 102 | #ifdef NOPKSMS |
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| 103 | format = "MS2 INPUT FORMAT IS NO LONGER SUPPORTED"; |
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| 104 | #else |
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| 105 | format = "MS2"; |
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| 106 | reader = new PKSMS2reader(); |
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| 107 | #endif |
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| 108 | } |
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| 109 | |
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| 110 | } else { |
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| 111 | format = "UNRECOGNIZED INPUT FORMAT"; |
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| 112 | } |
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| 113 | |
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| 114 | |
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| 115 | // Try to open it. |
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| 116 | if (reader) { |
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| 117 | if (reader->open(name, beams, IFs, nChan, nPol, haveXPol, haveBase, |
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| 118 | haveSpectra)) { |
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| 119 | format += " OPEN ERROR"; |
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| 120 | delete reader; |
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| 121 | } else { |
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| 122 | return reader; |
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| 123 | } |
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| 124 | } |
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| 125 | |
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| 126 | return 0; |
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| 127 | } |
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| 128 | |
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| 129 | |
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| 130 | //--------------------------------------------------------------- getPKSreader |
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| 131 | |
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| 132 | // Search a list of directories for a Parkes Multibeam dataset and return an |
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| 133 | // appropriate PKSreader for it. |
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| 134 | |
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| 135 | PKSreader* getPKSreader( |
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| 136 | const String name, |
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| 137 | const Vector<String> directories, |
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| 138 | const Int retry, |
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| 139 | const Int interpolate, |
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| 140 | Int &iDir, |
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| 141 | String &format, |
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| 142 | Vector<Bool> &beams, |
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| 143 | Vector<Bool> &IFs, |
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| 144 | Vector<uInt> &nChan, |
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| 145 | Vector<uInt> &nPol, |
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| 146 | Vector<Bool> &haveXPol, |
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| 147 | Bool &haveBase, |
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| 148 | Bool &haveSpectra) |
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| 149 | { |
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| 150 | Int nDir = directories.nelements(); |
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| 151 | for (iDir = 0; iDir < nDir; iDir++) { |
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| 152 | String inName = directories(iDir) + "/" + name; |
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| 153 | PKSreader *reader = getPKSreader(inName, retry, interpolate, format, |
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| 154 | beams, IFs, nChan, nPol, haveXPol, |
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| 155 | haveBase, haveSpectra); |
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| 156 | if (reader != 0) { |
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| 157 | return reader; |
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| 158 | } |
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| 159 | } |
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| 160 | |
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| 161 | iDir = -1; |
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| 162 | return 0; |
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| 163 | } |
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[1427] | 164 | |
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| 165 | |
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| 166 | //-------------------------------------------------------- PKSFITSreader::read |
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| 167 | |
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| 168 | // Read the next data record. |
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| 169 | |
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| 170 | Int PKSreader::read( |
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| 171 | Int &scanNo, |
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| 172 | Int &cycleNo, |
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| 173 | Double &mjd, |
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| 174 | Double &interval, |
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| 175 | String &fieldName, |
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| 176 | String &srcName, |
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| 177 | Vector<Double> &srcDir, |
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| 178 | Vector<Double> &srcPM, |
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| 179 | Double &srcVel, |
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| 180 | String &obsType, |
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| 181 | Int &IFno, |
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| 182 | Double &refFreq, |
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| 183 | Double &bandwidth, |
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| 184 | Double &freqInc, |
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| 185 | Double &restFreq, |
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| 186 | Vector<Float> &tcal, |
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| 187 | String &tcalTime, |
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| 188 | Float &azimuth, |
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| 189 | Float &elevation, |
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| 190 | Float &parAngle, |
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| 191 | Float &focusAxi, |
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| 192 | Float &focusTan, |
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| 193 | Float &focusRot, |
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| 194 | Float &temperature, |
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| 195 | Float &pressure, |
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| 196 | Float &humidity, |
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| 197 | Float &windSpeed, |
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| 198 | Float &windAz, |
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| 199 | Int &refBeam, |
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| 200 | Int &beamNo, |
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| 201 | Vector<Double> &direction, |
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| 202 | Vector<Double> &scanRate, |
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| 203 | Vector<Float> &tsys, |
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| 204 | Vector<Float> &sigma, |
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| 205 | Vector<Float> &calFctr, |
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| 206 | Matrix<Float> &baseLin, |
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| 207 | Matrix<Float> &baseSub, |
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| 208 | Matrix<Float> &spectra, |
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| 209 | Matrix<uChar> &flagged, |
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| 210 | Complex &xCalFctr, |
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| 211 | Vector<Complex> &xPol) |
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| 212 | { |
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| 213 | Int status; |
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| 214 | MBrecord MBrec; |
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| 215 | |
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| 216 | if ((status = read(MBrec))) { |
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| 217 | if (status != -1) { |
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| 218 | status = 1; |
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| 219 | } |
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| 220 | |
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| 221 | return status; |
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| 222 | } |
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| 223 | |
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| 224 | scanNo = MBrec.scanNo; |
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| 225 | cycleNo = MBrec.cycleNo; |
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| 226 | mjd = MBrec.mjd; |
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| 227 | interval = MBrec.interval; |
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| 228 | fieldName = MBrec.fieldName; |
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| 229 | srcName = MBrec.srcName; |
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| 230 | srcDir = MBrec.srcDir; |
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| 231 | srcPM = MBrec.srcPM; |
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| 232 | srcVel = MBrec.srcVel; |
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| 233 | obsType = MBrec.obsType; |
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| 234 | IFno = MBrec.IFno; |
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| 235 | refFreq = MBrec.refFreq; |
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| 236 | bandwidth = MBrec.bandwidth; |
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| 237 | freqInc = MBrec.freqInc; |
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| 238 | restFreq = MBrec.restFreq; |
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| 239 | tcal = MBrec.tcal; |
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| 240 | tcalTime = MBrec.tcalTime; |
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| 241 | azimuth = MBrec.azimuth; |
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| 242 | elevation = MBrec.elevation; |
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| 243 | parAngle = MBrec.parAngle; |
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| 244 | focusAxi = MBrec.focusAxi; |
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| 245 | focusTan = MBrec.focusTan; |
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| 246 | focusRot = MBrec.focusRot; |
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| 247 | temperature = MBrec.temperature; |
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| 248 | pressure = MBrec.pressure; |
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| 249 | humidity = MBrec.humidity; |
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| 250 | windSpeed = MBrec.windSpeed; |
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| 251 | windAz = MBrec.windAz; |
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| 252 | refBeam = MBrec.refBeam; |
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| 253 | beamNo = MBrec.beamNo; |
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| 254 | direction = MBrec.direction; |
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| 255 | scanRate = MBrec.scanRate; |
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| 256 | tsys = MBrec.tsys; |
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| 257 | sigma = MBrec.sigma; |
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| 258 | calFctr = MBrec.calFctr; |
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| 259 | baseLin = MBrec.baseLin; |
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| 260 | baseSub = MBrec.baseSub; |
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| 261 | spectra = MBrec.spectra; |
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| 262 | flagged = MBrec.flagged; |
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| 263 | xCalFctr = MBrec.xCalFctr; |
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| 264 | xPol = MBrec.xPol; |
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| 265 | |
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| 266 | return 0; |
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| 267 | } |
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