1 | //#--------------------------------------------------------------------------- |
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2 | //# SDContainer.cc: A container class for single dish integrations |
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3 | //#--------------------------------------------------------------------------- |
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4 | //# Copyright (C) 2004 |
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5 | //# ATNF |
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6 | //# |
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7 | //# This program is free software; you can redistribute it and/or modify it |
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8 | //# under the terms of the GNU General Public License as published by the Free |
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9 | //# Software Foundation; either version 2 of the License, or (at your option) |
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10 | //# any later version. |
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11 | //# |
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12 | //# This program is distributed in the hope that it will be useful, but |
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13 | //# WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | //# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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15 | //# Public License for more details. |
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16 | //# |
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17 | //# You should have received a copy of the GNU General Public License along |
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18 | //# with this program; if not, write to the Free Software Foundation, Inc., |
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19 | //# 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: Malte.Marquarding@csiro.au |
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23 | //# Postal address: Malte Marquarding, |
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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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29 | //# $Id: |
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30 | //#--------------------------------------------------------------------------- |
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31 | |
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32 | #include <casa/aips.h> |
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33 | #include <casa/iostream.h> |
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34 | #include <casa/iomanip.h> |
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35 | #include <casa/Exceptions.h> |
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36 | #include <casa/Utilities/Assert.h> |
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37 | #include <tables/Tables/Table.h> |
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38 | #include <casa/Arrays/IPosition.h> |
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39 | #include <casa/Arrays/Matrix.h> |
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40 | #include <casa/Arrays/VectorIter.h> |
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41 | #include <casa/Arrays/ArrayAccessor.h> |
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42 | #include <casa/Arrays/ArrayMath.h> |
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43 | #include <casa/BasicMath/Math.h> |
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44 | #include <casa/Quanta/MVTime.h> |
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45 | |
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46 | |
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47 | |
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48 | #include "SDDefs.h" |
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49 | #include "SDContainer.h" |
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50 | |
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51 | using namespace casa; |
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52 | using namespace asap; |
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53 | |
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54 | void SDHeader::print() const { |
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55 | MVTime mvt(this->utc); |
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56 | mvt.setFormat(MVTime::YMD); |
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57 | cout << "Observer: " << this->observer << endl |
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58 | << "Project: " << this->project << endl |
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59 | << "Obstype: " << this->obstype << endl |
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60 | << "Antenna: " << this->antennaname << endl |
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61 | << "Ant. Position: " << this->antennaposition << endl |
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62 | << "Equinox: " << this->equinox << endl |
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63 | << "Freq. ref.: " << this->freqref << endl |
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64 | << "Ref. frequency: " << this->reffreq << endl |
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65 | << "Bandwidth: " << this->bandwidth << endl |
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66 | << "Time (utc): " |
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67 | << mvt |
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68 | << endl; |
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69 | //setprecision(10) << this->utc << endl; |
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70 | } |
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71 | |
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72 | |
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73 | SDContainer::SDContainer(uInt nBeam, uInt nIF, uInt nPol, uInt nChan) |
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74 | : nBeam_(nBeam), |
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75 | nIF_(nIF), |
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76 | nPol_(nPol), |
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77 | nChan_(nChan), |
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78 | spectrum_(IPosition(4,nBeam,nIF,nPol,nChan)), |
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79 | flags_(IPosition(4,nBeam,nIF,nPol,nChan)), |
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80 | tsys_(IPosition(4,nBeam,nIF,nPol,nChan)), |
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81 | freqidx_(nIF), |
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82 | restfreqidx_(nIF), |
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83 | direction_(IPosition(2,nBeam,2)) { |
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84 | uChar x = 0; |
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85 | flags_ = ~x; |
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86 | tcal.resize(2); |
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87 | } |
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88 | |
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89 | SDContainer::SDContainer(IPosition shp) |
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90 | : nBeam_(shp(0)), |
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91 | nIF_(shp(1)), |
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92 | nPol_(shp(2)), |
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93 | nChan_(shp(3)), |
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94 | spectrum_(shp), |
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95 | flags_(shp), |
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96 | tsys_(shp), |
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97 | freqidx_(shp(1)), |
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98 | restfreqidx_(shp(1)) { |
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99 | IPosition ip(2,shp(0),2); |
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100 | direction_.resize(ip); |
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101 | uChar x = 0; |
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102 | flags_ = ~x; |
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103 | tcal.resize(2); |
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104 | } |
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105 | |
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106 | SDContainer::~SDContainer() { |
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107 | } |
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108 | |
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109 | Bool SDContainer::resize(IPosition shp) { |
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110 | nBeam_ = shp(0); |
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111 | nIF_ = shp(1); |
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112 | nPol_ = shp(2); |
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113 | nChan_ = shp(3); |
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114 | spectrum_.resize(shp); |
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115 | flags_.resize(shp); |
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116 | tsys_.resize(shp); |
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117 | freqidx_.resize(shp(1)); |
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118 | restfreqidx_.resize(shp(1)); |
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119 | IPosition ip(2,shp(0),2); |
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120 | direction_.resize(ip); |
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121 | } |
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122 | |
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123 | Bool SDContainer::putSpectrum(const Array<Float>& spec) { |
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124 | spectrum_ = spec; |
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125 | } |
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126 | Bool SDContainer::putFlags(const Array<uChar>& flag) { |
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127 | flags_ = flag; |
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128 | } |
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129 | Bool SDContainer::putTsys(const Array<Float>& tsys) { |
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130 | tsys_ = tsys; |
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131 | } |
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132 | |
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133 | Bool SDContainer::setSpectrum(const Matrix<Float>& spec, |
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134 | const Vector<Complex>& cSpec, |
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135 | uInt whichBeam, uInt whichIF) |
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136 | // |
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137 | // spec is [nChan,nPol] |
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138 | // cspec is [nChan] |
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139 | // spectrum_ is [,,,nChan] |
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140 | // |
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141 | // nPOl_ = 4 - xx, yy, real(xy), imag(xy) |
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142 | // |
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143 | { |
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144 | AlwaysAssert(nPol_==4,AipsError); |
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145 | |
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146 | // Get slice and check dim |
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147 | |
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148 | Bool tSys = False; |
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149 | Bool xPol = True; |
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150 | IPosition start, end; |
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151 | setSlice (start, end, spec.shape(), spectrum_.shape(), |
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152 | whichBeam, whichIF, tSys, xPol); |
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153 | |
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154 | // Get a reference to the Pol/Chan slice we are interested in |
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155 | |
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156 | Array<Float> subArr = spectrum_(start,end); |
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157 | |
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158 | // Iterate through pol-chan plane and fill |
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159 | |
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160 | ReadOnlyVectorIterator<Float> inIt(spec,0); |
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161 | VectorIterator<Float> outIt(subArr,asap::ChanAxis); |
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162 | while (!outIt.pastEnd()) { |
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163 | const IPosition& pos = outIt.pos(); |
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164 | if (pos(asap::PolAxis)<2) { |
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165 | outIt.vector() = inIt.vector(); |
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166 | inIt.next(); |
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167 | } else if (pos(asap::PolAxis)==2) { |
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168 | outIt.vector() = real(cSpec); |
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169 | } else if (pos(asap::PolAxis)==3) { |
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170 | outIt.vector() = imag(cSpec); |
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171 | } |
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172 | // |
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173 | outIt.next(); |
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174 | } |
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175 | |
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176 | // unset flags for this spectrum, they might be set again by the |
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177 | // setFlags method |
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178 | |
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179 | Array<uChar> arr(flags_(start,end)); |
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180 | arr = uChar(0); |
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181 | // |
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182 | return True; |
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183 | } |
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184 | |
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185 | |
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186 | Bool SDContainer::setSpectrum(const Matrix<Float>& spec, |
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187 | uInt whichBeam, uInt whichIF) |
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188 | // |
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189 | // spec is [nChan,nPol] |
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190 | // spectrum_ is [,,,nChan] |
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191 | // How annoying. |
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192 | // nPol==2 |
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193 | { |
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194 | |
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195 | // Get slice and check dim |
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196 | |
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197 | IPosition start, end; |
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198 | setSlice (start, end, spec.shape(), spectrum_.shape(), |
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199 | whichBeam, whichIF, False, False); |
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200 | |
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201 | // Get a reference to the Pol/Chan slice we are interested in |
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202 | |
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203 | Array<Float> subArr = spectrum_(start,end); |
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204 | |
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205 | // Iterate through it and fill |
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206 | |
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207 | ReadOnlyVectorIterator<Float> inIt(spec,0); |
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208 | VectorIterator<Float> outIt(subArr,asap::ChanAxis); |
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209 | while (!outIt.pastEnd()) { |
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210 | outIt.vector() = inIt.vector(); |
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211 | // |
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212 | inIt.next(); |
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213 | outIt.next(); |
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214 | } |
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215 | |
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216 | // unset flags for this spectrum, they might be set again by the |
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217 | // setFlags method |
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218 | |
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219 | Array<uChar> arr(flags_(start,end)); |
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220 | arr = uChar(0); |
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221 | // |
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222 | return True; |
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223 | } |
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224 | |
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225 | |
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226 | |
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227 | |
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228 | Bool SDContainer::setFlags (const Matrix<uChar>& flags, |
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229 | uInt whichBeam, uInt whichIF, |
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230 | Bool hasXPol) |
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231 | // |
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232 | // flags is [nChan,nPol] |
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233 | // flags_ is [,,,nChan] |
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234 | // How annoying. |
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235 | // there are no separate flags for XY so make |
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236 | // them up from X and Y |
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237 | // |
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238 | { |
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239 | if (hasXPol) AlwaysAssert(nPol_==4,AipsError); |
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240 | |
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241 | // Get slice and check dim |
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242 | |
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243 | IPosition start, end; |
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244 | setSlice (start, end, flags.shape(), flags_.shape(), |
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245 | whichBeam, whichIF, False, hasXPol); |
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246 | |
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247 | // Get a reference to the Pol/Chan slice we are interested in |
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248 | |
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249 | Array<uChar> subArr = flags_(start,end); |
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250 | |
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251 | // Iterate through pol/chan plane and fill |
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252 | |
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253 | ReadOnlyVectorIterator<uChar> inIt(flags,0); |
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254 | VectorIterator<uChar> outIt(subArr,asap::ChanAxis); |
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255 | // |
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256 | Vector<uChar> maskPol0; |
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257 | Vector<uChar> maskPol1; |
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258 | Vector<uChar> maskPol01; |
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259 | while (!outIt.pastEnd()) { |
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260 | const IPosition& pos = outIt.pos(); |
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261 | if (pos(asap::PolAxis)<2) { |
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262 | outIt.vector() = inIt.vector(); |
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263 | // |
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264 | if (hasXPol) { |
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265 | if (pos(asap::PolAxis)==0) { |
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266 | maskPol0 = inIt.vector(); |
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267 | } else if (pos(asap::PolAxis)==1) { |
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268 | maskPol1 = inIt.vector(); |
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269 | // |
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270 | maskPol01.resize(maskPol0.nelements()); |
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271 | for (uInt i=0; i<maskPol01.nelements(); i++) maskPol01[i] = maskPol0[i]&maskPol1[i]; |
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272 | } |
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273 | } |
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274 | // |
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275 | inIt.next(); |
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276 | } else if (pos(asap::PolAxis)==2) { |
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277 | outIt.vector() = maskPol01; |
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278 | } else if (pos(asap::PolAxis)==3) { |
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279 | outIt.vector() = maskPol01; |
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280 | } |
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281 | // |
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282 | outIt.next(); |
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283 | } |
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284 | // |
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285 | return True; |
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286 | } |
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287 | |
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288 | |
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289 | Bool SDContainer::setTsys(const Vector<Float>& tsys, |
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290 | uInt whichBeam, uInt whichIF, |
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291 | Bool hasXpol) |
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292 | // |
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293 | // Tsys does not depend upon channel but is replicated |
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294 | // for simplicity of use. |
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295 | // There is no Tsys measurement for the cross polarization |
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296 | // so I have set TSys for XY to sqrt(Tx*Ty) |
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297 | // |
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298 | { |
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299 | |
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300 | // Get slice and check dim |
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301 | |
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302 | IPosition start, end; |
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303 | setSlice (start, end, tsys.shape(), tsys_.shape(), |
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304 | whichBeam, whichIF, True, hasXpol); |
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305 | |
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306 | // Get a reference to the Pol/Chan slice we are interested in |
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307 | |
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308 | Array<Float> subArr = tsys_(start,end); |
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309 | |
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310 | // Iterate through it and fill |
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311 | |
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312 | VectorIterator<Float> outIt(subArr,asap::ChanAxis); |
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313 | uInt i=0; |
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314 | while (!outIt.pastEnd()) { |
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315 | const IPosition& pos = outIt.pos(); |
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316 | // |
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317 | if (pos(asap::PolAxis)<2) { |
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318 | outIt.vector() = tsys(i++); |
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319 | } else { |
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320 | outIt.vector() = sqrt(tsys[0]*tsys[1]); |
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321 | } |
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322 | // |
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323 | outIt.next(); |
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324 | } |
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325 | } |
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326 | |
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327 | Array<Float> SDContainer::getSpectrum(uInt whichBeam, uInt whichIF) const |
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328 | { |
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329 | Matrix<Float> spectra(nChan_, nPol_); |
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330 | |
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331 | // Beam. |
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332 | ArrayAccessor<Float, Axis<asap::BeamAxis> > i0(spectrum_); |
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333 | i0.reset(i0.begin(whichBeam)); |
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334 | |
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335 | // IF. |
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336 | ArrayAccessor<Float, Axis<asap::IFAxis> > i1(i0); |
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337 | i1.reset(i1.begin(whichIF)); |
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338 | |
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339 | // Polarization. |
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340 | ArrayAccessor<Float, Axis<asap::PolAxis> > i2(i1); |
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341 | ArrayAccessor<Float, Axis<asap::IFAxis> > o1(spectra); |
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342 | |
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343 | while (i2 != i2.end()) { |
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344 | // Channel. |
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345 | ArrayAccessor<Float, Axis<asap::ChanAxis> > i3(i2); |
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346 | ArrayAccessor<Float, Axis<asap::BeamAxis> > o0(o1); |
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347 | |
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348 | while (i3 != i3.end()) { |
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349 | *o0 = *i3; |
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350 | |
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351 | i3++; |
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352 | o0++; |
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353 | } |
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354 | |
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355 | i2++; |
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356 | o1++; |
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357 | } |
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358 | |
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359 | return spectra.copy(); |
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360 | } |
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361 | |
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362 | |
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363 | Array<uChar> SDContainer::getFlags(uInt whichBeam, uInt whichIF) const |
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364 | { |
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365 | Matrix<uChar> flagtra(nChan_, nPol_); |
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366 | |
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367 | // Beam. |
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368 | ArrayAccessor<uChar, Axis<asap::BeamAxis> > i0(flags_); |
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369 | i0.reset(i0.begin(whichBeam)); |
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370 | |
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371 | // IF. |
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372 | ArrayAccessor<uChar, Axis<asap::IFAxis> > i1(i0); |
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373 | i1.reset(i1.begin(whichIF)); |
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374 | |
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375 | // Polarization. |
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376 | ArrayAccessor<uChar, Axis<asap::PolAxis> > i2(i1); |
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377 | ArrayAccessor<uChar, Axis<asap::IFAxis> > o1(flagtra); |
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378 | |
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379 | while (i2 != i2.end()) { |
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380 | // Channel. |
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381 | ArrayAccessor<uChar, Axis<asap::ChanAxis> > i3(i2); |
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382 | ArrayAccessor<uChar, Axis<asap::BeamAxis> > o0(o1); |
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383 | |
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384 | while (i3 != i3.end()) { |
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385 | *o0 = *i3; |
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386 | |
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387 | i3++; |
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388 | o0++; |
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389 | } |
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390 | |
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391 | i2++; |
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392 | o1++; |
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393 | } |
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394 | |
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395 | return flagtra.copy(); |
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396 | } |
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397 | |
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398 | Array<Float> SDContainer::getTsys(uInt whichBeam, uInt whichIF) const |
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399 | { |
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400 | Vector<Float> tsys(nPol_); |
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401 | |
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402 | // Beam. |
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403 | ArrayAccessor<Float, Axis<asap::BeamAxis> > i0(tsys_); |
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404 | i0.reset(i0.begin(whichBeam)); |
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405 | |
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406 | // IF. |
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407 | ArrayAccessor<Float, Axis<asap::IFAxis> > i1(i0); |
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408 | i1.reset(i1.begin(whichIF)); |
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409 | |
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410 | // Channel. |
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411 | ArrayAccessor<Float, Axis<asap::ChanAxis> > i3(i1); |
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412 | |
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413 | // Polarization. |
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414 | ArrayAccessor<Float, Axis<asap::PolAxis> > i2(i3); |
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415 | ArrayAccessor<Float, Axis<asap::BeamAxis> > o0(tsys); |
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416 | |
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417 | while (i2 != i2.end()) { |
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418 | *o0 = *i2; |
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419 | |
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420 | i2++; |
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421 | o0++; |
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422 | } |
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423 | return tsys.copy(); |
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424 | } |
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425 | |
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426 | Array<Double> SDContainer::getDirection(uInt whichBeam) const { |
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427 | Vector<Double> direct(2); |
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428 | ArrayAccessor<Double, Axis<asap::BeamAxis> > i0(direction_); |
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429 | i0.reset(i0.begin(whichBeam)); |
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430 | ArrayAccessor<Double, Axis<asap::BeamAxis> > o0(direct); |
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431 | ArrayAccessor<Double, Axis<asap::IFAxis> > i1(i0); |
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432 | while (i1 != i1.end()) { |
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433 | *o0 = *i1; |
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434 | i1++; |
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435 | o0++; |
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436 | } |
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437 | return direct.copy(); |
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438 | } |
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439 | |
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440 | |
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441 | Bool SDContainer::setFrequencyMap(uInt freqID, uInt whichIF) { |
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442 | freqidx_[whichIF] = freqID; |
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443 | return True; |
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444 | } |
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445 | |
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446 | Bool SDContainer::putFreqMap(const Vector<uInt>& freqs) { |
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447 | freqidx_.resize(); |
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448 | freqidx_ = freqs; |
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449 | return True; |
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450 | } |
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451 | |
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452 | Bool SDContainer::setRestFrequencyMap(uInt freqID, uInt whichIF) { |
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453 | restfreqidx_[whichIF] = freqID; |
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454 | return True; |
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455 | } |
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456 | |
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457 | Bool SDContainer::putRestFreqMap(const Vector<uInt>& freqs) { |
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458 | restfreqidx_.resize(); |
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459 | restfreqidx_ = freqs; |
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460 | return True; |
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461 | } |
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462 | |
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463 | Bool SDContainer::setDirection(const Vector<Double>& point, uInt whichBeam) { |
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464 | if (point.nelements() != 2) return False; |
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465 | ArrayAccessor<Double, Axis<asap::BeamAxis> > aa0(direction_); |
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466 | aa0.reset(aa0.begin(whichBeam)); |
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467 | ArrayAccessor<Double, Axis<asap::BeamAxis> > jj(point); |
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468 | for (ArrayAccessor<Double, Axis<asap::IFAxis> > i(aa0);i != i.end(); ++i) { |
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469 | |
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470 | (*i) = (*jj); |
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471 | jj++; |
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472 | } |
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473 | return True; |
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474 | } |
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475 | |
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476 | Bool SDContainer::putDirection(const Array<Double>& dir) { |
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477 | direction_.resize(); |
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478 | direction_ = dir; |
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479 | return True; |
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480 | } |
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481 | |
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482 | Bool SDContainer::appendHistory(const String& hist) |
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483 | { |
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484 | history_.resize(history_.nelements()+1,True); |
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485 | history_[history_.nelements()-1] = hist; |
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486 | return True; |
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487 | } |
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488 | Bool SDContainer::putHistory(const Vector<String>& hist) |
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489 | { |
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490 | history_.resize(); |
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491 | history_ = hist; |
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492 | return True; |
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493 | } |
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494 | |
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495 | void SDContainer::setSlice (IPosition& start, IPosition& end, |
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496 | const IPosition& shpIn, const IPosition& shpOut, |
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497 | uInt whichBeam, uInt whichIF, Bool tSys, |
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498 | Bool xPol) const |
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499 | // |
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500 | // tSYs |
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501 | // shpIn [nPol] |
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502 | // else |
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503 | // shpIn [nCHan,nPol] |
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504 | // |
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505 | // if xPol present, the output nPol = 4 but |
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506 | // the input spectra are nPol=2 (tSys) or nPol=2 (spectra) |
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507 | // |
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508 | { |
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509 | AlwaysAssert(asap::nAxes==4,AipsError); |
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510 | uInt pOff = 0; |
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511 | if (xPol) pOff += 2; |
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512 | if (tSys) { |
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513 | AlwaysAssert(shpOut(asap::PolAxis)==shpIn(0)+pOff,AipsError); // pol |
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514 | } else { |
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515 | AlwaysAssert(shpOut(asap::ChanAxis)==shpIn(0),AipsError); // chan |
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516 | AlwaysAssert(shpOut(asap::PolAxis)==shpIn(1)+pOff,AipsError); // pol |
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517 | } |
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518 | // |
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519 | start.resize(asap::nAxes); |
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520 | start = 0; |
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521 | start(asap::BeamAxis) = whichBeam; |
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522 | start(asap::IFAxis) = whichIF; |
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523 | // |
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524 | end.resize(asap::nAxes); |
---|
525 | end = shpOut-1; |
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526 | end(asap::BeamAxis) = whichBeam; |
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527 | end(asap::IFAxis) = whichIF; |
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528 | } |
---|
529 | |
---|
530 | |
---|
531 | uInt SDFrequencyTable::addFrequency(Double refPix, Double refVal, Double inc) |
---|
532 | { |
---|
533 | if (length() > 0) { |
---|
534 | for (uInt i=0; i< length();i++) { |
---|
535 | if (near(refVal,refVal_[i]) && |
---|
536 | near(refPix,refPix_[i]) && |
---|
537 | near(inc,increment_[i])) { |
---|
538 | return i; |
---|
539 | } |
---|
540 | } |
---|
541 | } |
---|
542 | |
---|
543 | // Not found - add it |
---|
544 | |
---|
545 | nFreq_ += 1; |
---|
546 | refPix_.resize(nFreq_,True); |
---|
547 | refVal_.resize(nFreq_,True); |
---|
548 | increment_.resize(nFreq_,True); |
---|
549 | refPix_[nFreq_-1] = refPix; |
---|
550 | refVal_[nFreq_-1] = refVal; |
---|
551 | increment_[nFreq_-1] = inc; |
---|
552 | return nFreq_-1; |
---|
553 | } |
---|
554 | |
---|
555 | uInt SDFrequencyTable::addRestFrequency(Double val) |
---|
556 | { |
---|
557 | uInt nFreq = restFreqs_.nelements(); |
---|
558 | if (nFreq>0) { |
---|
559 | for (uInt i=0; i<nFreq;i++) { |
---|
560 | if (near(restFreqs_[i],val)) { |
---|
561 | return i; |
---|
562 | } |
---|
563 | } |
---|
564 | } |
---|
565 | |
---|
566 | // Not found - add it |
---|
567 | |
---|
568 | nFreq += 1; |
---|
569 | restFreqs_.resize(nFreq,True); |
---|
570 | restFreqs_[nFreq-1] = val; |
---|
571 | return nFreq-1; |
---|
572 | } |
---|
573 | |
---|
574 | |
---|
575 | void SDFrequencyTable::restFrequencies(Vector<Double>& rfs, |
---|
576 | String& rfunit ) const |
---|
577 | { |
---|
578 | rfs.resize(restFreqs_.nelements()); |
---|
579 | rfs = restFreqs_; |
---|
580 | rfunit = restFreqUnit_; |
---|
581 | } |
---|
582 | |
---|
583 | |
---|
584 | |
---|
585 | // SDDataDesc |
---|
586 | |
---|
587 | uInt SDDataDesc::addEntry (const String& source, uInt ID, |
---|
588 | const MDirection& dir, uInt secID) |
---|
589 | { |
---|
590 | |
---|
591 | // See if already exists |
---|
592 | |
---|
593 | if (n_ > 0) { |
---|
594 | for (uInt i=0; i<n_; i++) { |
---|
595 | if (source==source_[i] && ID==ID_[i]) { |
---|
596 | return i; |
---|
597 | } |
---|
598 | } |
---|
599 | } |
---|
600 | |
---|
601 | // Not found - add it |
---|
602 | |
---|
603 | n_ += 1; |
---|
604 | source_.resize(n_,True); |
---|
605 | ID_.resize(n_,True); |
---|
606 | secID_.resize(n_,True); |
---|
607 | secDir_.resize(n_,True,True); |
---|
608 | // |
---|
609 | source_[n_-1] = source; |
---|
610 | ID_[n_-1] = ID; |
---|
611 | secID_[n_-1] = secID; |
---|
612 | secDir_[n_-1] = dir; |
---|
613 | // |
---|
614 | return n_-1; |
---|
615 | } |
---|
616 | |
---|
617 | void SDDataDesc::summary() const |
---|
618 | { |
---|
619 | if (n_>0) { |
---|
620 | cerr << "Source ID" << endl; |
---|
621 | for (uInt i=0; i<n_; i++) { |
---|
622 | cout << setw(11) << source_(i) << ID_(i) << endl; |
---|
623 | } |
---|
624 | } |
---|
625 | } |
---|