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