1 | // |
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2 | // C++ Implementation: Scantable |
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3 | // |
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4 | // Description: |
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5 | // |
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6 | // |
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7 | // Author: Malte Marquarding <asap@atnf.csiro.au>, (C) 2005 |
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8 | // |
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9 | // Copyright: See COPYING file that comes with this distribution |
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10 | // |
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11 | // |
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12 | #include <map> |
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13 | |
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14 | #include <casa/aips.h> |
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15 | #include <casa/iostream.h> |
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16 | #include <casa/iomanip.h> |
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17 | #include <casa/OS/Path.h> |
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18 | #include <casa/OS/File.h> |
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19 | #include <casa/Arrays/Array.h> |
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20 | #include <casa/Arrays/ArrayMath.h> |
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21 | #include <casa/Arrays/MaskArrMath.h> |
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22 | #include <casa/Arrays/ArrayLogical.h> |
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23 | #include <casa/Arrays/ArrayAccessor.h> |
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24 | #include <casa/Arrays/VectorSTLIterator.h> |
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25 | #include <casa/Arrays/Vector.h> |
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26 | #include <casa/BasicMath/Math.h> |
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27 | #include <casa/BasicSL/Constants.h> |
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28 | #include <casa/Quanta/MVAngle.h> |
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29 | #include <casa/Containers/RecordField.h> |
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30 | #include <casa/Utilities/GenSort.h> |
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31 | |
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32 | #include <tables/Tables/TableParse.h> |
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33 | #include <tables/Tables/TableDesc.h> |
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34 | #include <tables/Tables/TableCopy.h> |
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35 | #include <tables/Tables/SetupNewTab.h> |
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36 | #include <tables/Tables/ScaColDesc.h> |
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37 | #include <tables/Tables/ArrColDesc.h> |
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38 | #include <tables/Tables/TableRow.h> |
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39 | #include <tables/Tables/TableVector.h> |
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40 | #include <tables/Tables/TableIter.h> |
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41 | |
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42 | #include <tables/Tables/ExprNode.h> |
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43 | #include <tables/Tables/TableRecord.h> |
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44 | #include <measures/Measures/MFrequency.h> |
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45 | #include <measures/Measures/MEpoch.h> |
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46 | #include <measures/Measures/MeasTable.h> |
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47 | #include <measures/Measures/MeasRef.h> |
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48 | #include <measures/TableMeasures/TableMeasRefDesc.h> |
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49 | #include <measures/TableMeasures/TableMeasValueDesc.h> |
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50 | #include <measures/TableMeasures/TableMeasDesc.h> |
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51 | #include <measures/TableMeasures/ScalarMeasColumn.h> |
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52 | #include <coordinates/Coordinates/CoordinateUtil.h> |
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53 | #include <casa/Quanta/MVTime.h> |
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54 | #include <casa/Quanta/MVAngle.h> |
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55 | |
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56 | #include "Scantable.h" |
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57 | #include "STPolLinear.h" |
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58 | #include "STPolStokes.h" |
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59 | #include "STAttr.h" |
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60 | #include "MathUtils.h" |
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61 | |
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62 | using namespace casa; |
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63 | |
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64 | namespace asap { |
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65 | |
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66 | std::map<std::string, STPol::STPolFactory *> Scantable::factories_; |
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67 | |
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68 | void Scantable::initFactories() { |
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69 | if ( factories_.empty() ) { |
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70 | Scantable::factories_["linear"] = &STPolLinear::myFactory; |
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71 | Scantable::factories_["stokes"] = &STPolStokes::myFactory; |
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72 | } |
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73 | } |
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74 | |
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75 | Scantable::Scantable(Table::TableType ttype) : |
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76 | type_(ttype) |
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77 | { |
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78 | initFactories(); |
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79 | setupMainTable(); |
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80 | freqTable_ = STFrequencies(*this); |
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81 | table_.rwKeywordSet().defineTable("FREQUENCIES", freqTable_.table()); |
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82 | weatherTable_ = STWeather(*this); |
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83 | table_.rwKeywordSet().defineTable("WEATHER", weatherTable_.table()); |
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84 | focusTable_ = STFocus(*this); |
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85 | table_.rwKeywordSet().defineTable("FOCUS", focusTable_.table()); |
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86 | tcalTable_ = STTcal(*this); |
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87 | table_.rwKeywordSet().defineTable("TCAL", tcalTable_.table()); |
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88 | moleculeTable_ = STMolecules(*this); |
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89 | table_.rwKeywordSet().defineTable("MOLECULES", moleculeTable_.table()); |
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90 | historyTable_ = STHistory(*this); |
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91 | table_.rwKeywordSet().defineTable("HISTORY", historyTable_.table()); |
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92 | fitTable_ = STFit(*this); |
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93 | table_.rwKeywordSet().defineTable("FIT", fitTable_.table()); |
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94 | originalTable_ = table_; |
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95 | attach(); |
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96 | } |
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97 | |
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98 | Scantable::Scantable(const std::string& name, Table::TableType ttype) : |
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99 | type_(ttype) |
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100 | { |
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101 | initFactories(); |
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102 | Table tab(name, Table::Update); |
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103 | uInt version = tab.keywordSet().asuInt("VERSION"); |
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104 | if (version != version_) { |
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105 | throw(AipsError("Unsupported version of ASAP file.")); |
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106 | } |
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107 | if ( type_ == Table::Memory ) { |
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108 | table_ = tab.copyToMemoryTable(generateName()); |
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109 | } else { |
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110 | table_ = tab; |
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111 | } |
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112 | |
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113 | attachSubtables(); |
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114 | originalTable_ = table_; |
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115 | attach(); |
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116 | } |
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117 | |
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118 | Scantable::Scantable( const Scantable& other, bool clear ) |
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119 | { |
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120 | // with or without data |
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121 | String newname = String(generateName()); |
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122 | type_ = other.table_.tableType(); |
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123 | if ( other.table_.tableType() == Table::Memory ) { |
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124 | if ( clear ) { |
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125 | table_ = TableCopy::makeEmptyMemoryTable(newname, |
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126 | other.table_, True); |
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127 | } else |
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128 | table_ = other.table_.copyToMemoryTable(newname); |
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129 | } else { |
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130 | other.table_.deepCopy(newname, Table::New, False, |
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131 | other.table_.endianFormat(), |
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132 | Bool(clear)); |
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133 | table_ = Table(newname, Table::Update); |
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134 | table_.markForDelete(); |
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135 | } |
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136 | |
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137 | if ( clear ) copySubtables(other); |
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138 | attachSubtables(); |
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139 | originalTable_ = table_; |
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140 | attach(); |
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141 | } |
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142 | |
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143 | void Scantable::copySubtables(const Scantable& other) { |
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144 | Table t = table_.rwKeywordSet().asTable("FREQUENCIES"); |
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145 | TableCopy::copyRows(t, other.freqTable_.table()); |
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146 | t = table_.rwKeywordSet().asTable("FOCUS"); |
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147 | TableCopy::copyRows(t, other.focusTable_.table()); |
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148 | t = table_.rwKeywordSet().asTable("WEATHER"); |
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149 | TableCopy::copyRows(t, other.weatherTable_.table()); |
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150 | t = table_.rwKeywordSet().asTable("TCAL"); |
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151 | TableCopy::copyRows(t, other.tcalTable_.table()); |
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152 | t = table_.rwKeywordSet().asTable("MOLECULES"); |
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153 | TableCopy::copyRows(t, other.moleculeTable_.table()); |
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154 | t = table_.rwKeywordSet().asTable("HISTORY"); |
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155 | TableCopy::copyRows(t, other.historyTable_.table()); |
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156 | t = table_.rwKeywordSet().asTable("FIT"); |
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157 | TableCopy::copyRows(t, other.fitTable_.table()); |
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158 | } |
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159 | |
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160 | void Scantable::attachSubtables() |
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161 | { |
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162 | freqTable_ = STFrequencies(table_); |
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163 | focusTable_ = STFocus(table_); |
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164 | weatherTable_ = STWeather(table_); |
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165 | tcalTable_ = STTcal(table_); |
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166 | moleculeTable_ = STMolecules(table_); |
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167 | historyTable_ = STHistory(table_); |
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168 | fitTable_ = STFit(table_); |
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169 | } |
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170 | |
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171 | Scantable::~Scantable() |
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172 | { |
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173 | //cout << "~Scantable() " << this << endl; |
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174 | } |
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175 | |
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176 | void Scantable::setupMainTable() |
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177 | { |
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178 | TableDesc td("", "1", TableDesc::Scratch); |
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179 | td.comment() = "An ASAP Scantable"; |
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180 | td.rwKeywordSet().define("VERSION", uInt(version_)); |
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181 | |
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182 | // n Cycles |
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183 | td.addColumn(ScalarColumnDesc<uInt>("SCANNO")); |
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184 | // new index every nBeam x nIF x nPol |
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185 | td.addColumn(ScalarColumnDesc<uInt>("CYCLENO")); |
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186 | |
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187 | td.addColumn(ScalarColumnDesc<uInt>("BEAMNO")); |
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188 | td.addColumn(ScalarColumnDesc<uInt>("IFNO")); |
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189 | // linear, circular, stokes |
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190 | td.rwKeywordSet().define("POLTYPE", String("linear")); |
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191 | td.addColumn(ScalarColumnDesc<uInt>("POLNO")); |
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192 | |
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193 | td.addColumn(ScalarColumnDesc<uInt>("FREQ_ID")); |
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194 | td.addColumn(ScalarColumnDesc<uInt>("MOLECULE_ID")); |
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195 | td.addColumn(ScalarColumnDesc<Int>("REFBEAMNO")); |
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196 | |
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197 | td.addColumn(ScalarColumnDesc<Double>("TIME")); |
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198 | TableMeasRefDesc measRef(MEpoch::UTC); // UTC as default |
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199 | TableMeasValueDesc measVal(td, "TIME"); |
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200 | TableMeasDesc<MEpoch> mepochCol(measVal, measRef); |
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201 | mepochCol.write(td); |
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202 | |
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203 | td.addColumn(ScalarColumnDesc<Double>("INTERVAL")); |
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204 | |
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205 | td.addColumn(ScalarColumnDesc<String>("SRCNAME")); |
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206 | // Type of source (on=0, off=1, other=-1) |
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207 | td.addColumn(ScalarColumnDesc<Int>("SRCTYPE", Int(-1))); |
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208 | td.addColumn(ScalarColumnDesc<String>("FIELDNAME")); |
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209 | |
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210 | //The actual Data Vectors |
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211 | td.addColumn(ArrayColumnDesc<Float>("SPECTRA")); |
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212 | td.addColumn(ArrayColumnDesc<uChar>("FLAGTRA")); |
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213 | td.addColumn(ArrayColumnDesc<Float>("TSYS")); |
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214 | |
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215 | td.addColumn(ArrayColumnDesc<Double>("DIRECTION", |
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216 | IPosition(1,2), |
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217 | ColumnDesc::Direct)); |
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218 | TableMeasRefDesc mdirRef(MDirection::J2000); // default |
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219 | TableMeasValueDesc tmvdMDir(td, "DIRECTION"); |
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220 | // the TableMeasDesc gives the column a type |
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221 | TableMeasDesc<MDirection> mdirCol(tmvdMDir, mdirRef); |
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222 | // a uder set table type e.g. GALCTIC, B1950 ... |
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223 | td.rwKeywordSet().define("DIRECTIONREF", String("J2000")); |
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224 | // writing create the measure column |
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225 | mdirCol.write(td); |
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226 | td.addColumn(ScalarColumnDesc<Float>("AZIMUTH")); |
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227 | td.addColumn(ScalarColumnDesc<Float>("ELEVATION")); |
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228 | td.addColumn(ScalarColumnDesc<Float>("PARANGLE")); |
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229 | td.addColumn(ScalarColumnDesc<Float>("OPACITY")); |
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230 | |
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231 | td.addColumn(ScalarColumnDesc<uInt>("TCAL_ID")); |
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232 | ScalarColumnDesc<Int> fitColumn("FIT_ID"); |
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233 | fitColumn.setDefault(Int(-1)); |
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234 | td.addColumn(fitColumn); |
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235 | |
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236 | td.addColumn(ScalarColumnDesc<uInt>("FOCUS_ID")); |
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237 | td.addColumn(ScalarColumnDesc<uInt>("WEATHER_ID")); |
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238 | |
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239 | // columns which just get dragged along, as they aren't used in asap |
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240 | td.addColumn(ScalarColumnDesc<Double>("SRCVELOCITY")); |
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241 | td.addColumn(ArrayColumnDesc<Double>("SRCPROPERMOTION")); |
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242 | td.addColumn(ArrayColumnDesc<Double>("SRCDIRECTION")); |
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243 | td.addColumn(ArrayColumnDesc<Double>("SCANRATE")); |
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244 | |
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245 | td.rwKeywordSet().define("OBSMODE", String("")); |
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246 | |
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247 | // Now create Table SetUp from the description. |
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248 | SetupNewTable aNewTab(generateName(), td, Table::Scratch); |
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249 | table_ = Table(aNewTab, type_, 0); |
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250 | originalTable_ = table_; |
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251 | } |
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252 | |
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253 | |
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254 | void Scantable::attach() |
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255 | { |
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256 | timeCol_.attach(table_, "TIME"); |
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257 | srcnCol_.attach(table_, "SRCNAME"); |
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258 | specCol_.attach(table_, "SPECTRA"); |
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259 | flagsCol_.attach(table_, "FLAGTRA"); |
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260 | tsysCol_.attach(table_, "TSYS"); |
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261 | cycleCol_.attach(table_,"CYCLENO"); |
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262 | scanCol_.attach(table_, "SCANNO"); |
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263 | beamCol_.attach(table_, "BEAMNO"); |
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264 | ifCol_.attach(table_, "IFNO"); |
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265 | polCol_.attach(table_, "POLNO"); |
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266 | integrCol_.attach(table_, "INTERVAL"); |
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267 | azCol_.attach(table_, "AZIMUTH"); |
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268 | elCol_.attach(table_, "ELEVATION"); |
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269 | dirCol_.attach(table_, "DIRECTION"); |
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270 | paraCol_.attach(table_, "PARANGLE"); |
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271 | fldnCol_.attach(table_, "FIELDNAME"); |
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272 | rbeamCol_.attach(table_, "REFBEAMNO"); |
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273 | |
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274 | mfitidCol_.attach(table_,"FIT_ID"); |
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275 | mfreqidCol_.attach(table_, "FREQ_ID"); |
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276 | mtcalidCol_.attach(table_, "TCAL_ID"); |
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277 | mfocusidCol_.attach(table_, "FOCUS_ID"); |
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278 | mmolidCol_.attach(table_, "MOLECULE_ID"); |
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279 | } |
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280 | |
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281 | void Scantable::setHeader(const STHeader& sdh) |
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282 | { |
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283 | table_.rwKeywordSet().define("nIF", sdh.nif); |
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284 | table_.rwKeywordSet().define("nBeam", sdh.nbeam); |
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285 | table_.rwKeywordSet().define("nPol", sdh.npol); |
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286 | table_.rwKeywordSet().define("nChan", sdh.nchan); |
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287 | table_.rwKeywordSet().define("Observer", sdh.observer); |
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288 | table_.rwKeywordSet().define("Project", sdh.project); |
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289 | table_.rwKeywordSet().define("Obstype", sdh.obstype); |
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290 | table_.rwKeywordSet().define("AntennaName", sdh.antennaname); |
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291 | table_.rwKeywordSet().define("AntennaPosition", sdh.antennaposition); |
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292 | table_.rwKeywordSet().define("Equinox", sdh.equinox); |
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293 | table_.rwKeywordSet().define("FreqRefFrame", sdh.freqref); |
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294 | table_.rwKeywordSet().define("FreqRefVal", sdh.reffreq); |
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295 | table_.rwKeywordSet().define("Bandwidth", sdh.bandwidth); |
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296 | table_.rwKeywordSet().define("UTC", sdh.utc); |
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297 | table_.rwKeywordSet().define("FluxUnit", sdh.fluxunit); |
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298 | table_.rwKeywordSet().define("Epoch", sdh.epoch); |
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299 | table_.rwKeywordSet().define("POLTYPE", sdh.poltype); |
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300 | } |
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301 | |
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302 | STHeader Scantable::getHeader() const |
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303 | { |
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304 | STHeader sdh; |
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305 | table_.keywordSet().get("nBeam",sdh.nbeam); |
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306 | table_.keywordSet().get("nIF",sdh.nif); |
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307 | table_.keywordSet().get("nPol",sdh.npol); |
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308 | table_.keywordSet().get("nChan",sdh.nchan); |
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309 | table_.keywordSet().get("Observer", sdh.observer); |
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310 | table_.keywordSet().get("Project", sdh.project); |
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311 | table_.keywordSet().get("Obstype", sdh.obstype); |
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312 | table_.keywordSet().get("AntennaName", sdh.antennaname); |
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313 | table_.keywordSet().get("AntennaPosition", sdh.antennaposition); |
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314 | table_.keywordSet().get("Equinox", sdh.equinox); |
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315 | table_.keywordSet().get("FreqRefFrame", sdh.freqref); |
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316 | table_.keywordSet().get("FreqRefVal", sdh.reffreq); |
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317 | table_.keywordSet().get("Bandwidth", sdh.bandwidth); |
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318 | table_.keywordSet().get("UTC", sdh.utc); |
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319 | table_.keywordSet().get("FluxUnit", sdh.fluxunit); |
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320 | table_.keywordSet().get("Epoch", sdh.epoch); |
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321 | table_.keywordSet().get("POLTYPE", sdh.poltype); |
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322 | return sdh; |
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323 | } |
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324 | |
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325 | bool Scantable::conformant( const Scantable& other ) |
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326 | { |
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327 | return this->getHeader().conformant(other.getHeader()); |
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328 | } |
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329 | |
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330 | |
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331 | int Scantable::nscan() const { |
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332 | Vector<uInt> scannos(scanCol_.getColumn()); |
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333 | uInt nout = GenSort<uInt>::sort( scannos, Sort::Ascending, |
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334 | Sort::QuickSort|Sort::NoDuplicates ); |
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335 | return int(nout); |
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336 | } |
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337 | |
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338 | std::string Scantable::formatSec(Double x) const |
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339 | { |
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340 | Double xcop = x; |
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341 | MVTime mvt(xcop/24./3600.); // make days |
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342 | |
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343 | if (x < 59.95) |
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344 | return String(" ") + mvt.string(MVTime::TIME_CLEAN_NO_HM, 7)+"s"; |
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345 | else if (x < 3599.95) |
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346 | return String(" ") + mvt.string(MVTime::TIME_CLEAN_NO_H,7)+" "; |
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347 | else { |
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348 | ostringstream oss; |
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349 | oss << setw(2) << std::right << setprecision(1) << mvt.hour(); |
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350 | oss << ":" << mvt.string(MVTime::TIME_CLEAN_NO_H,7) << " "; |
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351 | return String(oss); |
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352 | } |
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353 | }; |
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354 | |
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355 | std::string Scantable::formatDirection(const MDirection& md) const |
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356 | { |
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357 | Vector<Double> t = md.getAngle(Unit(String("rad"))).getValue(); |
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358 | Int prec = 7; |
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359 | |
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360 | MVAngle mvLon(t[0]); |
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361 | String sLon = mvLon.string(MVAngle::TIME,prec); |
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362 | uInt tp = md.getRef().getType(); |
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363 | if (tp == MDirection::GALACTIC || |
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364 | tp == MDirection::SUPERGAL ) { |
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365 | sLon = mvLon(0.0).string(MVAngle::ANGLE_CLEAN,prec); |
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366 | } |
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367 | MVAngle mvLat(t[1]); |
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368 | String sLat = mvLat.string(MVAngle::ANGLE+MVAngle::DIG2,prec); |
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369 | return sLon + String(" ") + sLat; |
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370 | } |
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371 | |
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372 | |
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373 | std::string Scantable::getFluxUnit() const |
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374 | { |
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375 | return table_.keywordSet().asString("FluxUnit"); |
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376 | } |
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377 | |
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378 | void Scantable::setFluxUnit(const std::string& unit) |
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379 | { |
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380 | String tmp(unit); |
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381 | Unit tU(tmp); |
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382 | if (tU==Unit("K") || tU==Unit("Jy")) { |
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383 | table_.rwKeywordSet().define(String("FluxUnit"), tmp); |
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384 | } else { |
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385 | throw AipsError("Illegal unit - must be compatible with Jy or K"); |
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386 | } |
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387 | } |
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388 | |
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389 | void Scantable::setInstrument(const std::string& name) |
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390 | { |
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391 | bool throwIt = true; |
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392 | // create an Instrument to see if this is valid |
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393 | STAttr::convertInstrument(name, throwIt); |
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394 | String nameU(name); |
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395 | nameU.upcase(); |
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396 | table_.rwKeywordSet().define(String("AntennaName"), nameU); |
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397 | } |
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398 | |
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399 | MPosition Scantable::getAntennaPosition () const |
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400 | { |
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401 | Vector<Double> antpos; |
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402 | table_.keywordSet().get("AntennaPosition", antpos); |
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403 | MVPosition mvpos(antpos(0),antpos(1),antpos(2)); |
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404 | return MPosition(mvpos); |
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405 | } |
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406 | |
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407 | void Scantable::makePersistent(const std::string& filename) |
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408 | { |
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409 | String inname(filename); |
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410 | Path path(inname); |
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411 | inname = path.expandedName(); |
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412 | table_.deepCopy(inname, Table::New); |
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413 | } |
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414 | |
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415 | int Scantable::nbeam( int scanno ) const |
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416 | { |
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417 | if ( scanno < 0 ) { |
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418 | Int n; |
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419 | table_.keywordSet().get("nBeam",n); |
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420 | return int(n); |
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421 | } else { |
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422 | // take the first POLNO,IFNO,CYCLENO as nbeam shouldn't vary with these |
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423 | Table t = table_(table_.col("SCANNO") == scanno); |
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424 | ROTableRow row(t); |
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425 | const TableRecord& rec = row.get(0); |
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426 | Table subt = t( t.col("IFNO") == Int(rec.asuInt("IFNO")) |
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427 | && t.col("POLNO") == Int(rec.asuInt("POLNO")) |
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428 | && t.col("CYCLENO") == Int(rec.asuInt("CYCLENO")) ); |
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429 | ROTableVector<uInt> v(subt, "BEAMNO"); |
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430 | return int(v.nelements()); |
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431 | } |
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432 | return 0; |
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433 | } |
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434 | |
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435 | int Scantable::nif( int scanno ) const |
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436 | { |
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437 | if ( scanno < 0 ) { |
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438 | Int n; |
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439 | table_.keywordSet().get("nIF",n); |
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440 | return int(n); |
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441 | } else { |
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442 | // take the first POLNO,BEAMNO,CYCLENO as nbeam shouldn't vary with these |
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443 | Table t = table_(table_.col("SCANNO") == scanno); |
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444 | ROTableRow row(t); |
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445 | const TableRecord& rec = row.get(0); |
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446 | Table subt = t( t.col("BEAMNO") == Int(rec.asuInt("BEAMNO")) |
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447 | && t.col("POLNO") == Int(rec.asuInt("POLNO")) |
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448 | && t.col("CYCLENO") == Int(rec.asuInt("CYCLENO")) ); |
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449 | if ( subt.nrow() == 0 ) return 0; |
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450 | ROTableVector<uInt> v(subt, "IFNO"); |
---|
451 | return int(v.nelements()); |
---|
452 | } |
---|
453 | return 0; |
---|
454 | } |
---|
455 | |
---|
456 | int Scantable::npol( int scanno ) const |
---|
457 | { |
---|
458 | if ( scanno < 0 ) { |
---|
459 | Int n; |
---|
460 | table_.keywordSet().get("nPol",n); |
---|
461 | return n; |
---|
462 | } else { |
---|
463 | // take the first POLNO,IFNO,CYCLENO as nbeam shouldn't vary with these |
---|
464 | Table t = table_(table_.col("SCANNO") == scanno); |
---|
465 | ROTableRow row(t); |
---|
466 | const TableRecord& rec = row.get(0); |
---|
467 | Table subt = t( t.col("BEAMNO") == Int(rec.asuInt("BEAMNO")) |
---|
468 | && t.col("IFNO") == Int(rec.asuInt("IFNO")) |
---|
469 | && t.col("CYCLENO") == Int(rec.asuInt("CYCLENO")) ); |
---|
470 | if ( subt.nrow() == 0 ) return 0; |
---|
471 | ROTableVector<uInt> v(subt, "POLNO"); |
---|
472 | return int(v.nelements()); |
---|
473 | } |
---|
474 | return 0; |
---|
475 | } |
---|
476 | |
---|
477 | int Scantable::ncycle( int scanno ) const |
---|
478 | { |
---|
479 | if ( scanno < 0 ) { |
---|
480 | Block<String> cols(2); |
---|
481 | cols[0] = "SCANNO"; |
---|
482 | cols[1] = "CYCLENO"; |
---|
483 | TableIterator it(table_, cols); |
---|
484 | int n = 0; |
---|
485 | while ( !it.pastEnd() ) { |
---|
486 | ++n; |
---|
487 | ++it; |
---|
488 | } |
---|
489 | return n; |
---|
490 | } else { |
---|
491 | Table t = table_(table_.col("SCANNO") == scanno); |
---|
492 | ROTableRow row(t); |
---|
493 | const TableRecord& rec = row.get(0); |
---|
494 | Table subt = t( t.col("BEAMNO") == Int(rec.asuInt("BEAMNO")) |
---|
495 | && t.col("POLNO") == Int(rec.asuInt("POLNO")) |
---|
496 | && t.col("IFNO") == Int(rec.asuInt("IFNO")) ); |
---|
497 | if ( subt.nrow() == 0 ) return 0; |
---|
498 | return int(subt.nrow()); |
---|
499 | } |
---|
500 | return 0; |
---|
501 | } |
---|
502 | |
---|
503 | |
---|
504 | int Scantable::nrow( int scanno ) const |
---|
505 | { |
---|
506 | return int(table_.nrow()); |
---|
507 | } |
---|
508 | |
---|
509 | int Scantable::nchan( int ifno ) const |
---|
510 | { |
---|
511 | if ( ifno < 0 ) { |
---|
512 | Int n; |
---|
513 | table_.keywordSet().get("nChan",n); |
---|
514 | return int(n); |
---|
515 | } else { |
---|
516 | // take the first SCANNO,POLNO,BEAMNO,CYCLENO as nbeam shouldn't vary with these |
---|
517 | Table t = table_(table_.col("IFNO") == ifno); |
---|
518 | if ( t.nrow() == 0 ) return 0; |
---|
519 | ROArrayColumn<Float> v(t, "SPECTRA"); |
---|
520 | return v.shape(0)(0); |
---|
521 | } |
---|
522 | return 0; |
---|
523 | } |
---|
524 | |
---|
525 | int Scantable::getChannels(int whichrow) const |
---|
526 | { |
---|
527 | return specCol_.shape(whichrow)(0); |
---|
528 | } |
---|
529 | |
---|
530 | int Scantable::getBeam(int whichrow) const |
---|
531 | { |
---|
532 | return beamCol_(whichrow); |
---|
533 | } |
---|
534 | |
---|
535 | int Scantable::getIF(int whichrow) const |
---|
536 | { |
---|
537 | return ifCol_(whichrow); |
---|
538 | } |
---|
539 | |
---|
540 | int Scantable::getPol(int whichrow) const |
---|
541 | { |
---|
542 | return polCol_(whichrow); |
---|
543 | } |
---|
544 | |
---|
545 | std::string Scantable::formatTime(const MEpoch& me, bool showdate) const |
---|
546 | { |
---|
547 | MVTime mvt(me.getValue()); |
---|
548 | if (showdate) |
---|
549 | mvt.setFormat(MVTime::YMD); |
---|
550 | else |
---|
551 | mvt.setFormat(MVTime::TIME); |
---|
552 | ostringstream oss; |
---|
553 | oss << mvt; |
---|
554 | return String(oss); |
---|
555 | } |
---|
556 | |
---|
557 | void Scantable::calculateAZEL() |
---|
558 | { |
---|
559 | MPosition mp = getAntennaPosition(); |
---|
560 | MEpoch::ROScalarColumn timeCol(table_, "TIME"); |
---|
561 | ostringstream oss; |
---|
562 | oss << "Computed azimuth/elevation using " << endl |
---|
563 | << mp << endl; |
---|
564 | for (Int i=0; i<nrow(); ++i) { |
---|
565 | MEpoch me = timeCol(i); |
---|
566 | MDirection md = getDirection(i); |
---|
567 | oss << " Time: " << formatTime(me,False) << " Direction: " << formatDirection(md) |
---|
568 | << endl << " => "; |
---|
569 | MeasFrame frame(mp, me); |
---|
570 | Vector<Double> azel = |
---|
571 | MDirection::Convert(md, MDirection::Ref(MDirection::AZEL, |
---|
572 | frame) |
---|
573 | )().getAngle("rad").getValue(); |
---|
574 | azCol_.put(i,Float(azel[0])); |
---|
575 | elCol_.put(i,Float(azel[1])); |
---|
576 | oss << "azel: " << azel[0]/C::pi*180.0 << " " |
---|
577 | << azel[1]/C::pi*180.0 << " (deg)" << endl; |
---|
578 | } |
---|
579 | pushLog(String(oss)); |
---|
580 | } |
---|
581 | |
---|
582 | void Scantable::flag(const std::vector<bool>& msk) |
---|
583 | { |
---|
584 | if ( selector_.empty() && msk.size() == 0 ) |
---|
585 | throw(AipsError("Trying to flag whole scantable.")); |
---|
586 | if ( msk.size() == 0 ) { |
---|
587 | uChar userflag = 1 << 7; |
---|
588 | for ( uInt i=0; i<table_.nrow(); ++i) { |
---|
589 | Vector<uChar> flgs = flagsCol_(i); |
---|
590 | flgs = userflag; |
---|
591 | flagsCol_.put(i, flgs); |
---|
592 | } |
---|
593 | return; |
---|
594 | } |
---|
595 | if ( int(msk.size()) != nchan() ) { |
---|
596 | throw(AipsError("Mask has incorrect number of channels.")); |
---|
597 | } |
---|
598 | for ( uInt i=0; i<table_.nrow(); ++i) { |
---|
599 | Vector<uChar> flgs = flagsCol_(i); |
---|
600 | if ( flgs.nelements() != msk.size() ) { |
---|
601 | throw(AipsError("Mask has incorrect number of channels." |
---|
602 | " Probably varying with IF. Please flag per IF")); |
---|
603 | } |
---|
604 | std::vector<bool>::const_iterator it; |
---|
605 | uInt j = 0; |
---|
606 | uChar userflag = 1 << 7; |
---|
607 | for (it = msk.begin(); it != msk.end(); ++it) { |
---|
608 | if ( *it ) { |
---|
609 | flgs(j) = userflag; |
---|
610 | } |
---|
611 | ++j; |
---|
612 | } |
---|
613 | flagsCol_.put(i, flgs); |
---|
614 | } |
---|
615 | } |
---|
616 | |
---|
617 | std::vector<bool> Scantable::getMask(int whichrow) const |
---|
618 | { |
---|
619 | Vector<uChar> flags; |
---|
620 | flagsCol_.get(uInt(whichrow), flags); |
---|
621 | Vector<Bool> bflag(flags.shape()); |
---|
622 | convertArray(bflag, flags); |
---|
623 | bflag = !bflag; |
---|
624 | std::vector<bool> mask; |
---|
625 | bflag.tovector(mask); |
---|
626 | return mask; |
---|
627 | } |
---|
628 | |
---|
629 | std::vector<float> Scantable::getSpectrum( int whichrow, |
---|
630 | const std::string& poltype ) const |
---|
631 | { |
---|
632 | String ptype = poltype; |
---|
633 | if (poltype == "" ) ptype = getPolType(); |
---|
634 | if ( whichrow < 0 || whichrow >= nrow() ) |
---|
635 | throw(AipsError("Illegal row number.")); |
---|
636 | std::vector<float> out; |
---|
637 | Vector<Float> arr; |
---|
638 | uInt requestedpol = polCol_(whichrow); |
---|
639 | String basetype = getPolType(); |
---|
640 | if ( ptype == basetype ) { |
---|
641 | specCol_.get(whichrow, arr); |
---|
642 | } else { |
---|
643 | STPol* stpol = 0; |
---|
644 | stpol =STPol::getPolClass(Scantable::factories_, basetype); |
---|
645 | try { |
---|
646 | uInt row = uInt(whichrow); |
---|
647 | stpol->setSpectra(getPolMatrix(row)); |
---|
648 | Float fang,fhand,parang; |
---|
649 | fang = focusTable_.getTotalFeedAngle(mfocusidCol_(row)); |
---|
650 | fhand = focusTable_.getFeedHand(mfocusidCol_(row)); |
---|
651 | parang = paraCol_(row); |
---|
652 | /// @todo re-enable this |
---|
653 | // disable total feed angle to support paralactifying Caswell style |
---|
654 | stpol->setPhaseCorrections(parang, -parang, fhand); |
---|
655 | arr = stpol->getSpectrum(requestedpol, ptype); |
---|
656 | delete stpol; |
---|
657 | } catch (AipsError& e) { |
---|
658 | delete stpol; |
---|
659 | throw(e); |
---|
660 | } |
---|
661 | } |
---|
662 | if ( arr.nelements() == 0 ) |
---|
663 | pushLog("Not enough polarisations present to do the conversion."); |
---|
664 | arr.tovector(out); |
---|
665 | return out; |
---|
666 | } |
---|
667 | |
---|
668 | void asap::Scantable::setSpectrum( const std::vector<float>& spec, |
---|
669 | int whichrow ) |
---|
670 | { |
---|
671 | Vector<Float> spectrum(spec); |
---|
672 | Vector<Float> arr; |
---|
673 | specCol_.get(whichrow, arr); |
---|
674 | if ( spectrum.nelements() != arr.nelements() ) |
---|
675 | throw AipsError("The spectrum has incorrect number of channels."); |
---|
676 | specCol_.put(whichrow, spectrum); |
---|
677 | } |
---|
678 | |
---|
679 | |
---|
680 | String Scantable::generateName() |
---|
681 | { |
---|
682 | return (File::newUniqueName("./","temp")).baseName(); |
---|
683 | } |
---|
684 | |
---|
685 | const casa::Table& Scantable::table( ) const |
---|
686 | { |
---|
687 | return table_; |
---|
688 | } |
---|
689 | |
---|
690 | casa::Table& Scantable::table( ) |
---|
691 | { |
---|
692 | return table_; |
---|
693 | } |
---|
694 | |
---|
695 | std::string Scantable::getPolType() const |
---|
696 | { |
---|
697 | return table_.keywordSet().asString("POLTYPE"); |
---|
698 | } |
---|
699 | |
---|
700 | void Scantable::unsetSelection() |
---|
701 | { |
---|
702 | table_ = originalTable_; |
---|
703 | attach(); |
---|
704 | selector_.reset(); |
---|
705 | } |
---|
706 | |
---|
707 | void Scantable::setSelection( const STSelector& selection ) |
---|
708 | { |
---|
709 | Table tab = const_cast<STSelector&>(selection).apply(originalTable_); |
---|
710 | if ( tab.nrow() == 0 ) { |
---|
711 | throw(AipsError("Selection contains no data. Not applying it.")); |
---|
712 | } |
---|
713 | table_ = tab; |
---|
714 | attach(); |
---|
715 | selector_ = selection; |
---|
716 | } |
---|
717 | |
---|
718 | std::string Scantable::summary( bool verbose ) |
---|
719 | { |
---|
720 | // Format header info |
---|
721 | ostringstream oss; |
---|
722 | oss << endl; |
---|
723 | oss << asap::SEPERATOR << endl; |
---|
724 | oss << " Scan Table Summary" << endl; |
---|
725 | oss << asap::SEPERATOR << endl; |
---|
726 | oss.flags(std::ios_base::left); |
---|
727 | oss << setw(15) << "Beams:" << setw(4) << nbeam() << endl |
---|
728 | << setw(15) << "IFs:" << setw(4) << nif() << endl |
---|
729 | << setw(15) << "Polarisations:" << setw(4) << npol() |
---|
730 | << "(" << getPolType() << ")" << endl |
---|
731 | << setw(15) << "Channels:" << setw(4) << nchan() << endl; |
---|
732 | oss << endl; |
---|
733 | String tmp; |
---|
734 | oss << setw(15) << "Observer:" |
---|
735 | << table_.keywordSet().asString("Observer") << endl; |
---|
736 | oss << setw(15) << "Obs Date:" << getTime(-1,true) << endl; |
---|
737 | table_.keywordSet().get("Project", tmp); |
---|
738 | oss << setw(15) << "Project:" << tmp << endl; |
---|
739 | table_.keywordSet().get("Obstype", tmp); |
---|
740 | oss << setw(15) << "Obs. Type:" << tmp << endl; |
---|
741 | table_.keywordSet().get("AntennaName", tmp); |
---|
742 | oss << setw(15) << "Antenna Name:" << tmp << endl; |
---|
743 | table_.keywordSet().get("FluxUnit", tmp); |
---|
744 | oss << setw(15) << "Flux Unit:" << tmp << endl; |
---|
745 | Vector<Double> vec(moleculeTable_.getRestFrequencies()); |
---|
746 | oss << setw(15) << "Rest Freqs:"; |
---|
747 | if (vec.nelements() > 0) { |
---|
748 | oss << setprecision(10) << vec << " [Hz]" << endl; |
---|
749 | } else { |
---|
750 | oss << "none" << endl; |
---|
751 | } |
---|
752 | |
---|
753 | oss << setw(15) << "Abcissa:" << getAbcissaLabel(0) << endl; |
---|
754 | oss << selector_.print() << endl; |
---|
755 | oss << endl; |
---|
756 | // main table |
---|
757 | String dirtype = "Position (" |
---|
758 | + getDirectionRefString() |
---|
759 | + ")"; |
---|
760 | oss << setw(5) << "Scan" << setw(15) << "Source" |
---|
761 | << setw(10) << "Time" << setw(18) << "Integration" << endl; |
---|
762 | oss << setw(5) << "" << setw(5) << "Beam" << setw(3) << "" << dirtype << endl; |
---|
763 | oss << setw(10) << "" << setw(3) << "IF" << setw(6) << "" |
---|
764 | << setw(8) << "Frame" << setw(16) |
---|
765 | << "RefVal" << setw(10) << "RefPix" << setw(12) << "Increment" <<endl; |
---|
766 | oss << asap::SEPERATOR << endl; |
---|
767 | TableIterator iter(table_, "SCANNO"); |
---|
768 | while (!iter.pastEnd()) { |
---|
769 | Table subt = iter.table(); |
---|
770 | ROTableRow row(subt); |
---|
771 | MEpoch::ROScalarColumn timeCol(subt,"TIME"); |
---|
772 | const TableRecord& rec = row.get(0); |
---|
773 | oss << setw(4) << std::right << rec.asuInt("SCANNO") |
---|
774 | << std::left << setw(1) << "" |
---|
775 | << setw(15) << rec.asString("SRCNAME") |
---|
776 | << setw(10) << formatTime(timeCol(0), false); |
---|
777 | // count the cycles in the scan |
---|
778 | TableIterator cyciter(subt, "CYCLENO"); |
---|
779 | int nint = 0; |
---|
780 | while (!cyciter.pastEnd()) { |
---|
781 | ++nint; |
---|
782 | ++cyciter; |
---|
783 | } |
---|
784 | oss << setw(3) << std::right << nint << setw(3) << " x " << std::left |
---|
785 | << setw(6) << formatSec(rec.asFloat("INTERVAL")) << endl; |
---|
786 | |
---|
787 | TableIterator biter(subt, "BEAMNO"); |
---|
788 | while (!biter.pastEnd()) { |
---|
789 | Table bsubt = biter.table(); |
---|
790 | ROTableRow brow(bsubt); |
---|
791 | const TableRecord& brec = brow.get(0); |
---|
792 | uInt row0 = bsubt.rowNumbers(table_)[0]; |
---|
793 | oss << setw(5) << "" << setw(4) << std::right << brec.asuInt("BEAMNO")<< std::left; |
---|
794 | oss << setw(4) << "" << formatDirection(getDirection(row0)) << endl; |
---|
795 | TableIterator iiter(bsubt, "IFNO"); |
---|
796 | while (!iiter.pastEnd()) { |
---|
797 | Table isubt = iiter.table(); |
---|
798 | ROTableRow irow(isubt); |
---|
799 | const TableRecord& irec = irow.get(0); |
---|
800 | oss << setw(10) << ""; |
---|
801 | oss << setw(3) << std::right << irec.asuInt("IFNO") << std::left |
---|
802 | << setw(2) << "" << frequencies().print(irec.asuInt("FREQ_ID")); |
---|
803 | |
---|
804 | ++iiter; |
---|
805 | } |
---|
806 | ++biter; |
---|
807 | } |
---|
808 | ++iter; |
---|
809 | } |
---|
810 | /// @todo implement verbose mode |
---|
811 | return String(oss); |
---|
812 | } |
---|
813 | |
---|
814 | std::string Scantable::getTime(int whichrow, bool showdate) const |
---|
815 | { |
---|
816 | MEpoch::ROScalarColumn timeCol(table_, "TIME"); |
---|
817 | MEpoch me; |
---|
818 | if (whichrow > -1) { |
---|
819 | me = timeCol(uInt(whichrow)); |
---|
820 | } else { |
---|
821 | Double tm; |
---|
822 | table_.keywordSet().get("UTC",tm); |
---|
823 | me = MEpoch(MVEpoch(tm)); |
---|
824 | } |
---|
825 | return formatTime(me, showdate); |
---|
826 | } |
---|
827 | |
---|
828 | std::vector< double > asap::Scantable::getAbcissa( int whichrow ) const |
---|
829 | { |
---|
830 | if ( whichrow > int(table_.nrow()) ) throw(AipsError("Illegal ro number")); |
---|
831 | std::vector<double> stlout; |
---|
832 | int nchan = specCol_(whichrow).nelements(); |
---|
833 | String us = freqTable_.getUnitString(); |
---|
834 | if ( us == "" || us == "pixel" || us == "channel" ) { |
---|
835 | for (int i=0; i<nchan; ++i) { |
---|
836 | stlout.push_back(double(i)); |
---|
837 | } |
---|
838 | return stlout; |
---|
839 | } |
---|
840 | |
---|
841 | const MPosition& mp = getAntennaPosition(); |
---|
842 | const MDirection& md = getDirection(whichrow); |
---|
843 | const MEpoch& me = timeCol_(whichrow); |
---|
844 | Double rf = moleculeTable_.getRestFrequency(mmolidCol_(whichrow)); |
---|
845 | SpectralCoordinate spc = |
---|
846 | freqTable_.getSpectralCoordinate(md, mp, me, rf, mfreqidCol_(whichrow)); |
---|
847 | Vector<Double> pixel(nchan); |
---|
848 | Vector<Double> world; |
---|
849 | indgen(pixel); |
---|
850 | if ( Unit(us) == Unit("Hz") ) { |
---|
851 | for ( int i=0; i < nchan; ++i) { |
---|
852 | Double world; |
---|
853 | spc.toWorld(world, pixel[i]); |
---|
854 | stlout.push_back(double(world)); |
---|
855 | } |
---|
856 | } else if ( Unit(us) == Unit("km/s") ) { |
---|
857 | Vector<Double> world; |
---|
858 | spc.pixelToVelocity(world, pixel); |
---|
859 | world.tovector(stlout); |
---|
860 | } |
---|
861 | return stlout; |
---|
862 | } |
---|
863 | void asap::Scantable::setDirectionRefString( const std::string & refstr ) |
---|
864 | { |
---|
865 | MDirection::Types mdt; |
---|
866 | if (refstr != "" && !MDirection::getType(mdt, refstr)) { |
---|
867 | throw(AipsError("Illegal Direction frame.")); |
---|
868 | } |
---|
869 | if ( refstr == "" ) { |
---|
870 | String defaultstr = MDirection::showType(dirCol_.getMeasRef().getType()); |
---|
871 | table_.rwKeywordSet().define("DIRECTIONREF", defaultstr); |
---|
872 | } else { |
---|
873 | table_.rwKeywordSet().define("DIRECTIONREF", String(refstr)); |
---|
874 | } |
---|
875 | } |
---|
876 | |
---|
877 | std::string asap::Scantable::getDirectionRefString( ) const |
---|
878 | { |
---|
879 | return table_.keywordSet().asString("DIRECTIONREF"); |
---|
880 | } |
---|
881 | |
---|
882 | MDirection Scantable::getDirection(int whichrow ) const |
---|
883 | { |
---|
884 | String usertype = table_.keywordSet().asString("DIRECTIONREF"); |
---|
885 | String type = MDirection::showType(dirCol_.getMeasRef().getType()); |
---|
886 | if ( usertype != type ) { |
---|
887 | MDirection::Types mdt; |
---|
888 | if (!MDirection::getType(mdt, usertype)) { |
---|
889 | throw(AipsError("Illegal Direction frame.")); |
---|
890 | } |
---|
891 | return dirCol_.convert(uInt(whichrow), mdt); |
---|
892 | } else { |
---|
893 | return dirCol_(uInt(whichrow)); |
---|
894 | } |
---|
895 | } |
---|
896 | |
---|
897 | std::string Scantable::getAbcissaLabel( int whichrow ) const |
---|
898 | { |
---|
899 | if ( whichrow > int(table_.nrow()) ) throw(AipsError("Illegal ro number")); |
---|
900 | const MPosition& mp = getAntennaPosition(); |
---|
901 | const MDirection& md = getDirection(whichrow); |
---|
902 | const MEpoch& me = timeCol_(whichrow); |
---|
903 | const Double& rf = mmolidCol_(whichrow); |
---|
904 | SpectralCoordinate spc = |
---|
905 | freqTable_.getSpectralCoordinate(md, mp, me, rf, mfreqidCol_(whichrow)); |
---|
906 | |
---|
907 | String s = "Channel"; |
---|
908 | Unit u = Unit(freqTable_.getUnitString()); |
---|
909 | if (u == Unit("km/s")) { |
---|
910 | s = CoordinateUtil::axisLabel(spc,0,True,True,True); |
---|
911 | } else if (u == Unit("Hz")) { |
---|
912 | Vector<String> wau(1);wau = u.getName(); |
---|
913 | spc.setWorldAxisUnits(wau); |
---|
914 | s = CoordinateUtil::axisLabel(spc,0,True,True,False); |
---|
915 | } |
---|
916 | return s; |
---|
917 | |
---|
918 | } |
---|
919 | |
---|
920 | void asap::Scantable::setRestFrequencies( double rf, const std::string& unit ) |
---|
921 | { |
---|
922 | ///@todo lookup in line table to fill in name and formattedname |
---|
923 | Unit u(unit); |
---|
924 | Quantum<Double> urf(rf, u); |
---|
925 | uInt id = moleculeTable_.addEntry(urf.getValue("Hz"), "", ""); |
---|
926 | TableVector<uInt> tabvec(table_, "MOLECULE_ID"); |
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927 | tabvec = id; |
---|
928 | } |
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929 | |
---|
930 | void asap::Scantable::setRestFrequencies( const std::string& name ) |
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931 | { |
---|
932 | throw(AipsError("setRestFrequencies( const std::string& name ) NYI")); |
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933 | ///@todo implement |
---|
934 | } |
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935 | |
---|
936 | std::vector< unsigned int > asap::Scantable::rownumbers( ) const |
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937 | { |
---|
938 | std::vector<unsigned int> stlout; |
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939 | Vector<uInt> vec = table_.rowNumbers(); |
---|
940 | vec.tovector(stlout); |
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941 | return stlout; |
---|
942 | } |
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943 | |
---|
944 | |
---|
945 | Matrix<Float> asap::Scantable::getPolMatrix( uInt whichrow ) const |
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946 | { |
---|
947 | ROTableRow row(table_); |
---|
948 | const TableRecord& rec = row.get(whichrow); |
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949 | Table t = |
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950 | originalTable_( originalTable_.col("SCANNO") == Int(rec.asuInt("SCANNO")) |
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951 | && originalTable_.col("BEAMNO") == Int(rec.asuInt("BEAMNO")) |
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952 | && originalTable_.col("IFNO") == Int(rec.asuInt("IFNO")) |
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953 | && originalTable_.col("CYCLENO") == Int(rec.asuInt("CYCLENO")) ); |
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954 | ROArrayColumn<Float> speccol(t, "SPECTRA"); |
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955 | return speccol.getColumn(); |
---|
956 | } |
---|
957 | |
---|
958 | std::vector< std::string > asap::Scantable::columnNames( ) const |
---|
959 | { |
---|
960 | Vector<String> vec = table_.tableDesc().columnNames(); |
---|
961 | return mathutil::tovectorstring(vec); |
---|
962 | } |
---|
963 | |
---|
964 | casa::MEpoch::Types asap::Scantable::getTimeReference( ) const |
---|
965 | { |
---|
966 | return MEpoch::castType(timeCol_.getMeasRef().getType()); |
---|
967 | } |
---|
968 | |
---|
969 | void asap::Scantable::addFit( const STFitEntry & fit, int row ) |
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970 | { |
---|
971 | cout << mfitidCol_(uInt(row)) << endl; |
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972 | uInt id = fitTable_.addEntry(fit, mfitidCol_(uInt(row))); |
---|
973 | mfitidCol_.put(uInt(row), id); |
---|
974 | } |
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975 | |
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976 | |
---|
977 | } |
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978 | //namespace asap |
---|