1 | // |
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2 | // C++ Interface: STMath |
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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) 2006 |
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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 | #ifndef ASAPSTMATH_H |
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13 | #define ASAPSTMATH_H |
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14 | |
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15 | #include <string> |
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16 | #include <map> |
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17 | |
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18 | #include <casa/aips.h> |
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19 | #include <casa/Utilities/CountedPtr.h> |
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20 | #include <casa/BasicSL/String.h> |
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21 | #include <casa/Arrays/Vector.h> |
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22 | #include <scimath/Mathematics/InterpolateArray1D.h> |
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23 | |
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24 | #include "Scantable.h" |
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25 | #include "STDefs.h" |
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26 | #include "STPol.h" |
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27 | #include "Logger.h" |
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28 | |
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29 | namespace asap { |
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30 | |
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31 | /** |
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32 | * Mathmatical operations on Scantable objects |
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33 | * @author Malte Marquarding |
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34 | */ |
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35 | class STMath : private Logger { |
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36 | public: |
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37 | // typedef for long method name |
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38 | typedef casa::InterpolateArray1D<casa::Double, |
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39 | casa::Float>::InterpolationMethod imethod; |
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40 | |
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41 | // typedef for std::map |
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42 | typedef std::map<std::string, imethod> imap; |
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43 | |
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44 | /** |
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45 | * whether to operate on the given Scantable or return a new one |
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46 | * @param insitu the toggle for this behaviour |
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47 | */ |
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48 | STMath(bool insitu=true); |
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49 | |
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50 | virtual ~STMath(); |
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51 | |
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52 | /** |
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53 | * get the currnt @attr inistu_ state |
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54 | */ |
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55 | bool insitu() const { return insitu_;}; |
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56 | |
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57 | /** |
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58 | * set the currnt @attr inistu state |
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59 | * @param b the new state |
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60 | */ |
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61 | void setInsitu(bool b) { insitu_ = b; }; |
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62 | |
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63 | |
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64 | /** |
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65 | * average a vector of Scantables |
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66 | * @param in the vector of Scantables to average |
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67 | * @param mask an optional mask to apply on specific weights |
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68 | * @param weight weighting scheme |
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69 | * @param avmode the mode ov averaging. Per "SCAN" or "ALL". |
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70 | * @return a casa::CountedPtr<Scantable> which either holds a new Scantable |
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71 | * or returns the imput pointer. |
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72 | */ |
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73 | casa::CountedPtr<Scantable> |
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74 | average( const std::vector<casa::CountedPtr<Scantable> >& in, |
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75 | const std::vector<bool>& mask = std::vector<bool>(), |
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76 | const std::string& weight = "NONE", |
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77 | const std::string& avmode = "SCAN"); |
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78 | |
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79 | /** |
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80 | * median average a vector of Scantables. See also STMath::average |
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81 | * @param in the Scantable to average |
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82 | * @param mode the averaging mode. Currently only "MEDIAN" |
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83 | * @param avmode the mode ov averaging. Per "SCAN" or "ALL". |
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84 | * @return a casa::CountedPtr<Scantable> which either holds a new Scantable |
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85 | * or returns the imput pointer. |
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86 | */ |
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87 | casa::CountedPtr<Scantable> |
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88 | averageChannel( const casa::CountedPtr<Scantable> & in, |
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89 | const std::string& mode = "MEDIAN", |
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90 | const std::string& avmode = "SCAN"); |
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91 | |
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92 | /** |
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93 | * Average polarisations together. really only useful if only linears are |
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94 | * available. |
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95 | * @param in the input Scantable |
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96 | * @param mask an optional mask if weight allows one |
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97 | * @param weight weighting scheme |
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98 | * @return |
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99 | */ |
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100 | casa::CountedPtr< Scantable > |
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101 | averagePolarisations( const casa::CountedPtr< Scantable > & in, |
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102 | const std::vector<bool>& mask, |
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103 | const std::string& weight ); |
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104 | |
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105 | /** |
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106 | * Average beams together. |
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107 | * @param in the input Scantable |
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108 | * @param mask an optional mask if weight allows one |
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109 | * @param weight weighting scheme |
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110 | * @return |
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111 | */ |
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112 | casa::CountedPtr< Scantable > |
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113 | averageBeams( const casa::CountedPtr< Scantable > & in, |
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114 | const std::vector<bool>& mask, |
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115 | const std::string& weight ); |
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116 | |
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117 | casa::CountedPtr<Scantable> |
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118 | unaryOperate( const casa::CountedPtr<Scantable>& in, float val, |
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119 | const std::string& mode, bool tsys=false ); |
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120 | |
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121 | casa::CountedPtr<Scantable> autoQuotient(const casa::CountedPtr<Scantable>& in, |
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122 | const std::string& mode = "NEAREST", |
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123 | bool preserve = true); |
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124 | |
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125 | casa::CountedPtr<Scantable> quotient( const casa::CountedPtr<Scantable>& on, |
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126 | const casa::CountedPtr<Scantable>& off, |
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127 | bool preserve = true ); |
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128 | |
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129 | casa::CountedPtr<Scantable> |
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130 | freqSwitch( const casa::CountedPtr<Scantable>& in ); |
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131 | |
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132 | std::vector<float> statistic(const casa::CountedPtr<Scantable>& in, |
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133 | const std::vector<bool>& mask, |
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134 | const std::string& which); |
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135 | |
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136 | casa::CountedPtr<Scantable> bin( const casa::CountedPtr<Scantable>& in, |
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137 | int width=5); |
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138 | casa::CountedPtr<Scantable> |
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139 | resample(const casa::CountedPtr<Scantable>& in, |
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140 | const std::string& method, float width); |
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141 | |
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142 | casa::CountedPtr<Scantable> |
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143 | smooth(const casa::CountedPtr<Scantable>& in, const std::string& kernel, |
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144 | float width); |
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145 | |
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146 | casa::CountedPtr<Scantable> |
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147 | gainElevation(const casa::CountedPtr<Scantable>& in, |
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148 | const std::vector<float>& coeff, |
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149 | const std::string& fileName, |
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150 | const std::string& method); |
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151 | casa::CountedPtr<Scantable> |
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152 | convertFlux(const casa::CountedPtr<Scantable>& in, float d, |
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153 | float etaap, float jyperk); |
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154 | |
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155 | casa::CountedPtr<Scantable> opacity(const casa::CountedPtr<Scantable>& in, |
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156 | float tau); |
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157 | |
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158 | casa::CountedPtr<Scantable> |
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159 | merge(const std::vector<casa::CountedPtr<Scantable> >& in); |
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160 | |
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161 | casa::CountedPtr<Scantable> |
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162 | invertPhase( const casa::CountedPtr<Scantable>& in); |
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163 | |
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164 | casa::CountedPtr<Scantable> |
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165 | rotateXYPhase( const casa::CountedPtr<Scantable>& in, float phase); |
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166 | |
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167 | casa::CountedPtr<Scantable> |
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168 | rotateLinPolPhase( const casa::CountedPtr<Scantable>& in, float phase); |
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169 | |
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170 | casa::CountedPtr<Scantable> |
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171 | swapPolarisations(const casa::CountedPtr<Scantable>& in); |
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172 | |
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173 | casa::CountedPtr<Scantable> |
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174 | frequencyAlign( const casa::CountedPtr<Scantable>& in, |
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175 | const std::string& refTime = "", |
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176 | const std::string& method = "cubic" ); |
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177 | |
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178 | casa::CountedPtr<Scantable> |
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179 | convertPolarisation( const casa::CountedPtr<Scantable>& in, |
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180 | const std::string& newtype); |
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181 | |
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182 | casa::CountedPtr<Scantable> |
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183 | mxExtract( const casa::CountedPtr<Scantable>& in, |
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184 | const std::string& srctype = "on"); |
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185 | |
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186 | /** |
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187 | * "hard" flag the data, this flags everything selected in setSelection() |
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188 | * @param frequency the frequency to remove |
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189 | * @param width the number of lags to flag left to the side of the frequency |
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190 | */ |
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191 | casa::CountedPtr<Scantable> |
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192 | lagFlag( const casa::CountedPtr<Scantable>& in, double frequency, |
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193 | double width); |
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194 | |
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195 | private: |
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196 | casa::CountedPtr<Scantable> applyToPol( const casa::CountedPtr<Scantable>& in, |
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197 | STPol::polOperation fptr, |
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198 | casa::Float phase); |
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199 | |
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200 | static imethod stringToIMethod(const std::string& in); |
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201 | static WeightType stringToWeight(const std::string& in); |
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202 | |
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203 | void scaleByVector(casa::Table& in, |
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204 | const casa::Vector<casa::Float>& factor, |
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205 | bool dotsys); |
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206 | |
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207 | void scaleFromAsciiTable(casa::Table& in, const std::string& filename, |
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208 | const std::string& method, |
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209 | const casa::Vector<casa::Float>& xout, |
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210 | bool dotsys); |
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211 | |
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212 | void scaleFromTable(casa::Table& in, const casa::Table& table, |
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213 | const std::string& method, |
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214 | const casa::Vector<casa::Float>& xout, bool dotsys); |
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215 | |
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216 | void convertBrightnessUnits(casa::CountedPtr<Scantable>& in, |
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217 | bool tokelvin, float cfac); |
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218 | |
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219 | casa::CountedPtr< Scantable > |
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220 | getScantable(const casa::CountedPtr< Scantable >& in, bool droprows); |
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221 | |
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222 | casa::MaskedArray<casa::Float> |
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223 | maskedArray( const casa::Vector<casa::Float>& s, |
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224 | const casa::Vector<casa::uChar>& f ); |
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225 | casa::Vector<casa::uChar> |
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226 | flagsFromMA(const casa::MaskedArray<casa::Float>& ma); |
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227 | |
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228 | bool insitu_; |
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229 | }; |
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230 | |
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231 | } |
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232 | #endif |
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