1 | #include <iostream> |
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2 | #include <fstream> |
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3 | |
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4 | #include <casa/BasicSL/String.h> |
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5 | #include <casa/Arrays/Vector.h> |
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6 | #include <casa/Arrays/Matrix.h> |
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7 | #include <casa/Arrays/Cube.h> |
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8 | #include <casa/Arrays/ArrayMath.h> |
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9 | #include <casa/Arrays/ArrayIter.h> |
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10 | #include <casa/Quanta/Quantum.h> |
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11 | #include <casa/Quanta/QuantumHolder.h> |
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12 | #include <casa/Utilities/CountedPtr.h> |
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13 | #include <casa/Logging/LogIO.h> |
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14 | |
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15 | #include <tables/Tables/Table.h> |
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16 | #include <tables/Tables/TableRecord.h> |
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17 | #include <tables/Tables/ExprNode.h> |
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18 | #include <tables/Tables/ScalarColumn.h> |
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19 | #include <tables/Tables/ArrayColumn.h> |
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20 | #include <tables/Tables/TableIter.h> |
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21 | |
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22 | #include <measures/Measures/MDirection.h> |
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23 | |
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24 | #include <MathUtils.h> |
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25 | |
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26 | #include "STGrid.h" |
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27 | |
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28 | using namespace std ; |
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29 | using namespace casa ; |
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30 | using namespace asap ; |
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31 | |
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32 | namespace asap { |
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33 | |
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34 | // constructor |
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35 | STGrid::STGrid() |
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36 | { |
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37 | init() ; |
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38 | } |
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39 | |
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40 | STGrid::STGrid( const string infile ) |
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41 | { |
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42 | init() ; |
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43 | |
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44 | setFileIn( infile ) ; |
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45 | } |
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46 | |
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47 | void STGrid::init() |
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48 | { |
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49 | ifno_ = -1 ; |
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50 | nx_ = -1 ; |
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51 | ny_ = -1 ; |
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52 | npol_ = 0 ; |
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53 | nchan_ = 0 ; |
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54 | nrow_ = 0 ; |
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55 | cellx_ = 0.0 ; |
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56 | celly_ = 0.0 ; |
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57 | center_ = Vector<Double> ( 2, 0.0 ) ; |
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58 | convType_ = "BOX" ; |
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59 | wtype_ = "UNIFORM" ; |
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60 | convSupport_ = -1 ; |
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61 | userSupport_ = -1 ; |
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62 | convSampling_ = 100 ; |
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63 | nprocessed_ = 0 ; |
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64 | nchunk_ = 0 ; |
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65 | } |
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66 | |
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67 | void STGrid::setFileIn( const string infile ) |
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68 | { |
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69 | String name( infile ) ; |
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70 | if ( infile_.compare( name ) != 0 ) { |
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71 | infile_ = String( infile ) ; |
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72 | tab_ = Table( infile_ ) ; |
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73 | } |
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74 | } |
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75 | |
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76 | void STGrid::setPolList( vector<unsigned int> pols ) |
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77 | { |
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78 | pollist_.assign( Vector<uInt>( pols ) ) ; |
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79 | cout << "pollist_ = " << pollist_ << endl ; |
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80 | } |
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81 | |
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82 | void STGrid::setScanList( vector<unsigned int> scans ) |
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83 | { |
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84 | scanlist_.assign( Vector<uInt>( scans ) ) ; |
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85 | cout << "scanlist_ = " << scanlist_ << endl ; |
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86 | } |
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87 | |
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88 | void STGrid::setWeight( const string wType ) |
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89 | { |
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90 | wtype_ = String( wType ) ; |
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91 | wtype_.upcase() ; |
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92 | cout << "wtype_ = " << wtype_ << endl ; |
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93 | } |
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94 | |
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95 | void STGrid::defineImage( int nx, |
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96 | int ny, |
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97 | string scellx, |
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98 | string scelly, |
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99 | string scenter ) |
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100 | { |
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101 | ROArrayColumn<Double> dirCol( tab_, "DIRECTION" ) ; |
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102 | Matrix<Double> direction = dirCol.getColumn() ; |
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103 | Double rmax, rmin, dmax, dmin ; |
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104 | minMax( rmin, rmax, direction.row( 0 ) ) ; |
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105 | minMax( dmin, dmax, direction.row( 1 ) ) ; |
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106 | |
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107 | Int npx = (Int)nx ; |
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108 | Int npy = (Int)ny ; |
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109 | String cellx( scellx ) ; |
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110 | String celly( scelly ) ; |
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111 | String center( scenter ) ; |
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112 | setupGrid( npx, npy, |
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113 | cellx, celly, |
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114 | rmin, rmax, |
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115 | dmin, dmax, |
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116 | center ) ; |
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117 | } |
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118 | |
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119 | void STGrid::setFunc( string convType, |
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120 | int convSupport ) |
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121 | { |
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122 | convType_ = String( convType ) ; |
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123 | convType_.upcase() ; |
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124 | userSupport_ = (Int)convSupport ; |
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125 | } |
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126 | |
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127 | #define NEED_UNDERSCORES |
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128 | #if defined(NEED_UNDERSCORES) |
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129 | #define ggridsd ggridsd_ |
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130 | #endif |
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131 | extern "C" { |
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132 | void ggridsd(Double*, |
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133 | const Complex*, |
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134 | Int*, |
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135 | Int*, |
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136 | Int*, |
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137 | const Int*, |
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138 | const Int*, |
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139 | const Float*, |
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140 | Int*, |
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141 | Int*, |
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142 | Complex*, |
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143 | Float*, |
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144 | Int*, |
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145 | Int*, |
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146 | Int *, |
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147 | Int *, |
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148 | Int*, |
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149 | Int*, |
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150 | Float*, |
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151 | Int*, |
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152 | Int*, |
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153 | Double*); |
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154 | } |
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155 | void STGrid::gridPerRow() |
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156 | { |
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157 | LogIO os( LogOrigin("STGrid", "gridPerRow", WHERE) ) ; |
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158 | double t0, t1 ; |
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159 | |
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160 | // grid parameter |
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161 | os << LogIO::DEBUGGING ; |
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162 | os << "----------" << endl ; |
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163 | os << "Grid parameter summary" << endl ; |
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164 | os << " (nx,ny) = (" << nx_ << "," << ny_ << ")" << endl ; |
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165 | os << " (cellx,celly) = (" << cellx_ << "," << celly_ << ")" << endl ; |
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166 | os << " center = " << center_ << endl ; |
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167 | os << "----------" << LogIO::POST ; |
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168 | os << LogIO::NORMAL ; |
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169 | |
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170 | // boolean for getStorage |
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171 | Bool deletePos, deleteData, deleteWgt, deleteFlag, deleteFlagR, deleteConv, deleteDataG, deleteWgtG ; |
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172 | |
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173 | // convolution kernel |
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174 | Vector<Float> convFunc ; |
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175 | t0 = mathutil::gettimeofday_sec() ; |
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176 | setConvFunc( convFunc ) ; |
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177 | t1 = mathutil::gettimeofday_sec() ; |
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178 | os << "setConvFunc: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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179 | //cout << "convSupport=" << convSupport_ << endl ; |
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180 | //cout << "convFunc=" << convFunc << endl ; |
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181 | |
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182 | // grid data |
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183 | Int gnx = nx_ ; |
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184 | Int gny = ny_ ; |
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185 | // Extend grid plane with convSupport_ |
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186 | // Int gnx = nx_+convSupport_*2 ; |
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187 | // Int gny = ny_+convSupport_*2 ; |
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188 | IPosition gshape( 4, gnx, gny, npol_, nchan_ ) ; |
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189 | Array<Complex> gdataArrC( gshape, 0.0 ) ; |
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190 | // 2011/12/20 TN |
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191 | // data_ and gwgtArr share storage |
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192 | data_.resize( gshape ) ; |
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193 | data_ = 0.0 ; |
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194 | Array<Float> gwgtArr( data_ ) ; |
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195 | |
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196 | // data storage |
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197 | Int irow = -1 ; |
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198 | IPosition cshape( 3, npol_, nchan_, nchunk_ ) ; |
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199 | IPosition mshape( 2, npol_, nchunk_ ) ; |
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200 | IPosition vshape( 1, nchunk_ ) ; |
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201 | IPosition dshape( 2, 2, nchunk_ ) ; |
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202 | IPosition wshape( 2, nchan_, nchunk_ ) ; |
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203 | Array<Complex> spectra( cshape ) ; |
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204 | Array<Double> direction( dshape ) ; |
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205 | Array<Int> flagtra( cshape ) ; |
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206 | //Array<Int> rflag( mshape ) ; |
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207 | Array<Int> rflag( vshape ) ; |
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208 | Array<Float> weight( wshape ) ; |
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209 | Array<Double> xypos( dshape ) ; |
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210 | |
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211 | // parameters for gridding |
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212 | Int idopsf = 0 ; |
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213 | Int *chanMap = new Int[nchan_] ; |
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214 | { |
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215 | Int *work_p = chanMap ; |
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216 | for ( Int i = 0 ; i < nchan_ ; i++ ) { |
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217 | *work_p = i ; |
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218 | work_p++ ; |
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219 | } |
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220 | } |
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221 | Int *polMap = new Int[npol_] ; |
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222 | { |
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223 | Int *work_p = polMap ; |
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224 | for ( Int i = 0 ; i < npol_ ; i++ ) { |
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225 | *work_p = i ; |
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226 | work_p++ ; |
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227 | } |
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228 | } |
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229 | Double *sumw_p = new Double[npol_*nchan_] ; |
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230 | { |
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231 | Double *work_p = sumw_p ; |
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232 | for ( Int i = 0 ; i < npol_*nchan_ ; i++ ) { |
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233 | *work_p = 0.0 ; |
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234 | work_p++ ; |
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235 | } |
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236 | } |
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237 | |
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238 | // for performance check |
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239 | double eGetDataChunk = 0.0 ; |
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240 | double eToPixel = 0.0 ; |
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241 | double eGGridSD = 0.0 ; |
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242 | |
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243 | // prepare pointer |
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244 | Float *conv_p = convFunc.getStorage( deleteConv ) ; |
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245 | Complex *gdata_p = gdataArrC.getStorage( deleteDataG ) ; |
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246 | Float *wdata_p = gwgtArr.getStorage( deleteWgtG ) ; |
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247 | const Complex *data_p = spectra.getStorage( deleteData ) ; |
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248 | const Float *wgt_p = weight.getStorage( deleteWgt ) ; |
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249 | const Int *flag_p = flagtra.getStorage( deleteFlag ) ; |
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250 | const Int *rflag_p = rflag.getStorage( deleteFlagR ) ; |
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251 | Double *xypos_p = xypos.getStorage( deletePos ) ; |
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252 | |
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253 | while( !pastEnd() ) { |
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254 | // retrieve data |
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255 | t0 = mathutil::gettimeofday_sec() ; |
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256 | Int nrow = getDataChunk( spectra, direction, flagtra, rflag, weight ) ; |
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257 | //os << "nrow = " << nrow << LogIO::POST ; |
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258 | t1 = mathutil::gettimeofday_sec() ; |
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259 | eGetDataChunk += t1-t0 ; |
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260 | |
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261 | // world -> pixel |
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262 | t0 = mathutil::gettimeofday_sec() ; |
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263 | toPixel( direction, xypos ) ; |
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264 | t1 = mathutil::gettimeofday_sec() ; |
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265 | eToPixel += t1-t0 ; |
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266 | |
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267 | // call ggridsd |
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268 | irow = -1 ; |
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269 | t0 = mathutil::gettimeofday_sec() ; |
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270 | ggridsd( xypos_p, |
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271 | data_p, |
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272 | &npol_, |
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273 | &nchan_, |
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274 | &idopsf, |
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275 | flag_p, |
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276 | rflag_p, |
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277 | wgt_p, |
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278 | &nrow, |
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279 | &irow, |
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280 | gdata_p, |
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281 | wdata_p, |
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282 | &gnx, |
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283 | &gny, |
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284 | &npol_, |
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285 | &nchan_, |
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286 | &convSupport_, |
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287 | &convSampling_, |
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288 | conv_p, |
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289 | chanMap, |
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290 | polMap, |
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291 | sumw_p ) ; |
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292 | t1 = mathutil::gettimeofday_sec() ; |
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293 | eGGridSD += t1-t0 ; |
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294 | |
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295 | } |
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296 | os << "getDataChunk: elapsed time is " << eGetDataChunk << " sec." << LogIO::POST ; |
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297 | os << "toPixel: elapsed time is " << eToPixel << " sec." << LogIO::POST ; |
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298 | os << "ggridsd: elapsed time is " << eGGridSD << " sec." << LogIO::POST ; |
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299 | |
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300 | |
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301 | // finalization |
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302 | convFunc.putStorage( conv_p, deleteConv ) ; |
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303 | gdataArrC.putStorage( gdata_p, deleteDataG ) ; |
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304 | gwgtArr.putStorage( wdata_p, deleteWgtG ) ; |
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305 | xypos.putStorage( xypos_p, deletePos ) ; |
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306 | spectra.freeStorage( data_p, deleteData ) ; |
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307 | weight.freeStorage( wgt_p, deleteWgt ) ; |
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308 | flagtra.freeStorage( flag_p, deleteFlag ) ; |
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309 | rflag.freeStorage( rflag_p, deleteFlagR ) ; |
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310 | delete polMap ; |
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311 | delete chanMap ; |
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312 | delete sumw_p ; |
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313 | |
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314 | // set data |
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315 | setData( gdataArrC, gwgtArr ) ; |
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316 | |
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317 | } |
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318 | |
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319 | Bool STGrid::pastEnd() |
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320 | { |
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321 | LogIO os( LogOrigin("STGrid","pastEnd",WHERE) ) ; |
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322 | Bool b = nprocessed_ >= nrow_ ; |
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323 | return b ; |
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324 | } |
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325 | |
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326 | void STGrid::grid() |
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327 | { |
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328 | // data selection |
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329 | selectData() ; |
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330 | setupArray() ; |
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331 | sortData() ; |
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332 | |
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333 | if ( npol_ > 1 ) { |
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334 | LogIO os( LogOrigin("STGrid", "grid", WHERE) ) ; |
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335 | os << LogIO::WARN << "STGrid doesn't support assigning polarization-dependent weight. Use averaged weight over polarization." << LogIO::POST ; |
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336 | } |
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337 | |
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338 | if ( wtype_.compare("UNIFORM") != 0 && |
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339 | wtype_.compare("TINT") != 0 && |
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340 | wtype_.compare("TINTSYS") != 0 ) { |
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341 | LogIO os( LogOrigin("STGrid", "grid", WHERE) ) ; |
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342 | os << LogIO::WARN << "Unsupported weight type '" << wtype_ << "', apply UNIFORM weight" << LogIO::POST ; |
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343 | wtype_ = "UNIFORM" ; |
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344 | } |
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345 | |
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346 | Bool doAll = examine() ; |
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347 | |
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348 | if ( doAll ) |
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349 | gridAll() ; |
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350 | else |
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351 | gridPerRow() ; |
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352 | } |
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353 | |
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354 | Bool STGrid::examine() |
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355 | { |
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356 | // TODO: nchunk_ must be determined from nchan_, npol_, and (nx_,ny_) |
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357 | // by considering data size to be allocated for ggridsd input/output |
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358 | nchunk_ = 100 ; |
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359 | Bool b = nchunk_ >= nrow_ ; |
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360 | return b ; |
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361 | } |
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362 | |
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363 | void STGrid::gridAll() |
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364 | { |
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365 | LogIO os( LogOrigin("STGrid", "grid", WHERE) ) ; |
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366 | |
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367 | // retrieve data |
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368 | Array<Complex> spectra ; |
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369 | Array<Double> direction ; |
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370 | Array<Int> flagtra ; |
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371 | Array<Int> rflag ; |
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372 | Array<Float> weight ; |
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373 | double t0, t1 ; |
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374 | t0 = mathutil::gettimeofday_sec() ; |
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375 | getData( spectra, direction, flagtra, rflag, weight ) ; |
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376 | t1 = mathutil::gettimeofday_sec() ; |
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377 | os << "getData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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378 | IPosition sshape = spectra.shape() ; |
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379 | //os << "spectra.shape()=" << spectra.shape() << LogIO::POST ; |
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380 | //os << "max(spectra) = " << max(spectra) << LogIO::POST ; |
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381 | //os << "weight = " << weight << LogIO::POST ; |
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382 | |
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383 | // grid parameter |
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384 | os << LogIO::DEBUGGING ; |
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385 | os << "----------" << endl ; |
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386 | os << "Grid parameter summary" << endl ; |
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387 | os << " (nx,ny) = (" << nx_ << "," << ny_ << ")" << endl ; |
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388 | os << " (cellx,celly) = (" << cellx_ << "," << celly_ << ")" << endl ; |
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389 | os << " center = " << center_ << endl ; |
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390 | os << "----------" << LogIO::POST ; |
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391 | os << LogIO::NORMAL ; |
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392 | |
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393 | // convolution kernel |
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394 | Vector<Float> convFunc ; |
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395 | t0 = mathutil::gettimeofday_sec() ; |
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396 | setConvFunc( convFunc ) ; |
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397 | t1 = mathutil::gettimeofday_sec() ; |
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398 | os << "setConvFunc: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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399 | //cout << "convSupport=" << convSupport_ << endl ; |
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400 | //cout << "convFunc=" << convFunc << endl ; |
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401 | |
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402 | // world -> pixel |
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403 | Array<Double> xypos( direction.shape(), 0.0 ) ; |
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404 | t0 = mathutil::gettimeofday_sec() ; |
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405 | toPixel( direction, xypos ) ; |
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406 | t1 = mathutil::gettimeofday_sec() ; |
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407 | //os << "xypos=" << xypos << LogIO::POST ; |
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408 | os << "toPixel: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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409 | |
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410 | // call ggridsd |
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411 | Bool deletePos, deleteData, deleteWgt, deleteFlag, deleteFlagR, deleteConv, deleteDataG, deleteWgtG ; |
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412 | Double *xypos_p = xypos.getStorage( deletePos ) ; |
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413 | const Complex *data_p = spectra.getStorage( deleteData ) ; |
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414 | const Float *wgt_p = weight.getStorage( deleteWgt ) ; |
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415 | //const Int *flag_p = flagI.getStorage( deleteFlag ) ; |
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416 | //const Int *rflag_p = rflagI.getStorage( deleteFlagR ) ; |
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417 | const Int *flag_p = flagtra.getStorage( deleteFlag ) ; |
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418 | const Int *rflag_p = rflag.getStorage( deleteFlagR ) ; |
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419 | Float *conv_p = convFunc.getStorage( deleteConv ) ; |
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420 | // Extend grid plane with convSupport_ |
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421 | Int gnx = nx_ ; |
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422 | Int gny = ny_ ; |
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423 | // Int gnx = nx_+convSupport_*2 ; |
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424 | // Int gny = ny_+convSupport_*2 ; |
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425 | IPosition gshape( 4, gnx, gny, npol_, nchan_ ) ; |
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426 | Array<Complex> gdataArrC( gshape, 0.0 ) ; |
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427 | //Array<Float> gwgtArr( gshape, 0.0 ) ; |
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428 | // 2011/12/20 TN |
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429 | // data_ and weight array shares storage |
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430 | data_.resize( gshape ) ; |
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431 | data_ = 0.0 ; |
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432 | Array<Float> gwgtArr( data_ ) ; |
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433 | Complex *gdata_p = gdataArrC.getStorage( deleteDataG ) ; |
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434 | Float *wdata_p = gwgtArr.getStorage( deleteWgtG ) ; |
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435 | Int idopsf = 0 ; |
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436 | Int *chanMap = new Int[nchan_] ; |
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437 | { |
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438 | Int *work_p = chanMap ; |
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439 | for ( Int i = 0 ; i < nchan_ ; i++ ) { |
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440 | *work_p = i ; |
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441 | work_p++ ; |
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442 | } |
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443 | } |
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444 | Int *polMap = new Int[npol_] ; |
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445 | { |
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446 | Int *work_p = polMap ; |
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447 | for ( Int i = 0 ; i < npol_ ; i++ ) { |
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448 | *work_p = i ; |
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449 | work_p++ ; |
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450 | } |
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451 | } |
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452 | Double *sumw_p = new Double[npol_*nchan_] ; |
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453 | { |
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454 | Double *work_p = sumw_p ; |
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455 | for ( Int i = 0 ; i < npol_*nchan_ ; i++ ) { |
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456 | *work_p = 0.0 ; |
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457 | work_p++ ; |
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458 | } |
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459 | } |
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460 | t0 = mathutil::gettimeofday_sec() ; |
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461 | Int irow = -1 ; |
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462 | ggridsd( xypos_p, |
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463 | data_p, |
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464 | &npol_, |
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465 | &nchan_, |
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466 | &idopsf, |
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467 | flag_p, |
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468 | rflag_p, |
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469 | wgt_p, |
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470 | &nrow_, |
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471 | &irow, |
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472 | gdata_p, |
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473 | wdata_p, |
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474 | &gnx, |
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475 | &gny, |
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476 | &npol_, |
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477 | &nchan_, |
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478 | &convSupport_, |
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479 | &convSampling_, |
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480 | conv_p, |
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481 | chanMap, |
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482 | polMap, |
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483 | sumw_p ) ; |
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484 | t1 = mathutil::gettimeofday_sec() ; |
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485 | os << "ggridsd: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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486 | xypos.putStorage( xypos_p, deletePos ) ; |
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487 | spectra.freeStorage( data_p, deleteData ) ; |
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488 | weight.freeStorage( wgt_p, deleteWgt ) ; |
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489 | flagtra.freeStorage( flag_p, deleteFlag ) ; |
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490 | rflag.freeStorage( rflag_p, deleteFlagR ) ; |
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491 | convFunc.putStorage( conv_p, deleteConv ) ; |
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492 | delete polMap ; |
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493 | delete chanMap ; |
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494 | gdataArrC.putStorage( gdata_p, deleteDataG ) ; |
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495 | gwgtArr.putStorage( wdata_p, deleteWgtG ) ; |
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496 | setData( gdataArrC, gwgtArr ) ; |
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497 | //Matrix<Double> sumWeight( IPosition( 2, npol_, nchan_ ), sumw_p, TAKE_OVER ) ; |
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498 | delete sumw_p ; |
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499 | //cout << "sumWeight = " << sumWeight << endl ; |
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500 | // os << "gdataArr = " << gdataArr << LogIO::POST ; |
---|
501 | // os << "gwgtArr = " << gwgtArr << LogIO::POST ; |
---|
502 | // os << "data_ " << data_ << LogIO::POST ; |
---|
503 | } |
---|
504 | |
---|
505 | void STGrid::setData( Array<Complex> &gdata, |
---|
506 | Array<Float> &gwgt ) |
---|
507 | { |
---|
508 | // 2011/12/20 TN |
---|
509 | // gwgt and data_ share storage |
---|
510 | LogIO os( LogOrigin("STGrid","setData",WHERE) ) ; |
---|
511 | double t0, t1 ; |
---|
512 | t0 = mathutil::gettimeofday_sec() ; |
---|
513 | uInt len = data_.nelements() ; |
---|
514 | const Complex *w1_p ; |
---|
515 | Float *w2_p ; |
---|
516 | Bool b1, b2 ; |
---|
517 | const Complex *gdata_p = gdata.getStorage( b1 ) ; |
---|
518 | Float *gwgt_p = data_.getStorage( b2 ) ; |
---|
519 | w1_p = gdata_p ; |
---|
520 | w2_p = gwgt_p ; |
---|
521 | for ( uInt i = 0 ; i < len ; i++ ) { |
---|
522 | if ( *w2_p > 0.0 ) *w2_p = (*w1_p).real() / *w2_p ; |
---|
523 | w1_p++ ; |
---|
524 | w2_p++ ; |
---|
525 | } |
---|
526 | gdata.freeStorage( gdata_p, b1 ) ; |
---|
527 | data_.putStorage( gwgt_p, b2 ) ; |
---|
528 | t1 = mathutil::gettimeofday_sec() ; |
---|
529 | os << "setData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
---|
530 | } |
---|
531 | |
---|
532 | void STGrid::setupGrid( Int &nx, |
---|
533 | Int &ny, |
---|
534 | String &cellx, |
---|
535 | String &celly, |
---|
536 | Double &xmin, |
---|
537 | Double &xmax, |
---|
538 | Double &ymin, |
---|
539 | Double &ymax, |
---|
540 | String ¢er ) |
---|
541 | { |
---|
542 | LogIO os( LogOrigin("STGrid","setupGrid",WHERE) ) ; |
---|
543 | //cout << "nx=" << nx << ", ny=" << ny << endl ; |
---|
544 | |
---|
545 | // center position |
---|
546 | if ( center.size() == 0 ) { |
---|
547 | center_(0) = 0.5 * ( xmin + xmax ) ; |
---|
548 | center_(1) = 0.5 * ( ymin + ymax ) ; |
---|
549 | } |
---|
550 | else { |
---|
551 | String::size_type pos0 = center.find( " " ) ; |
---|
552 | if ( pos0 == String::npos ) { |
---|
553 | throw AipsError( "bad string format in parameter center" ) ; |
---|
554 | } |
---|
555 | String::size_type pos1 = center.find( " ", pos0+1 ) ; |
---|
556 | String typestr, xstr, ystr ; |
---|
557 | if ( pos1 != String::npos ) { |
---|
558 | typestr = center.substr( 0, pos0 ) ; |
---|
559 | xstr = center.substr( pos0+1, pos1-pos0 ) ; |
---|
560 | ystr = center.substr( pos1+1 ) ; |
---|
561 | // todo: convert to J2000 (or direction ref for DIRECTION column) |
---|
562 | } |
---|
563 | else { |
---|
564 | typestr = "J2000" ; |
---|
565 | xstr = center.substr( 0, pos0 ) ; |
---|
566 | ystr = center.substr( pos0+1 ) ; |
---|
567 | } |
---|
568 | QuantumHolder qh ; |
---|
569 | String err ; |
---|
570 | qh.fromString( err, xstr ) ; |
---|
571 | Quantum<Double> xcen = qh.asQuantumDouble() ; |
---|
572 | qh.fromString( err, ystr ) ; |
---|
573 | Quantum<Double> ycen = qh.asQuantumDouble() ; |
---|
574 | center_(0) = xcen.getValue( "rad" ) ; |
---|
575 | center_(1) = ycen.getValue( "rad" ) ; |
---|
576 | } |
---|
577 | |
---|
578 | |
---|
579 | nx_ = nx ; |
---|
580 | ny_ = ny ; |
---|
581 | if ( nx < 0 && ny > 0 ) { |
---|
582 | nx_ = ny ; |
---|
583 | ny_ = ny ; |
---|
584 | } |
---|
585 | if ( ny < 0 && nx > 0 ) { |
---|
586 | nx_ = nx ; |
---|
587 | ny_ = nx ; |
---|
588 | } |
---|
589 | |
---|
590 | //Double wx = xmax - xmin ; |
---|
591 | //Double wy = ymax - ymin ; |
---|
592 | Double wx = max( abs(xmax-center_(0)), abs(xmin-center_(0)) ) * 2 ; |
---|
593 | Double wy = max( abs(ymax-center_(1)), abs(ymin-center_(1)) ) * 2 ; |
---|
594 | // take 10% margin |
---|
595 | wx *= 1.10 ; |
---|
596 | wy *= 1.10 ; |
---|
597 | |
---|
598 | Quantum<Double> qcellx ; |
---|
599 | Quantum<Double> qcelly ; |
---|
600 | //cout << "nx_ = " << nx_ << ", ny_ = " << ny_ << endl ; |
---|
601 | if ( cellx.size() != 0 && celly.size() != 0 ) { |
---|
602 | readQuantity( qcellx, cellx ) ; |
---|
603 | readQuantity( qcelly, celly ) ; |
---|
604 | } |
---|
605 | else if ( celly.size() != 0 ) { |
---|
606 | os << "Using celly to x-axis..." << LogIO::POST ; |
---|
607 | readQuantity( qcelly, celly ) ; |
---|
608 | qcellx = qcelly ; |
---|
609 | } |
---|
610 | else if ( cellx.size() != 0 ) { |
---|
611 | os << "Using cellx to y-axis..." << LogIO::POST ; |
---|
612 | readQuantity( qcellx, cellx ) ; |
---|
613 | qcelly = qcellx ; |
---|
614 | } |
---|
615 | else { |
---|
616 | if ( nx_ < 0 ) { |
---|
617 | os << "No user preference in grid setting. Using default..." << LogIO::POST ; |
---|
618 | readQuantity( qcellx, "1.0arcmin" ) ; |
---|
619 | qcelly = qcellx ; |
---|
620 | } |
---|
621 | else { |
---|
622 | if ( wx == 0.0 ) { |
---|
623 | os << "Using default spatial extent (10arcmin) in x" << LogIO::POST ; |
---|
624 | wx = 0.00290888 ; |
---|
625 | } |
---|
626 | if ( wy == 0.0 ) { |
---|
627 | os << "Using default spatial extent (10arcmin) in y" << LogIO::POST ; |
---|
628 | wy = 0.00290888 ; |
---|
629 | } |
---|
630 | qcellx = Quantum<Double>( wx/nx_, "rad" ) ; |
---|
631 | qcelly = Quantum<Double>( wy/ny_, "rad" ) ; |
---|
632 | } |
---|
633 | } |
---|
634 | cellx_ = qcellx.getValue( "rad" ) ; |
---|
635 | celly_ = qcelly.getValue( "rad" ) ; |
---|
636 | if ( nx_ < 0 ) { |
---|
637 | if ( wx == 0.0 ) { |
---|
638 | os << "Using default spatial extent (10arcmin) in x" << LogIO::POST ; |
---|
639 | wx = 0.00290888 ; |
---|
640 | } |
---|
641 | if ( wy == 0.0 ) { |
---|
642 | os << "Using default spatial extent (10arcmin) in y" << LogIO::POST ; |
---|
643 | wy = 0.00290888 ; |
---|
644 | } |
---|
645 | nx_ = Int( ceil( wx/cellx_ ) ) ; |
---|
646 | ny_ = Int( ceil( wy/celly_ ) ) ; |
---|
647 | } |
---|
648 | } |
---|
649 | |
---|
650 | void STGrid::selectData() |
---|
651 | { |
---|
652 | Int ifno = ifno_ ; |
---|
653 | Table taborg( infile_ ) ; |
---|
654 | if ( ifno == -1 ) { |
---|
655 | LogIO os( LogOrigin("STGrid","selectData",WHERE) ) ; |
---|
656 | // os << LogIO::SEVERE |
---|
657 | // << "Please set IFNO before actual gridding" |
---|
658 | // << LogIO::EXCEPTION ; |
---|
659 | ROScalarColumn<uInt> ifnoCol( taborg, "IFNO" ) ; |
---|
660 | ifno = ifnoCol( 0 ) ; |
---|
661 | os << LogIO::WARN |
---|
662 | << "IFNO is not given. Using default IFNO: " << ifno << LogIO::POST ; |
---|
663 | } |
---|
664 | // tab = taborg( taborg.col("IFNO") == ifno ) ; |
---|
665 | TableExprNode node ; |
---|
666 | node = taborg.col("IFNO") == ifno ; |
---|
667 | if ( scanlist_.size() > 0 ) { |
---|
668 | node = node && taborg.col("SCANNO").in( scanlist_ ) ; |
---|
669 | } |
---|
670 | tab_ = taborg( node ) ; |
---|
671 | if ( tab_.nrow() == 0 ) { |
---|
672 | LogIO os( LogOrigin("STGrid","selectData",WHERE) ) ; |
---|
673 | os << LogIO::SEVERE |
---|
674 | << "No corresponding rows for given selection: IFNO " << ifno ; |
---|
675 | if ( scanlist_.size() > 0 ) |
---|
676 | os << " SCANNO " << scanlist_ ; |
---|
677 | os << LogIO::EXCEPTION ; |
---|
678 | } |
---|
679 | attach() ; |
---|
680 | } |
---|
681 | |
---|
682 | void STGrid::attach() |
---|
683 | { |
---|
684 | // attach to table |
---|
685 | spectraCol_.attach( tab_, "SPECTRA" ) ; |
---|
686 | flagtraCol_.attach( tab_, "FLAGTRA" ) ; |
---|
687 | directionCol_.attach( tab_, "DIRECTION" ) ; |
---|
688 | flagRowCol_.attach( tab_, "FLAGROW" ) ; |
---|
689 | tsysCol_.attach( tab_, "TSYS" ) ; |
---|
690 | intervalCol_.attach( tab_, "INTERVAL" ) ; |
---|
691 | } |
---|
692 | |
---|
693 | void STGrid::getData( Array<Complex> &spectra, |
---|
694 | Array<Double> &direction, |
---|
695 | Array<uChar> &flagtra, |
---|
696 | Array<uInt> &rflag, |
---|
697 | Array<Float> &weight ) |
---|
698 | { |
---|
699 | LogIO os( LogOrigin("STGrid","getData",WHERE) ) ; |
---|
700 | // os << "start" << LogIO::POST ; |
---|
701 | // os << "npol_ = " << npol_ << LogIO::POST ; |
---|
702 | // os << "nchan_ = " << nchan_ << LogIO::POST ; |
---|
703 | // os << "nrow_ = " << nrow_ << LogIO::POST ; |
---|
704 | IPosition cshape( 3, npol_, nchan_, nrow_ ) ; |
---|
705 | IPosition mshape( 2, npol_, nrow_ ) ; |
---|
706 | IPosition vshape( 1, nrow_ ) ; |
---|
707 | spectra.resize( cshape ) ; |
---|
708 | flagtra.resize( cshape ) ; |
---|
709 | rflag.resize( vshape ) ; |
---|
710 | Vector<uInt> rflagPerPol( rflag ) ; |
---|
711 | direction.resize( IPosition(2,2,nrow_) ) ; |
---|
712 | Array<Float> tsys( cshape ) ; |
---|
713 | Array<Double> tint( mshape ) ; |
---|
714 | |
---|
715 | ArrayIterator<uChar> fli( flagtra, IPosition(2,1,2) ) ; |
---|
716 | ArrayIterator<Float> tsi( tsys, IPosition(2,1,2) ) ; |
---|
717 | ArrayIterator<Double> tii( tint, IPosition(1,1) ) ; |
---|
718 | |
---|
719 | // boolean for pointer access |
---|
720 | Bool bsp, bsps ; |
---|
721 | // pointer to the data |
---|
722 | Complex *sp_p = spectra.getStorage( bsp ) ; |
---|
723 | // working pointer |
---|
724 | Complex *wsp_p = sp_p ; |
---|
725 | uInt len = nchan_ * nrow_ ; |
---|
726 | IPosition mshape2( 2, nchan_, nrow_ ) ; |
---|
727 | Vector<Float> spSlice( nchan_ ) ; |
---|
728 | const Float *sps_p = spSlice.getStorage( bsps ) ; |
---|
729 | long cincr = npol_ ; |
---|
730 | long rincr = npol_ * nchan_ ; |
---|
731 | for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) { |
---|
732 | Table subt = tab_( tab_.col("POLNO") == pollist_[ipol] ) ; |
---|
733 | ROArrayColumn<Float> spectraCol( subt, "SPECTRA" ) ; |
---|
734 | ROArrayColumn<Double> directionCol( subt, "DIRECTION" ) ; |
---|
735 | ROArrayColumn<uChar> flagtraCol( subt, "FLAGTRA" ) ; |
---|
736 | ROScalarColumn<uInt> rflagCol( subt, "FLAGROW" ) ; |
---|
737 | ROArrayColumn<Float> tsysCol( subt, "TSYS" ) ; |
---|
738 | ROScalarColumn<Double> tintCol( subt, "INTERVAL" ) ; |
---|
739 | for ( Int irow = 0 ; irow < nrow_ ; irow++ ) { |
---|
740 | spectraCol.get( irow, spSlice ) ; |
---|
741 | const Float *wsps_p = sps_p ; |
---|
742 | wsp_p = sp_p + (long)ipol + rincr * (long)irow ; |
---|
743 | for ( Int ichan = 0 ; ichan < nchan_ ; ichan++ ) { |
---|
744 | *wsp_p = *wsps_p ; |
---|
745 | wsps_p++ ; |
---|
746 | wsp_p += cincr ; |
---|
747 | } |
---|
748 | } |
---|
749 | Array<uChar> flSlice = fli.array() ; |
---|
750 | flagtraCol.getColumn( flSlice ) ; |
---|
751 | if ( ipol == 0 ) { |
---|
752 | directionCol.getColumn( direction ) ; |
---|
753 | rflagCol.getColumn( rflagPerPol ) ; |
---|
754 | } |
---|
755 | else { |
---|
756 | rflagPerPol += rflagCol.getColumn() ; |
---|
757 | } |
---|
758 | Vector<Float> tmpF = tsysCol( 0 ) ; |
---|
759 | Array<Float> tsSlice = tsi.array() ; |
---|
760 | if ( tmpF.nelements() == (uInt)nchan_ ) { |
---|
761 | tsysCol.getColumn( tsSlice ) ; |
---|
762 | } |
---|
763 | else { |
---|
764 | tsSlice = tmpF( 0 ) ; |
---|
765 | } |
---|
766 | Vector<Double> tmpD = tii.array() ; |
---|
767 | tintCol.getColumn( tmpD ) ; |
---|
768 | |
---|
769 | wsp_p += len ; |
---|
770 | |
---|
771 | fli.next() ; |
---|
772 | tsi.next() ; |
---|
773 | tii.next() ; |
---|
774 | } |
---|
775 | spSlice.freeStorage( sps_p, bsps ) ; |
---|
776 | spectra.putStorage( sp_p, bsp ) ; |
---|
777 | |
---|
778 | // os << "spectra=" << spectra << LogIO::POST ; |
---|
779 | // os << "flagtra=" << flagtra << LogIO::POST ; |
---|
780 | // os << "rflag=" << rflag << LogIO::POST ; |
---|
781 | // os << "direction=" << direction << LogIO::POST ; |
---|
782 | |
---|
783 | weight.resize( IPosition(2,nchan_,nrow_) ) ; |
---|
784 | getWeight( weight, tsys, tint ) ; |
---|
785 | } |
---|
786 | |
---|
787 | void STGrid::getData( Array<Complex> &spectra, |
---|
788 | Array<Double> &direction, |
---|
789 | Array<Int> &flagtra, |
---|
790 | Array<Int> &rflag, |
---|
791 | Array<Float> &weight ) |
---|
792 | { |
---|
793 | LogIO os( LogOrigin("STGrid","getData",WHERE) ) ; |
---|
794 | double t0, t1 ; |
---|
795 | |
---|
796 | Array<uChar> flagUC ; |
---|
797 | Array<uInt> rflagUI ; |
---|
798 | getData( spectra, direction, flagUC, rflagUI, weight ) ; |
---|
799 | |
---|
800 | t0 = mathutil::gettimeofday_sec() ; |
---|
801 | toInt( flagUC, flagtra ) ; |
---|
802 | toInt( rflagUI, rflag ) ; |
---|
803 | t1 = mathutil::gettimeofday_sec() ; |
---|
804 | os << "toInt: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
---|
805 | } |
---|
806 | |
---|
807 | Int STGrid::getDataChunk( Array<Complex> &spectra, |
---|
808 | Array<Double> &direction, |
---|
809 | Array<Int> &flagtra, |
---|
810 | Array<Int> &rflag, |
---|
811 | Array<Float> &weight ) |
---|
812 | { |
---|
813 | Array<Float> spFloat( spectra.shape() ) ; |
---|
814 | Array<uChar> fluChar( flagtra.shape() ) ; |
---|
815 | Array<uInt> fruInt( rflag.shape() ) ; |
---|
816 | Int nrow = getDataChunk( spFloat, direction, fluChar, fruInt, weight ) ; |
---|
817 | convertArray( spectra, spFloat ) ; |
---|
818 | convertArray( flagtra, fluChar ) ; |
---|
819 | convertArray( rflag, fruInt ) ; |
---|
820 | |
---|
821 | return nrow ; |
---|
822 | } |
---|
823 | |
---|
824 | Int STGrid::getDataChunk( Array<Float> &spectra, |
---|
825 | Array<Double> &direction, |
---|
826 | Array<uChar> &flagtra, |
---|
827 | Array<uInt> &rflag, |
---|
828 | Array<Float> &weight ) |
---|
829 | { |
---|
830 | LogIO os( LogOrigin("STGrid","getDataChunk",WHERE) ) ; |
---|
831 | Int nrow = min( spectra.shape()[2], nrow_-nprocessed_ ) ; |
---|
832 | Array<Float> tsys( spectra.shape() ) ; |
---|
833 | //Array<Double> tint( rflag.shape() ) ; |
---|
834 | Array<Double> tint( IPosition(2,spectra.shape()[0],spectra.shape()[2]) ) ; |
---|
835 | IPosition m( 2, 0, 2 ) ; |
---|
836 | IPosition v( 1, 0 ) ; |
---|
837 | ArrayIterator<Float> spi( spectra, m, False ) ; |
---|
838 | ArrayIterator<uChar> fli( flagtra, m, False ) ; |
---|
839 | ArrayIterator<Float> tsi( tsys, m, False ) ; |
---|
840 | ArrayIterator<Double> di( direction, v ) ; |
---|
841 | Bool bfr, bti ; |
---|
842 | uInt *fr_p = rflag.getStorage( bfr ) ; |
---|
843 | Double *ti_p = tint.getStorage( bti ) ; |
---|
844 | uInt *wfr_p = fr_p ; |
---|
845 | Double *wti_p = ti_p ; |
---|
846 | Int offset = nprocessed_ * npol_ ; |
---|
847 | for ( Int irow = 0 ; irow < npol_ * nrow ; irow++ ) { |
---|
848 | Array<Float> spSlice = spi.array() ; |
---|
849 | Array<uChar> flSlice = fli.array() ; |
---|
850 | Array<Float> tsSlice = tsi.array() ; |
---|
851 | |
---|
852 | uInt idx = rows_[offset+irow] ; |
---|
853 | spectraCol_.get( idx, spSlice ) ; |
---|
854 | |
---|
855 | flagtraCol_.get( idx, flSlice ) ; |
---|
856 | Vector<Float> tmpF = tsysCol_( idx ) ; |
---|
857 | if ( tmpF.nelements() == (uInt)nchan_ ) { |
---|
858 | tsSlice = tmpF ; |
---|
859 | } |
---|
860 | else { |
---|
861 | tsSlice = tmpF[0] ; |
---|
862 | } |
---|
863 | *wti_p = intervalCol_( idx ) ; |
---|
864 | |
---|
865 | spi.next() ; |
---|
866 | fli.next() ; |
---|
867 | tsi.next() ; |
---|
868 | wti_p++ ; |
---|
869 | } |
---|
870 | tint.putStorage( ti_p, bti ) ; |
---|
871 | |
---|
872 | for ( Int irow = 0 ; irow < nrow ; irow += npol_ ) { |
---|
873 | uInt idx = rows_[offset+irow] ; |
---|
874 | directionCol_.get( idx, di.array() ) ; |
---|
875 | di.next() ; |
---|
876 | |
---|
877 | *wfr_p = flagRowCol_( idx ) ; |
---|
878 | for ( Int ipol = 1 ; ipol < npol_ ; ipol++ ) { |
---|
879 | *wfr_p = max( *wfr_p, flagRowCol_( rows_[offset+irow+ipol] ) ) ; |
---|
880 | } |
---|
881 | wfr_p++ ; |
---|
882 | } |
---|
883 | rflag.putStorage( fr_p, bfr ) ; |
---|
884 | |
---|
885 | getWeight( weight, tsys, tint ) ; |
---|
886 | |
---|
887 | nprocessed_ += nrow ; |
---|
888 | |
---|
889 | return nrow ; |
---|
890 | } |
---|
891 | |
---|
892 | void STGrid::setupArray() |
---|
893 | { |
---|
894 | LogIO os( LogOrigin("STGrid","setupArray",WHERE) ) ; |
---|
895 | ROScalarColumn<uInt> polnoCol( tab_, "POLNO" ) ; |
---|
896 | Vector<uInt> pols = polnoCol.getColumn() ; |
---|
897 | //os << pols << LogIO::POST ; |
---|
898 | Vector<uInt> pollistOrg ; |
---|
899 | uInt npolOrg = 0 ; |
---|
900 | uInt polno ; |
---|
901 | for ( uInt i = 0 ; i < polnoCol.nrow() ; i++ ) { |
---|
902 | //polno = polnoCol( i ) ; |
---|
903 | polno = pols( i ) ; |
---|
904 | if ( allNE( pollistOrg, polno ) ) { |
---|
905 | pollistOrg.resize( npolOrg+1, True ) ; |
---|
906 | pollistOrg[npolOrg] = polno ; |
---|
907 | npolOrg++ ; |
---|
908 | } |
---|
909 | } |
---|
910 | if ( pollist_.size() == 0 ) |
---|
911 | pollist_ = pollistOrg ; |
---|
912 | else { |
---|
913 | Vector<uInt> newlist ; |
---|
914 | uInt newsize = 0 ; |
---|
915 | for ( uInt i = 0 ; i < pollist_.size() ; i++ ) { |
---|
916 | if ( anyEQ( pollistOrg, pollist_[i] ) ) { |
---|
917 | newlist.resize( newsize+1, True ) ; |
---|
918 | newlist[newsize] = pollist_[i] ; |
---|
919 | newsize++ ; |
---|
920 | } |
---|
921 | } |
---|
922 | pollist_.assign( newlist ) ; |
---|
923 | } |
---|
924 | npol_ = pollist_.size() ; |
---|
925 | if ( npol_ == 0 ) { |
---|
926 | os << LogIO::SEVERE << "Empty pollist" << LogIO::EXCEPTION ; |
---|
927 | } |
---|
928 | nrow_ = tab_.nrow() / npolOrg ; |
---|
929 | ROArrayColumn<uChar> tmpCol( tab_, "FLAGTRA" ) ; |
---|
930 | nchan_ = tmpCol( 0 ).nelements() ; |
---|
931 | // os << "npol_ = " << npol_ << "(" << pollist_ << ")" << endl |
---|
932 | // << "nchan_ = " << nchan_ << endl |
---|
933 | // << "nrow_ = " << nrow_ << LogIO::POST ; |
---|
934 | } |
---|
935 | |
---|
936 | void STGrid::getWeight( Array<Float> &w, |
---|
937 | Array<Float> &tsys, |
---|
938 | Array<Double> &tint ) |
---|
939 | { |
---|
940 | LogIO os( LogOrigin("STGrid","getWeight",WHERE) ) ; |
---|
941 | // double t0, t1 ; |
---|
942 | // t0 = mathutil::gettimeofday_sec() ; |
---|
943 | // resize |
---|
944 | IPosition refShape = tsys.shape() ; |
---|
945 | Int nchan = refShape[1] ; |
---|
946 | Int nrow = refShape[2] ; |
---|
947 | |
---|
948 | // set weight |
---|
949 | if ( wtype_.compare( "UNIFORM" ) == 0 ) { |
---|
950 | w = 1.0 ; |
---|
951 | } |
---|
952 | else if ( wtype_.compare( "TINT" ) == 0 ) { |
---|
953 | Bool b0, b1 ; |
---|
954 | Float *w_p = w.getStorage( b0 ) ; |
---|
955 | Float *w0_p = w_p ; |
---|
956 | const Double *ti_p = tint.getStorage( b1 ) ; |
---|
957 | const Double *w1_p = ti_p ; |
---|
958 | for ( Int irow = 0 ; irow < nrow ; irow++ ) { |
---|
959 | Float val = (Float)(polMean( w1_p )) ; |
---|
960 | for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) { |
---|
961 | *w0_p = val ; |
---|
962 | w0_p++ ; |
---|
963 | } |
---|
964 | } |
---|
965 | w.putStorage( w_p, b0 ) ; |
---|
966 | tint.freeStorage( ti_p, b1 ) ; |
---|
967 | } |
---|
968 | else if ( wtype_.compare( "TSYS" ) == 0 ) { |
---|
969 | Bool b0, b1 ; |
---|
970 | Float *w_p = w.getStorage( b0 ) ; |
---|
971 | Float *w0_p = w_p ; |
---|
972 | const Float *ts_p = tsys.getStorage( b1 ) ; |
---|
973 | const Float *w1_p = ts_p ; |
---|
974 | for ( Int irow = 0 ; irow < nrow ; irow++ ) { |
---|
975 | for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) { |
---|
976 | Float val = polMean( w1_p ) ; |
---|
977 | *w0_p = 1.0 / ( val * val ) ; |
---|
978 | w0_p++ ; |
---|
979 | } |
---|
980 | } |
---|
981 | w.putStorage( w_p, b0 ) ; |
---|
982 | tsys.freeStorage( ts_p, b1 ) ; |
---|
983 | } |
---|
984 | else if ( wtype_.compare( "TINTSYS" ) == 0 ) { |
---|
985 | Bool b0, b1, b2 ; |
---|
986 | Float *w_p = w.getStorage( b0 ) ; |
---|
987 | Float *w0_p = w_p ; |
---|
988 | const Double *ti_p = tint.getStorage( b1 ) ; |
---|
989 | const Double *w1_p = ti_p ; |
---|
990 | const Float *ts_p = tsys.getStorage( b2 ) ; |
---|
991 | const Float *w2_p = ts_p ; |
---|
992 | for ( Int irow = 0 ; irow < nrow ; irow++ ) { |
---|
993 | Float interval = (Float)(polMean( w1_p )) ; |
---|
994 | for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) { |
---|
995 | Float temp = polMean( w2_p ) ; |
---|
996 | *w0_p = interval / ( temp * temp ) ; |
---|
997 | w0_p++ ; |
---|
998 | } |
---|
999 | } |
---|
1000 | w.putStorage( w_p, b0 ) ; |
---|
1001 | tint.freeStorage( ti_p, b1 ) ; |
---|
1002 | tsys.freeStorage( ts_p, b2 ) ; |
---|
1003 | } |
---|
1004 | else { |
---|
1005 | //LogIO os( LogOrigin("STGrid", "getWeight", WHERE) ) ; |
---|
1006 | //os << LogIO::WARN << "Unsupported weight type '" << wtype_ << "', apply UNIFORM weight" << LogIO::POST ; |
---|
1007 | w = 1.0 ; |
---|
1008 | } |
---|
1009 | |
---|
1010 | // t1 = mathutil::gettimeofday_sec() ; |
---|
1011 | // os << "getWeight: elapsed time is " << t1-t0 << " sec" << LogIO::POST ; |
---|
1012 | } |
---|
1013 | |
---|
1014 | Float STGrid::polMean( const Float *p ) |
---|
1015 | { |
---|
1016 | Float v = 0.0 ; |
---|
1017 | for ( Int i = 0 ; i < npol_ ; i++ ) { |
---|
1018 | v += *p ; |
---|
1019 | p++ ; |
---|
1020 | } |
---|
1021 | v /= npol_ ; |
---|
1022 | return v ; |
---|
1023 | } |
---|
1024 | |
---|
1025 | Double STGrid::polMean( const Double *p ) |
---|
1026 | { |
---|
1027 | Double v = 0.0 ; |
---|
1028 | for ( Int i = 0 ; i < npol_ ; i++ ) { |
---|
1029 | v += *p ; |
---|
1030 | p++ ; |
---|
1031 | } |
---|
1032 | v /= npol_ ; |
---|
1033 | return v ; |
---|
1034 | } |
---|
1035 | |
---|
1036 | void STGrid::toInt( Array<uChar> &u, Array<Int> &v ) |
---|
1037 | { |
---|
1038 | uInt len = u.nelements() ; |
---|
1039 | Int *int_p = new Int[len] ; |
---|
1040 | Bool deleteIt ; |
---|
1041 | const uChar *data_p = u.getStorage( deleteIt ) ; |
---|
1042 | Int *i_p = int_p ; |
---|
1043 | const uChar *u_p = data_p ; |
---|
1044 | for ( uInt i = 0 ; i < len ; i++ ) { |
---|
1045 | *i_p = ( *u_p == 0 ) ? 0 : 1 ; |
---|
1046 | i_p++ ; |
---|
1047 | u_p++ ; |
---|
1048 | } |
---|
1049 | u.freeStorage( data_p, deleteIt ) ; |
---|
1050 | v.takeStorage( u.shape(), int_p, TAKE_OVER ) ; |
---|
1051 | } |
---|
1052 | |
---|
1053 | void STGrid::toInt( Array<uInt> &u, Array<Int> &v ) |
---|
1054 | { |
---|
1055 | uInt len = u.nelements() ; |
---|
1056 | Int *int_p = new Int[len] ; |
---|
1057 | Bool deleteIt ; |
---|
1058 | const uInt *data_p = u.getStorage( deleteIt ) ; |
---|
1059 | Int *i_p = int_p ; |
---|
1060 | const uInt *u_p = data_p ; |
---|
1061 | for ( uInt i = 0 ; i < len ; i++ ) { |
---|
1062 | *i_p = ( *u_p == 0 ) ? 0 : 1 ; |
---|
1063 | i_p++ ; |
---|
1064 | u_p++ ; |
---|
1065 | } |
---|
1066 | u.freeStorage( data_p, deleteIt ) ; |
---|
1067 | v.takeStorage( u.shape(), int_p, TAKE_OVER ) ; |
---|
1068 | } |
---|
1069 | |
---|
1070 | void STGrid::toPixel( Array<Double> &world, Array<Double> &pixel ) |
---|
1071 | { |
---|
1072 | // gridding will be done on (nx_+2*convSupport_) x (ny_+2*convSupport_) |
---|
1073 | // grid plane to avoid unexpected behavior on grid edge |
---|
1074 | Block<Double> pixc( 2 ) ; |
---|
1075 | pixc[0] = Double( nx_-1 ) * 0.5 ; |
---|
1076 | pixc[1] = Double( ny_-1 ) * 0.5 ; |
---|
1077 | // pixc[0] = Double( nx_+2*convSupport_-1 ) * 0.5 ; |
---|
1078 | // pixc[1] = Double( ny_+2*convSupport_-1 ) * 0.5 ; |
---|
1079 | uInt nrow = world.shape()[1] ; |
---|
1080 | Bool bw, bp ; |
---|
1081 | const Double *w_p = world.getStorage( bw ) ; |
---|
1082 | Double *p_p = pixel.getStorage( bp ) ; |
---|
1083 | const Double *ww_p = w_p ; |
---|
1084 | Double *wp_p = p_p ; |
---|
1085 | for ( uInt i = 0 ; i < nrow ; i++ ) { |
---|
1086 | *wp_p = pixc[0] + ( *ww_p - center_[0] ) / cellx_ ; |
---|
1087 | wp_p++ ; |
---|
1088 | ww_p++ ; |
---|
1089 | *wp_p = pixc[1] + ( *ww_p - center_[1] ) / celly_ ; |
---|
1090 | wp_p++ ; |
---|
1091 | ww_p++ ; |
---|
1092 | } |
---|
1093 | world.freeStorage( w_p, bw ) ; |
---|
1094 | pixel.putStorage( p_p, bp ) ; |
---|
1095 | // String gridfile = "grid."+convType_+"."+String::toString(convSupport_)+".dat" ; |
---|
1096 | // ofstream ofs( gridfile.c_str(), ios::out ) ; |
---|
1097 | // ofs << "center " << center_(0) << " " << pixc(0) |
---|
1098 | // << " " << center_(1) << " " << pixc(1) << endl ; |
---|
1099 | // for ( uInt irow = 0 ; irow < nrow ; irow++ ) { |
---|
1100 | // ofs << irow ; |
---|
1101 | // for ( uInt i = 0 ; i < 2 ; i++ ) { |
---|
1102 | // ofs << " " << world(i, irow) << " " << pixel(i, irow) ; |
---|
1103 | // } |
---|
1104 | // ofs << endl ; |
---|
1105 | // } |
---|
1106 | // ofs.close() ; |
---|
1107 | } |
---|
1108 | |
---|
1109 | void STGrid::boxFunc( Vector<Float> &convFunc, Int &convSize ) |
---|
1110 | { |
---|
1111 | convFunc = 0.0 ; |
---|
1112 | for ( Int i = 0 ; i < convSize/2 ; i++ ) |
---|
1113 | convFunc(i) = 1.0 ; |
---|
1114 | } |
---|
1115 | |
---|
1116 | #define NEED_UNDERSCORES |
---|
1117 | #if defined(NEED_UNDERSCORES) |
---|
1118 | #define grdsf grdsf_ |
---|
1119 | #endif |
---|
1120 | extern "C" { |
---|
1121 | void grdsf(Double*, Double*); |
---|
1122 | } |
---|
1123 | void STGrid::spheroidalFunc( Vector<Float> &convFunc ) |
---|
1124 | { |
---|
1125 | convFunc = 0.0 ; |
---|
1126 | for ( Int i = 0 ; i < convSampling_*convSupport_ ; i++ ) { |
---|
1127 | Double nu = Double(i) / Double(convSupport_*convSampling_) ; |
---|
1128 | Double val ; |
---|
1129 | grdsf( &nu, &val ) ; |
---|
1130 | convFunc(i) = ( 1.0 - nu * nu ) * val ; |
---|
1131 | } |
---|
1132 | } |
---|
1133 | |
---|
1134 | void STGrid::gaussFunc( Vector<Float> &convFunc ) |
---|
1135 | { |
---|
1136 | convFunc = 0.0 ; |
---|
1137 | // HWHM of the Gaussian is convSupport_ / 4 |
---|
1138 | // To take into account Gaussian tail, kernel cutoff is set to 4 * HWHM |
---|
1139 | Int len = convSampling_ * convSupport_ ; |
---|
1140 | Double hwhm = len * 0.25 ; |
---|
1141 | for ( Int i = 0 ; i < len ; i++ ) { |
---|
1142 | Double val = Double(i) / hwhm ; |
---|
1143 | convFunc(i) = exp( -log(2)*val*val ) ; |
---|
1144 | } |
---|
1145 | } |
---|
1146 | |
---|
1147 | void STGrid::pbFunc( Vector<Float> &convFunc ) |
---|
1148 | { |
---|
1149 | convFunc = 0.0 ; |
---|
1150 | } |
---|
1151 | |
---|
1152 | void STGrid::setConvFunc( Vector<Float> &convFunc ) |
---|
1153 | { |
---|
1154 | convSupport_ = userSupport_ ; |
---|
1155 | if ( convType_ == "BOX" ) { |
---|
1156 | if ( convSupport_ < 0 ) |
---|
1157 | convSupport_ = 0 ; |
---|
1158 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
---|
1159 | convFunc.resize( convSize ) ; |
---|
1160 | boxFunc( convFunc, convSize ) ; |
---|
1161 | } |
---|
1162 | else if ( convType_ == "SF" ) { |
---|
1163 | if ( convSupport_ < 0 ) |
---|
1164 | convSupport_ = 3 ; |
---|
1165 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
---|
1166 | convFunc.resize( convSize ) ; |
---|
1167 | spheroidalFunc( convFunc ) ; |
---|
1168 | } |
---|
1169 | else if ( convType_ == "GAUSS" ) { |
---|
1170 | // to take into account Gaussian tail |
---|
1171 | if ( convSupport_ < 0 ) |
---|
1172 | convSupport_ = 12 ; // 3 * 4 |
---|
1173 | else { |
---|
1174 | convSupport_ = userSupport_ * 4 ; |
---|
1175 | } |
---|
1176 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
---|
1177 | convFunc.resize( convSize ) ; |
---|
1178 | gaussFunc( convFunc ) ; |
---|
1179 | } |
---|
1180 | else if ( convType_ == "PB" ) { |
---|
1181 | if ( convSupport_ < 0 ) |
---|
1182 | convSupport_ = 0 ; |
---|
1183 | pbFunc( convFunc ) ; |
---|
1184 | } |
---|
1185 | else { |
---|
1186 | throw AipsError( "Unsupported convolution function" ) ; |
---|
1187 | } |
---|
1188 | } |
---|
1189 | |
---|
1190 | string STGrid::saveData( string outfile ) |
---|
1191 | { |
---|
1192 | LogIO os( LogOrigin("STGrid", "saveData", WHERE) ) ; |
---|
1193 | double t0, t1 ; |
---|
1194 | t0 = mathutil::gettimeofday_sec() ; |
---|
1195 | |
---|
1196 | //Int polno = 0 ; |
---|
1197 | String outfile_ ; |
---|
1198 | if ( outfile.size() == 0 ) { |
---|
1199 | if ( infile_.lastchar() == '/' ) { |
---|
1200 | outfile_ = infile_.substr( 0, infile_.size()-1 ) ; |
---|
1201 | } |
---|
1202 | else { |
---|
1203 | outfile_ = infile_ ; |
---|
1204 | } |
---|
1205 | outfile_ += ".grid" ; |
---|
1206 | } |
---|
1207 | else { |
---|
1208 | outfile_ = outfile ; |
---|
1209 | } |
---|
1210 | Table tab ; |
---|
1211 | prepareTable( tab, outfile_ ) ; |
---|
1212 | IPosition dshape = data_.shape() ; |
---|
1213 | Int nrow = nx_ * ny_ * npol_ ; |
---|
1214 | tab.rwKeywordSet().define( "nPol", npol_ ) ; |
---|
1215 | tab.addRow( nrow ) ; |
---|
1216 | Vector<Double> cpix( 2 ) ; |
---|
1217 | cpix(0) = Double( nx_ - 1 ) * 0.5 ; |
---|
1218 | cpix(1) = Double( ny_ - 1 ) * 0.5 ; |
---|
1219 | Vector<Double> dir( 2 ) ; |
---|
1220 | ArrayColumn<Double> directionCol( tab, "DIRECTION" ) ; |
---|
1221 | ArrayColumn<Float> spectraCol( tab, "SPECTRA" ) ; |
---|
1222 | ScalarColumn<uInt> polnoCol( tab, "POLNO" ) ; |
---|
1223 | Int irow = 0 ; |
---|
1224 | Vector<Float> sp( nchan_ ) ; |
---|
1225 | Bool bsp, bdata ; |
---|
1226 | const Float *data_p = data_.getStorage( bdata ) ; |
---|
1227 | Float *wsp_p, *sp_p ; |
---|
1228 | const Float *wdata_p = data_p ; |
---|
1229 | long step = nx_ * ny_ * npol_ ; |
---|
1230 | long offset ; |
---|
1231 | for ( Int iy = 0 ; iy < ny_ ; iy++ ) { |
---|
1232 | dir(1) = center_(1) - ( cpix(1) - (Double)iy ) * celly_ ; |
---|
1233 | for ( Int ix = 0 ; ix < nx_ ; ix++ ) { |
---|
1234 | dir(0) = center_(0) - ( cpix(0) - (Double)ix ) * cellx_ ; |
---|
1235 | for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) { |
---|
1236 | offset = ix + iy * nx_ + ipol * nx_ * ny_ ; |
---|
1237 | //os << "offset = " << offset << LogIO::POST ; |
---|
1238 | sp_p = sp.getStorage( bsp ) ; |
---|
1239 | wsp_p = sp_p ; |
---|
1240 | wdata_p = data_p + offset ; |
---|
1241 | for ( Int ichan = 0 ; ichan < nchan_ ; ichan++ ) { |
---|
1242 | *wsp_p = *wdata_p ; |
---|
1243 | wsp_p++ ; |
---|
1244 | wdata_p += step ; |
---|
1245 | } |
---|
1246 | sp.putStorage( sp_p, bsp ) ; |
---|
1247 | spectraCol.put( irow, sp ) ; |
---|
1248 | directionCol.put( irow, dir ) ; |
---|
1249 | polnoCol.put( irow, pollist_[ipol] ) ; |
---|
1250 | irow++ ; |
---|
1251 | } |
---|
1252 | } |
---|
1253 | } |
---|
1254 | data_.freeStorage( data_p, bdata ) ; |
---|
1255 | |
---|
1256 | t1 = mathutil::gettimeofday_sec() ; |
---|
1257 | os << "saveData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
---|
1258 | |
---|
1259 | return outfile_ ; |
---|
1260 | } |
---|
1261 | |
---|
1262 | void STGrid::prepareTable( Table &tab, String &name ) |
---|
1263 | { |
---|
1264 | Table t( infile_, Table::Old ) ; |
---|
1265 | t.deepCopy( name, Table::New, False, t.endianFormat(), True ) ; |
---|
1266 | tab = Table( name, Table::Update ) ; |
---|
1267 | } |
---|
1268 | |
---|
1269 | void STGrid::sortData() |
---|
1270 | { |
---|
1271 | LogIO os( LogOrigin("STGRid","sortData",WHERE) ) ; |
---|
1272 | double t0, t1 ; |
---|
1273 | t0 = mathutil::gettimeofday_sec() ; |
---|
1274 | rows_.resize( npol_*nrow_ ) ; |
---|
1275 | Table tab = tab_( tab_.col("POLNO").in(pollist_) ) ; |
---|
1276 | Block<String> cols( 2 ) ; |
---|
1277 | cols[0] = "TIME" ; |
---|
1278 | cols[1] = "BEAMNO" ; |
---|
1279 | TableIterator iter( tab, cols ) ; |
---|
1280 | uInt idx = 0 ; |
---|
1281 | while( !iter.pastEnd() ) { |
---|
1282 | Table t = iter.table().sort( "POLNO" ) ; |
---|
1283 | Vector<uInt> rows = t.rowNumbers() ; |
---|
1284 | //os << "rows=" << rows << LogIO::POST ; |
---|
1285 | for ( uInt i = 0 ; i < rows.nelements() ; i++ ) { |
---|
1286 | rows_[idx] = rows[i] ; |
---|
1287 | idx++ ; |
---|
1288 | } |
---|
1289 | iter.next() ; |
---|
1290 | } |
---|
1291 | t1 = mathutil::gettimeofday_sec() ; |
---|
1292 | os << "sortData: elapsed time is " << t1-t0 << " sec" << LogIO::POST ; |
---|
1293 | //os << "rows_ = " << rows_ << LogIO::POST ; |
---|
1294 | } |
---|
1295 | } |
---|