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