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/ArrayPartMath.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 | |
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21 | #include <measures/Measures/MDirection.h> |
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22 | |
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23 | #include <Scantable.h> |
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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 | } |
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64 | |
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65 | void STGrid::setFileIn( const string infile ) |
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66 | { |
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67 | String name( infile ) ; |
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68 | if ( infile_.compare( name ) != 0 ) { |
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69 | infile_ = String( infile ) ; |
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70 | tab_ = Table( infile_ ) ; |
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71 | } |
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72 | } |
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73 | |
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74 | void STGrid::setPolList( vector<unsigned int> pols ) |
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75 | { |
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76 | pollist_.assign( Vector<uInt>( pols ) ) ; |
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77 | cout << "pollist_ = " << pollist_ << endl ; |
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78 | } |
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79 | |
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80 | void STGrid::setScanList( vector<unsigned int> scans ) |
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81 | { |
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82 | scanlist_.assign( Vector<uInt>( scans ) ) ; |
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83 | cout << "scanlist_ = " << scanlist_ << endl ; |
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84 | } |
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85 | |
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86 | void STGrid::setWeight( const string wType ) |
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87 | { |
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88 | wtype_ = String( wType ) ; |
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89 | wtype_.upcase() ; |
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90 | cout << "wtype_ = " << wtype_ << endl ; |
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91 | } |
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92 | |
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93 | void STGrid::defineImage( int nx, |
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94 | int ny, |
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95 | string scellx, |
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96 | string scelly, |
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97 | string scenter ) |
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98 | { |
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99 | ROArrayColumn<Double> dirCol( tab_, "DIRECTION" ) ; |
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100 | Matrix<Double> direction = dirCol.getColumn() ; |
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101 | Double rmax, rmin, dmax, dmin ; |
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102 | minMax( rmin, rmax, direction.row( 0 ) ) ; |
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103 | minMax( dmin, dmax, direction.row( 1 ) ) ; |
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104 | |
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105 | Int npx = (Int)nx ; |
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106 | Int npy = (Int)ny ; |
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107 | String cellx( scellx ) ; |
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108 | String celly( scelly ) ; |
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109 | String center( scenter ) ; |
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110 | setupGrid( npx, npy, |
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111 | cellx, celly, |
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112 | rmin, rmax, |
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113 | dmin, dmax, |
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114 | center ) ; |
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115 | } |
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116 | |
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117 | void STGrid::setFunc( string convType, |
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118 | int convSupport ) |
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119 | { |
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120 | convType_ = String( convType ) ; |
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121 | convType_.upcase() ; |
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122 | userSupport_ = (Int)convSupport ; |
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123 | } |
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124 | |
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125 | #define NEED_UNDERSCORES |
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126 | #if defined(NEED_UNDERSCORES) |
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127 | #define ggridsd ggridsd_ |
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128 | #endif |
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129 | extern "C" { |
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130 | void ggridsd(Double*, |
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131 | const Complex*, |
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132 | Int*, |
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133 | Int*, |
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134 | Int*, |
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135 | const Int*, |
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136 | const Int*, |
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137 | const Float*, |
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138 | Int*, |
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139 | Int*, |
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140 | Complex*, |
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141 | Float*, |
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142 | Int*, |
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143 | Int*, |
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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 | Float*, |
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149 | Int*, |
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150 | Int*, |
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151 | Double*); |
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152 | } |
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153 | void STGrid::grid() |
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154 | { |
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155 | LogIO os( LogOrigin("STGrid", "grid", WHERE) ) ; |
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156 | |
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157 | // retrieve data |
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158 | Cube<Float> spectra ; |
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159 | Matrix<Double> direction ; |
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160 | Cube<uChar> flagtra ; |
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161 | Matrix<uInt> rflag ; |
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162 | Matrix<Float> weight ; |
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163 | double t0, t1 ; |
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164 | t0 = mathutil::gettimeofday_sec() ; |
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165 | getData( spectra, direction, flagtra, rflag, weight ) ; |
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166 | t1 = mathutil::gettimeofday_sec() ; |
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167 | os << "getData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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168 | IPosition sshape = spectra.shape() ; |
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169 | //os << "spectra.shape()=" << spectra.shape() << LogIO::POST ; |
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170 | //os << "max(spectra) = " << max(spectra) << LogIO::POST ; |
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171 | //os << "weight = " << weight << LogIO::POST ; |
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172 | |
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173 | // flagtra: uChar -> Int |
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174 | // rflag: uInt -> Int |
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175 | Cube<Int> flagI ; |
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176 | Matrix<Int> rflagI ; |
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177 | t0 = mathutil::gettimeofday_sec() ; |
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178 | toInt( &flagtra, &flagI ) ; |
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179 | toInt( &rflag, &rflagI ) ; |
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180 | t1 = mathutil::gettimeofday_sec() ; |
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181 | os << "toInt: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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182 | |
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183 | // grid parameter |
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184 | os << LogIO::DEBUGGING ; |
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185 | os << "----------" << endl ; |
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186 | os << "Grid parameter summary" << endl ; |
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187 | os << " (nx,ny) = (" << nx_ << "," << ny_ << ")" << endl ; |
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188 | os << " (cellx,celly) = (" << cellx_ << "," << celly_ << ")" << endl ; |
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189 | os << " center = " << center_ << endl ; |
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190 | os << "----------" << LogIO::POST ; |
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191 | os << LogIO::NORMAL ; |
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192 | |
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193 | // convolution kernel |
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194 | Vector<Float> convFunc ; |
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195 | t0 = mathutil::gettimeofday_sec() ; |
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196 | setConvFunc( convFunc ) ; |
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197 | t1 = mathutil::gettimeofday_sec() ; |
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198 | os << "setConvFunc: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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199 | //cout << "convSupport=" << convSupport_ << endl ; |
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200 | //cout << "convFunc=" << convFunc << endl ; |
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201 | |
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202 | // world -> pixel |
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203 | Matrix<Double> xypos( direction.shape(), 0.0 ) ; |
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204 | t0 = mathutil::gettimeofday_sec() ; |
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205 | toPixel( direction, xypos ) ; |
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206 | t1 = mathutil::gettimeofday_sec() ; |
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207 | os << "toPixel: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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208 | |
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209 | // call ggridsd |
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210 | Bool deletePos, deleteData, deleteWgt, deleteFlag, deleteFlagR, deleteConv, deleteDataG, deleteWgtG ; |
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211 | Double *xypos_p = xypos.getStorage( deletePos ) ; |
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212 | Cube<Complex> dataC( spectra.shape(), 0.0 ) ; |
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213 | setReal( dataC, spectra ) ; |
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214 | const Complex *data_p = dataC.getStorage( deleteData ) ; |
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215 | const Float *wgt_p = weight.getStorage( deleteWgt ) ; |
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216 | const Int *flag_p = flagI.getStorage( deleteFlag ) ; |
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217 | const Int *rflag_p = rflagI.getStorage( deleteFlagR ) ; |
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218 | Float *conv_p = convFunc.getStorage( deleteConv ) ; |
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219 | // Extend grid plane with convSupport_ |
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220 | Int gnx = nx_ ; |
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221 | Int gny = ny_ ; |
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222 | // Int gnx = nx_+convSupport_*2 ; |
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223 | // Int gny = ny_+convSupport_*2 ; |
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224 | IPosition gshape( 4, gnx, gny, npol_, nchan_ ) ; |
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225 | Array<Complex> gdataArrC( gshape, 0.0 ) ; |
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226 | Array<Float> gwgtArr( gshape, 0.0 ) ; |
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227 | Complex *gdata_p = gdataArrC.getStorage( deleteDataG ) ; |
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228 | Float *wdata_p = gwgtArr.getStorage( deleteWgtG ) ; |
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229 | Int idopsf = 0 ; |
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230 | Int *chanMap = new Int[nchan_] ; |
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231 | { |
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232 | Int *work_p = chanMap ; |
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233 | for ( Int i = 0 ; i < nchan_ ; i++ ) { |
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234 | *work_p = i ; |
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235 | work_p++ ; |
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236 | } |
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237 | } |
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238 | Int *polMap = new Int[npol_] ; |
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239 | { |
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240 | Int *work_p = polMap ; |
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241 | for ( Int i = 0 ; i < npol_ ; i++ ) { |
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242 | *work_p = i ; |
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243 | work_p++ ; |
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244 | } |
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245 | } |
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246 | Double *sumw_p = new Double[npol_*nchan_] ; |
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247 | { |
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248 | Double *work_p = sumw_p ; |
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249 | for ( Int i = 0 ; i < npol_*nchan_ ; i++ ) { |
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250 | *work_p = 0.0 ; |
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251 | work_p++ ; |
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252 | } |
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253 | } |
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254 | t0 = mathutil::gettimeofday_sec() ; |
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255 | Int irow = -1 ; |
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256 | ggridsd( xypos_p, |
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257 | data_p, |
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258 | &npol_, |
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259 | &nchan_, |
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260 | &idopsf, |
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261 | flag_p, |
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262 | rflag_p, |
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263 | wgt_p, |
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264 | &nrow_, |
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265 | &irow, |
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266 | gdata_p, |
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267 | wdata_p, |
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268 | &gnx, |
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269 | &gny, |
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270 | &npol_, |
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271 | &nchan_, |
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272 | &convSupport_, |
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273 | &convSampling_, |
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274 | conv_p, |
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275 | chanMap, |
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276 | polMap, |
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277 | sumw_p ) ; |
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278 | t1 = mathutil::gettimeofday_sec() ; |
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279 | os << "ggridsd: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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280 | xypos.putStorage( xypos_p, deletePos ) ; |
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281 | dataC.freeStorage( data_p, deleteData ) ; |
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282 | weight.freeStorage( wgt_p, deleteWgt ) ; |
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283 | flagI.freeStorage( flag_p, deleteFlag ) ; |
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284 | rflagI.freeStorage( rflag_p, deleteFlagR ) ; |
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285 | convFunc.putStorage( conv_p, deleteConv ) ; |
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286 | delete polMap ; |
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287 | delete chanMap ; |
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288 | gdataArrC.putStorage( gdata_p, deleteDataG ) ; |
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289 | gwgtArr.putStorage( wdata_p, deleteWgtG ) ; |
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290 | Array<Float> gdataArr = real( gdataArrC ) ; |
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291 | t0 = mathutil::gettimeofday_sec() ; |
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292 | data_.resize( gdataArr.shape() ) ; |
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293 | data_ = 0.0 ; |
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294 | for ( Int ix = 0 ; ix < nx_ ; ix++ ) { |
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295 | for ( Int iy = 0 ; iy < ny_ ; iy++ ) { |
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296 | for ( Int ip = 0 ; ip < npol_ ; ip++ ) { |
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297 | for ( Int ic = 0 ; ic < nchan_ ; ic++ ) { |
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298 | IPosition pos( 4, ix, iy, ip, ic ) ; |
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299 | IPosition gpos( 4, ix, iy, ip, ic ) ; |
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300 | // IPosition gpos( 4, ix+convSupport_, iy+convSupport_, ip, ic ) ; |
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301 | if ( gwgtArr( gpos ) > 0.0 ) |
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302 | data_( pos ) = gdataArr( gpos ) / gwgtArr( gpos ) ; |
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303 | } |
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304 | } |
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305 | } |
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306 | } |
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307 | t1 = mathutil::gettimeofday_sec() ; |
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308 | os << "set data: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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309 | //Matrix<Double> sumWeight( IPosition( 2, npol_, nchan_ ), sumw_p, TAKE_OVER ) ; |
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310 | delete sumw_p ; |
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311 | //cout << "sumWeight = " << sumWeight << endl ; |
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312 | // os << "gdataArr = " << gdataArr << LogIO::POST ; |
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313 | // os << "gwgtArr = " << gwgtArr << LogIO::POST ; |
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314 | // os << "data_ " << data_ << LogIO::POST ; |
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315 | } |
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316 | |
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317 | void STGrid::setupGrid( Int &nx, |
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318 | Int &ny, |
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319 | String &cellx, |
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320 | String &celly, |
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321 | Double &xmin, |
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322 | Double &xmax, |
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323 | Double &ymin, |
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324 | Double &ymax, |
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325 | String ¢er ) |
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326 | { |
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327 | //cout << "nx=" << nx << ", ny=" << ny << endl ; |
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328 | |
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329 | // center position |
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330 | if ( center.size() == 0 ) { |
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331 | center_(0) = 0.5 * ( xmin + xmax ) ; |
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332 | center_(1) = 0.5 * ( ymin + ymax ) ; |
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333 | } |
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334 | else { |
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335 | String::size_type pos0 = center.find( " " ) ; |
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336 | if ( pos0 == String::npos ) { |
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337 | throw AipsError( "bad string format in parameter center" ) ; |
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338 | } |
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339 | String::size_type pos1 = center.find( " ", pos0+1 ) ; |
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340 | String typestr, xstr, ystr ; |
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341 | if ( pos1 != String::npos ) { |
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342 | typestr = center.substr( 0, pos0 ) ; |
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343 | xstr = center.substr( pos0+1, pos1-pos0 ) ; |
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344 | ystr = center.substr( pos1+1 ) ; |
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345 | // todo: convert to J2000 (or direction ref for DIRECTION column) |
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346 | } |
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347 | else { |
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348 | typestr = "J2000" ; |
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349 | xstr = center.substr( 0, pos0 ) ; |
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350 | ystr = center.substr( pos0+1 ) ; |
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351 | } |
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352 | QuantumHolder qh ; |
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353 | String err ; |
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354 | qh.fromString( err, xstr ) ; |
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355 | Quantum<Double> xcen = qh.asQuantumDouble() ; |
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356 | qh.fromString( err, ystr ) ; |
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357 | Quantum<Double> ycen = qh.asQuantumDouble() ; |
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358 | center_(0) = xcen.getValue( "rad" ) ; |
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359 | center_(1) = ycen.getValue( "rad" ) ; |
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360 | } |
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361 | |
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362 | |
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363 | //Double wx = xmax - xmin ; |
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364 | //Double wy = ymax - ymin ; |
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365 | Double wx = max( abs(xmax-center_(0)), abs(xmin-center_(0)) ) * 2 ; |
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366 | Double wy = max( abs(ymax-center_(1)), abs(ymin-center_(1)) ) * 2 ; |
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367 | // take 10% margin |
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368 | wx *= 1.10 ; |
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369 | wy *= 1.10 ; |
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370 | Quantum<Double> qcellx ; |
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371 | Quantum<Double> qcelly ; |
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372 | nx_ = nx ; |
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373 | ny_ = ny ; |
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374 | if ( nx < 0 && ny > 0 ) { |
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375 | nx_ = ny ; |
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376 | ny_ = ny ; |
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377 | } |
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378 | if ( ny < 0 && nx > 0 ) { |
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379 | nx_ = nx ; |
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380 | ny_ = nx ; |
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381 | } |
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382 | //cout << "nx_ = " << nx_ << ", ny_ = " << ny_ << endl ; |
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383 | if ( cellx.size() != 0 && celly.size() != 0 ) { |
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384 | readQuantity( qcellx, cellx ) ; |
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385 | readQuantity( qcelly, celly ) ; |
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386 | } |
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387 | else if ( celly.size() != 0 ) { |
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388 | cout << "Using celly to x-axis..." << endl ; |
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389 | readQuantity( qcelly, celly ) ; |
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390 | qcellx = qcelly ; |
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391 | } |
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392 | else if ( cellx.size() != 0 ) { |
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393 | cout << "Using cellx to y-axis..." << endl ; |
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394 | readQuantity( qcellx, cellx ) ; |
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395 | qcelly = qcellx ; |
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396 | } |
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397 | else { |
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398 | if ( nx_ < 0 ) { |
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399 | cout << "No user preference in grid setting. Using default..." << endl ; |
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400 | readQuantity( qcellx, "1.0arcmin" ) ; |
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401 | qcelly = qcellx ; |
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402 | } |
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403 | else { |
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404 | qcellx = Quantum<Double>( wx/nx_, "rad" ) ; |
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405 | qcelly = Quantum<Double>( wy/ny_, "rad" ) ; |
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406 | } |
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407 | } |
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408 | cellx_ = qcellx.getValue( "rad" ) ; |
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409 | celly_ = qcelly.getValue( "rad" ) ; |
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410 | if ( nx_ < 0 ) { |
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411 | nx_ = Int( ceil( wx/cellx_ ) ) ; |
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412 | ny_ = Int( ceil( wy/celly_ ) ) ; |
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413 | } |
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414 | } |
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415 | |
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416 | void STGrid::selectData( Table &tab ) |
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417 | { |
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418 | Int ifno = ifno_ ; |
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419 | Table taborg( infile_ ) ; |
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420 | if ( ifno == -1 ) { |
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421 | LogIO os( LogOrigin("STGrid","getData",WHERE) ) ; |
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422 | // os << LogIO::SEVERE |
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423 | // << "Please set IFNO before actual gridding" |
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424 | // << LogIO::EXCEPTION ; |
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425 | ROScalarColumn<uInt> ifnoCol( taborg, "IFNO" ) ; |
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426 | ifno = ifnoCol( 0 ) ; |
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427 | os << LogIO::WARN |
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428 | << "IFNO is not given. Using default IFNO: " << ifno << LogIO::POST ; |
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429 | } |
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430 | // tab = taborg( taborg.col("IFNO") == ifno ) ; |
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431 | TableExprNode node ; |
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432 | node = taborg.col("IFNO") == ifno ; |
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433 | if ( scanlist_.size() > 0 ) { |
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434 | node = node && taborg.col("SCANNO").in( scanlist_ ) ; |
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435 | } |
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436 | tab = taborg( node ) ; |
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437 | if ( tab.nrow() == 0 ) { |
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438 | LogIO os( LogOrigin("STGrid","getData",WHERE) ) ; |
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439 | os << LogIO::SEVERE |
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440 | << "No corresponding rows for given selection: IFNO " << ifno |
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441 | << " SCANNO " << scanlist_ |
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442 | << LogIO::EXCEPTION ; |
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443 | } |
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444 | } |
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445 | |
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446 | void STGrid::getData( Cube<Float> &spectra, |
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447 | Matrix<Double> &direction, |
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448 | Cube<uChar> &flagtra, |
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449 | Matrix<uInt> &rflag, |
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450 | Matrix<Float> &weight ) |
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451 | { |
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452 | Table tab ; |
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453 | selectData( tab ) ; |
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454 | ROScalarColumn<uInt> polnoCol( tab, "POLNO" ) ; |
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455 | Vector<uInt> pols = polnoCol.getColumn() ; |
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456 | Vector<uInt> pollistOrg ; |
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457 | uInt npolOrg = 0 ; |
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458 | for ( uInt i = 0 ; i < pols.size() ; i++ ) { |
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459 | if ( allNE( pollistOrg, pols[i] ) ) { |
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460 | pollistOrg.resize( npolOrg+1, True ) ; |
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461 | pollistOrg[npolOrg] = pols[i] ; |
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462 | npolOrg++ ; |
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463 | } |
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464 | } |
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465 | if ( pollist_.size() == 0 ) |
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466 | pollist_ = pollistOrg ; |
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467 | else { |
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468 | Vector<uInt> newlist ; |
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469 | uInt newsize = 0 ; |
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470 | for ( uInt i = 0 ; i < pollist_.size() ; i++ ) { |
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471 | if ( anyEQ( pols, pollist_[i] ) ) { |
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472 | newlist.resize( newsize+1, True ) ; |
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473 | newlist[newsize] = pollist_[i] ; |
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474 | newsize++ ; |
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475 | } |
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476 | } |
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477 | pollist_ = newlist ; |
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478 | } |
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479 | npol_ = pollist_.size() ; |
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480 | ROArrayColumn<uChar> tmpCol( tab, "FLAGTRA" ) ; |
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481 | nchan_ = tmpCol( 0 ).nelements() ; |
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482 | nrow_ = tab.nrow() / npolOrg ; |
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483 | // cout << "npol_ = " << npol_ << endl ; |
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484 | // cout << "nchan_ = " << nchan_ << endl ; |
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485 | // cout << "nrow_ = " << nrow_ << endl ; |
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486 | spectra.resize( npol_, nchan_, nrow_ ) ; |
---|
487 | flagtra.resize( npol_, nchan_, nrow_ ) ; |
---|
488 | rflag.resize( npol_, nrow_ ) ; |
---|
489 | Cube<Float> tsys( npol_, nchan_, nrow_ ) ; |
---|
490 | Matrix<Double> tint( npol_, nrow_ ) ; |
---|
491 | for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) { |
---|
492 | Table subt = tab( tab.col("POLNO") == pollist_[ipol] ) ; |
---|
493 | ROArrayColumn<Float> spectraCol( subt, "SPECTRA" ) ; |
---|
494 | ROArrayColumn<Double> directionCol( subt, "DIRECTION" ) ; |
---|
495 | ROArrayColumn<uChar> flagtraCol( subt, "FLAGTRA" ) ; |
---|
496 | ROScalarColumn<uInt> rflagCol( subt, "FLAGROW" ) ; |
---|
497 | ROArrayColumn<Float> tsysCol( subt, "TSYS" ) ; |
---|
498 | ROScalarColumn<Double> tintCol( subt, "INTERVAL" ) ; |
---|
499 | Matrix<Float> tmpF = spectra.yzPlane( ipol ) ; |
---|
500 | Matrix<uChar> tmpUC = flagtra.yzPlane( ipol ) ; |
---|
501 | Vector<uInt> tmpUI = rflag.row( ipol ) ; |
---|
502 | spectraCol.getColumn( tmpF ) ; |
---|
503 | flagtraCol.getColumn( tmpUC ) ; |
---|
504 | rflagCol.getColumn( tmpUI ) ; |
---|
505 | if ( ipol == 0 ) |
---|
506 | directionCol.getColumn( direction ) ; |
---|
507 | Matrix<Float> tmpF2 = tsysCol.getColumn() ; |
---|
508 | Vector<Double> tmpD = tint.row( ipol ) ; |
---|
509 | if ( tmpF2.shape()(0) == nchan_ ) { |
---|
510 | tsys.yzPlane( ipol ) = tmpF2 ; |
---|
511 | } |
---|
512 | else { |
---|
513 | tsys.yzPlane( ipol ) = tmpF2(0,0) ; |
---|
514 | } |
---|
515 | tintCol.getColumn( tmpD ) ; |
---|
516 | } |
---|
517 | |
---|
518 | getWeight( weight, tsys, tint ) ; |
---|
519 | } |
---|
520 | |
---|
521 | void STGrid::getWeight( Matrix<Float> &w, |
---|
522 | Cube<Float> &tsys, |
---|
523 | Matrix<Double> &tint ) |
---|
524 | { |
---|
525 | // resize |
---|
526 | w.resize( nchan_, nrow_ ) ; |
---|
527 | |
---|
528 | // set weight |
---|
529 | w = 1.0 ; |
---|
530 | Bool warn = False ; |
---|
531 | if ( wtype_.compare( "UNIFORM" ) == 0 ) { |
---|
532 | // do nothing |
---|
533 | } |
---|
534 | else if ( wtype_.compare( "TINT" ) == 0 ) { |
---|
535 | if ( npol_ > 1 ) warn = True ; |
---|
536 | for ( Int irow = 0 ; irow < nrow_ ; irow++ ) { |
---|
537 | Float val = mean( tint.column( irow ) ) ; |
---|
538 | w.column( irow ) = w.column( irow ) * val ; |
---|
539 | } |
---|
540 | } |
---|
541 | else if ( wtype_.compare( "TSYS" ) == 0 ) { |
---|
542 | if ( npol_ > 1 ) warn = True ; |
---|
543 | for ( Int irow = 0 ; irow < nrow_ ; irow++ ) { |
---|
544 | Matrix<Float> arr = tsys.xyPlane( irow ) ; |
---|
545 | for ( Int ichan = 0 ; ichan < nchan_ ; ichan++ ) { |
---|
546 | Float val = mean( arr.column( ichan ) ) ; |
---|
547 | w(ichan,irow) = w(ichan,irow) / ( val * val ) ; |
---|
548 | } |
---|
549 | } |
---|
550 | } |
---|
551 | else if ( wtype_.compare( "TINTSYS" ) == 0 ) { |
---|
552 | if ( npol_ > 1 ) warn = True ; |
---|
553 | for ( Int irow = 0 ; irow < nrow_ ; irow++ ) { |
---|
554 | Float interval = mean( tint.column( irow ) ) ; |
---|
555 | Matrix<Float> arr = tsys.xyPlane( irow ) ; |
---|
556 | for ( Int ichan = 0 ; ichan < nchan_ ; ichan++ ) { |
---|
557 | Float temp = mean( arr.column( ichan ) ) ; |
---|
558 | w(ichan,irow) = w(ichan,irow) * interval / ( temp * temp ) ; |
---|
559 | } |
---|
560 | } |
---|
561 | } |
---|
562 | else { |
---|
563 | LogIO os( LogOrigin("STGrid", "getWeight", WHERE) ) ; |
---|
564 | os << LogIO::WARN << "Unsupported weight type '" << wtype_ << "', apply UNIFORM weight" << LogIO::POST ; |
---|
565 | } |
---|
566 | |
---|
567 | if ( npol_ > 1 ) { |
---|
568 | LogIO os( LogOrigin("STGrid", "getWeight", WHERE) ) ; |
---|
569 | os << LogIO::WARN << "STGrid doesn't support assigning polarization-dependent weight. Use averaged weight over polarization." << LogIO::POST ; |
---|
570 | } |
---|
571 | } |
---|
572 | |
---|
573 | void STGrid::toInt( Array<uChar> *u, Array<Int> *v ) |
---|
574 | { |
---|
575 | uInt len = u->nelements() ; |
---|
576 | Int *int_p = new Int[len] ; |
---|
577 | Bool deleteIt ; |
---|
578 | const uChar *data_p = u->getStorage( deleteIt ) ; |
---|
579 | Int *i_p = int_p ; |
---|
580 | const uChar *u_p = data_p ; |
---|
581 | for ( uInt i = 0 ; i < len ; i++ ) { |
---|
582 | *i_p = ( *u_p == 0 ) ? 0 : 1 ; |
---|
583 | i_p++ ; |
---|
584 | u_p++ ; |
---|
585 | } |
---|
586 | u->freeStorage( data_p, deleteIt ) ; |
---|
587 | v->takeStorage( u->shape(), int_p, TAKE_OVER ) ; |
---|
588 | } |
---|
589 | |
---|
590 | void STGrid::toInt( Array<uInt> *u, Array<Int> *v ) |
---|
591 | { |
---|
592 | uInt len = u->nelements() ; |
---|
593 | Int *int_p = new Int[len] ; |
---|
594 | Bool deleteIt ; |
---|
595 | const uInt *data_p = u->getStorage( deleteIt ) ; |
---|
596 | Int *i_p = int_p ; |
---|
597 | const uInt *u_p = data_p ; |
---|
598 | for ( uInt i = 0 ; i < len ; i++ ) { |
---|
599 | *i_p = ( *u_p == 0 ) ? 0 : 1 ; |
---|
600 | i_p++ ; |
---|
601 | u_p++ ; |
---|
602 | } |
---|
603 | u->freeStorage( data_p, deleteIt ) ; |
---|
604 | v->takeStorage( u->shape(), int_p, TAKE_OVER ) ; |
---|
605 | } |
---|
606 | |
---|
607 | void STGrid::toPixel( Matrix<Double> &world, Matrix<Double> &pixel ) |
---|
608 | { |
---|
609 | // gridding will be done on (nx_+2*convSupport_) x (ny_+2*convSupport_) |
---|
610 | // grid plane to avoid unexpected behavior on grid edge |
---|
611 | Vector<Double> pixc( 2 ) ; |
---|
612 | pixc(0) = Double( nx_-1 ) * 0.5 ; |
---|
613 | pixc(1) = Double( ny_-1 ) * 0.5 ; |
---|
614 | // pixc(0) = Double( nx_+2*convSupport_-1 ) * 0.5 ; |
---|
615 | // pixc(1) = Double( ny_+2*convSupport_-1 ) * 0.5 ; |
---|
616 | uInt nrow = world.shape()[1] ; |
---|
617 | Vector<Double> cell( 2 ) ; |
---|
618 | cell(0) = cellx_ ; |
---|
619 | cell(1) = celly_ ; |
---|
620 | for ( uInt irow = 0 ; irow < nrow ; irow++ ) { |
---|
621 | for ( uInt i = 0 ; i < 2 ; i++ ) { |
---|
622 | pixel( i, irow ) = pixc(i) + ( world(i, irow) - center_(i) ) / cell(i) ; |
---|
623 | } |
---|
624 | } |
---|
625 | // String gridfile = "grid."+convType_+"."+String::toString(convSupport_)+".dat" ; |
---|
626 | // ofstream ofs( gridfile.c_str(), ios::out ) ; |
---|
627 | // ofs << "center " << center_(0) << " " << pixc(0) |
---|
628 | // << " " << center_(1) << " " << pixc(1) << endl ; |
---|
629 | // for ( uInt irow = 0 ; irow < nrow ; irow++ ) { |
---|
630 | // ofs << irow ; |
---|
631 | // for ( uInt i = 0 ; i < 2 ; i++ ) { |
---|
632 | // ofs << " " << world(i, irow) << " " << pixel(i, irow) ; |
---|
633 | // } |
---|
634 | // ofs << endl ; |
---|
635 | // } |
---|
636 | // ofs.close() ; |
---|
637 | } |
---|
638 | |
---|
639 | void STGrid::boxFunc( Vector<Float> &convFunc, Int &convSize ) |
---|
640 | { |
---|
641 | convFunc = 0.0 ; |
---|
642 | for ( Int i = 0 ; i < convSize/2 ; i++ ) |
---|
643 | convFunc(i) = 1.0 ; |
---|
644 | } |
---|
645 | |
---|
646 | #define NEED_UNDERSCORES |
---|
647 | #if defined(NEED_UNDERSCORES) |
---|
648 | #define grdsf grdsf_ |
---|
649 | #endif |
---|
650 | extern "C" { |
---|
651 | void grdsf(Double*, Double*); |
---|
652 | } |
---|
653 | void STGrid::spheroidalFunc( Vector<Float> &convFunc ) |
---|
654 | { |
---|
655 | convFunc = 0.0 ; |
---|
656 | for ( Int i = 0 ; i < convSampling_*convSupport_ ; i++ ) { |
---|
657 | Double nu = Double(i) / Double(convSupport_*convSampling_) ; |
---|
658 | Double val ; |
---|
659 | grdsf( &nu, &val ) ; |
---|
660 | convFunc(i) = ( 1.0 - nu * nu ) * val ; |
---|
661 | } |
---|
662 | } |
---|
663 | |
---|
664 | void STGrid::gaussFunc( Vector<Float> &convFunc ) |
---|
665 | { |
---|
666 | convFunc = 0.0 ; |
---|
667 | // HWHM of the Gaussian is convSupport_ / 4 |
---|
668 | // To take into account Gaussian tail, kernel cutoff is set to 4 * HWHM |
---|
669 | Int len = convSampling_ * convSupport_ ; |
---|
670 | Double hwhm = len * 0.25 ; |
---|
671 | for ( Int i = 0 ; i < len ; i++ ) { |
---|
672 | Double val = Double(i) / hwhm ; |
---|
673 | convFunc(i) = exp( -log(2)*val*val ) ; |
---|
674 | } |
---|
675 | } |
---|
676 | |
---|
677 | void STGrid::pbFunc( Vector<Float> &convFunc ) |
---|
678 | { |
---|
679 | convFunc = 0.0 ; |
---|
680 | } |
---|
681 | |
---|
682 | void STGrid::setConvFunc( Vector<Float> &convFunc ) |
---|
683 | { |
---|
684 | convSupport_ = userSupport_ ; |
---|
685 | if ( convType_ == "BOX" ) { |
---|
686 | if ( convSupport_ < 0 ) |
---|
687 | convSupport_ = 0 ; |
---|
688 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
---|
689 | convFunc.resize( convSize ) ; |
---|
690 | boxFunc( convFunc, convSize ) ; |
---|
691 | } |
---|
692 | else if ( convType_ == "SF" ) { |
---|
693 | if ( convSupport_ < 0 ) |
---|
694 | convSupport_ = 3 ; |
---|
695 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
---|
696 | convFunc.resize( convSize ) ; |
---|
697 | spheroidalFunc( convFunc ) ; |
---|
698 | } |
---|
699 | else if ( convType_ == "GAUSS" ) { |
---|
700 | // to take into account Gaussian tail |
---|
701 | if ( convSupport_ < 0 ) |
---|
702 | convSupport_ = 12 ; // 3 * 4 |
---|
703 | else { |
---|
704 | convSupport_ = userSupport_ * 4 ; |
---|
705 | } |
---|
706 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
---|
707 | convFunc.resize( convSize ) ; |
---|
708 | gaussFunc( convFunc ) ; |
---|
709 | } |
---|
710 | else if ( convType_ == "PB" ) { |
---|
711 | if ( convSupport_ < 0 ) |
---|
712 | convSupport_ = 0 ; |
---|
713 | pbFunc( convFunc ) ; |
---|
714 | } |
---|
715 | else { |
---|
716 | throw AipsError( "Unsupported convolution function" ) ; |
---|
717 | } |
---|
718 | } |
---|
719 | |
---|
720 | string STGrid::saveData( string outfile ) |
---|
721 | { |
---|
722 | //Int polno = 0 ; |
---|
723 | string outfile_ ; |
---|
724 | if ( outfile.size() == 0 ) { |
---|
725 | if ( infile_.lastchar() == '/' ) { |
---|
726 | outfile_ = infile_.substr( 0, infile_.size()-1 ) ; |
---|
727 | } |
---|
728 | else { |
---|
729 | outfile_ = infile_ ; |
---|
730 | } |
---|
731 | outfile_ += ".grid" ; |
---|
732 | } |
---|
733 | else { |
---|
734 | outfile_ = outfile ; |
---|
735 | } |
---|
736 | CountedPtr<Scantable> ref( new Scantable( infile_, Table::Memory ) ) ; |
---|
737 | //cout << "ref->nchan()=" << ref->nchan() << endl ; |
---|
738 | CountedPtr<Scantable> out( new Scantable( *ref, True ) ) ; |
---|
739 | Table tab = out->table() ; |
---|
740 | IPosition dshape = data_.shape() ; |
---|
741 | Int nrow = nx_ * ny_ * npol_ ; |
---|
742 | tab.rwKeywordSet().define( "nPol", npol_ ) ; |
---|
743 | tab.addRow( nrow ) ; |
---|
744 | Vector<Double> cpix( 2 ) ; |
---|
745 | cpix(0) = Double( nx_ - 1 ) * 0.5 ; |
---|
746 | cpix(1) = Double( ny_ - 1 ) * 0.5 ; |
---|
747 | Vector<Double> dir( 2 ) ; |
---|
748 | ArrayColumn<Double> directionCol( tab, "DIRECTION" ) ; |
---|
749 | ArrayColumn<Float> spectraCol( tab, "SPECTRA" ) ; |
---|
750 | ScalarColumn<uInt> polnoCol( tab, "POLNO" ) ; |
---|
751 | Int irow = 0 ; |
---|
752 | for ( Int iy = 0 ; iy < ny_ ; iy++ ) { |
---|
753 | for ( Int ix = 0 ; ix < nx_ ; ix++ ) { |
---|
754 | for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) { |
---|
755 | IPosition start( 4, ix, iy, ipol, 0 ) ; |
---|
756 | IPosition end( 4, ix, iy, ipol, nchan_-1 ) ; |
---|
757 | IPosition inc( 4, 1, 1, 1, 1 ) ; |
---|
758 | Vector<Float> sp = data_( start, end, inc ) ; |
---|
759 | dir(0) = center_(0) - ( cpix(0) - (Double)ix ) * cellx_ ; |
---|
760 | dir(1) = center_(1) - ( cpix(1) - (Double)iy ) * celly_ ; |
---|
761 | spectraCol.put( irow, sp ) ; |
---|
762 | directionCol.put( irow, dir ) ; |
---|
763 | polnoCol.put( irow, pollist_[ipol] ) ; |
---|
764 | irow++ ; |
---|
765 | } |
---|
766 | } |
---|
767 | } |
---|
768 | //cout << "outfile_=" << outfile_ << endl ; |
---|
769 | out->makePersistent( outfile_ ) ; |
---|
770 | |
---|
771 | return outfile_ ; |
---|
772 | } |
---|
773 | |
---|
774 | } |
---|