[2356] | 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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[2375] | 9 | #include <casa/Arrays/ArrayIter.h> |
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[2356] | 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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[2361] | 13 | #include <casa/Logging/LogIO.h> |
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[2356] | 14 | |
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| 15 | #include <tables/Tables/Table.h> |
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[2360] | 16 | #include <tables/Tables/TableRecord.h> |
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| 17 | #include <tables/Tables/ExprNode.h> |
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[2356] | 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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[2364] | 23 | #include <MathUtils.h> |
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| 24 | |
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[2356] | 25 | #include "STGrid.h" |
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| 26 | |
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| 27 | using namespace std ; |
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| 28 | using namespace casa ; |
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| 29 | using namespace asap ; |
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| 30 | |
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| 31 | namespace asap { |
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| 32 | |
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| 33 | // constructor |
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| 34 | STGrid::STGrid() |
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| 35 | { |
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| 36 | init() ; |
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| 37 | } |
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| 38 | |
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| 39 | STGrid::STGrid( const string infile ) |
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| 40 | { |
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| 41 | init() ; |
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| 42 | |
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| 43 | setFileIn( infile ) ; |
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| 44 | } |
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| 45 | |
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| 46 | void STGrid::init() |
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| 47 | { |
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[2362] | 48 | ifno_ = -1 ; |
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[2356] | 49 | nx_ = -1 ; |
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| 50 | ny_ = -1 ; |
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[2361] | 51 | npol_ = 0 ; |
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| 52 | nchan_ = 0 ; |
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| 53 | nrow_ = 0 ; |
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[2356] | 54 | cellx_ = 0.0 ; |
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| 55 | celly_ = 0.0 ; |
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| 56 | center_ = Vector<Double> ( 2, 0.0 ) ; |
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| 57 | convType_ = "BOX" ; |
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[2361] | 58 | wtype_ = "UNIFORM" ; |
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[2356] | 59 | convSupport_ = -1 ; |
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| 60 | userSupport_ = -1 ; |
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| 61 | convSampling_ = 100 ; |
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| 62 | } |
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| 63 | |
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| 64 | void STGrid::setFileIn( const string infile ) |
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| 65 | { |
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| 66 | String name( infile ) ; |
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| 67 | if ( infile_.compare( name ) != 0 ) { |
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| 68 | infile_ = String( infile ) ; |
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| 69 | tab_ = Table( infile_ ) ; |
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| 70 | } |
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| 71 | } |
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| 72 | |
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[2360] | 73 | void STGrid::setPolList( vector<unsigned int> pols ) |
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| 74 | { |
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| 75 | pollist_.assign( Vector<uInt>( pols ) ) ; |
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| 76 | cout << "pollist_ = " << pollist_ << endl ; |
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| 77 | } |
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| 78 | |
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[2364] | 79 | void STGrid::setScanList( vector<unsigned int> scans ) |
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| 80 | { |
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| 81 | scanlist_.assign( Vector<uInt>( scans ) ) ; |
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| 82 | cout << "scanlist_ = " << scanlist_ << endl ; |
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| 83 | } |
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| 84 | |
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[2361] | 85 | void STGrid::setWeight( const string wType ) |
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| 86 | { |
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| 87 | wtype_ = String( wType ) ; |
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| 88 | wtype_.upcase() ; |
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| 89 | cout << "wtype_ = " << wtype_ << endl ; |
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| 90 | } |
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| 91 | |
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[2356] | 92 | void STGrid::defineImage( int nx, |
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| 93 | int ny, |
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| 94 | string scellx, |
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| 95 | string scelly, |
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| 96 | string scenter ) |
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| 97 | { |
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| 98 | ROArrayColumn<Double> dirCol( tab_, "DIRECTION" ) ; |
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| 99 | Matrix<Double> direction = dirCol.getColumn() ; |
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| 100 | Double rmax, rmin, dmax, dmin ; |
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| 101 | minMax( rmin, rmax, direction.row( 0 ) ) ; |
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| 102 | minMax( dmin, dmax, direction.row( 1 ) ) ; |
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| 103 | |
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| 104 | Int npx = (Int)nx ; |
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| 105 | Int npy = (Int)ny ; |
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| 106 | String cellx( scellx ) ; |
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| 107 | String celly( scelly ) ; |
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| 108 | String center( scenter ) ; |
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| 109 | setupGrid( npx, npy, |
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| 110 | cellx, celly, |
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| 111 | rmin, rmax, |
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| 112 | dmin, dmax, |
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| 113 | center ) ; |
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| 114 | } |
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| 115 | |
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[2364] | 116 | void STGrid::setFunc( string convType, |
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| 117 | int convSupport ) |
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[2356] | 118 | { |
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| 119 | convType_ = String( convType ) ; |
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| 120 | convType_.upcase() ; |
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| 121 | userSupport_ = (Int)convSupport ; |
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| 122 | } |
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| 123 | |
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| 124 | #define NEED_UNDERSCORES |
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| 125 | #if defined(NEED_UNDERSCORES) |
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| 126 | #define ggridsd ggridsd_ |
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| 127 | #endif |
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| 128 | extern "C" { |
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| 129 | void ggridsd(Double*, |
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| 130 | const Complex*, |
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| 131 | Int*, |
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| 132 | Int*, |
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| 133 | Int*, |
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| 134 | const Int*, |
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| 135 | const Int*, |
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| 136 | const Float*, |
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| 137 | Int*, |
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| 138 | Int*, |
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| 139 | Complex*, |
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| 140 | Float*, |
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| 141 | Int*, |
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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 | Float*, |
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| 148 | Int*, |
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| 149 | Int*, |
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| 150 | Double*); |
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| 151 | } |
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| 152 | void STGrid::grid() |
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| 153 | { |
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[2361] | 154 | LogIO os( LogOrigin("STGrid", "grid", WHERE) ) ; |
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[2356] | 155 | |
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| 156 | // retrieve data |
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[2375] | 157 | Array<Complex> spectra ; |
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| 158 | Array<Double> direction ; |
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| 159 | Array<Int> flagtra ; |
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| 160 | Array<Int> rflag ; |
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| 161 | Array<Float> weight ; |
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[2364] | 162 | double t0, t1 ; |
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| 163 | t0 = mathutil::gettimeofday_sec() ; |
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[2362] | 164 | getData( spectra, direction, flagtra, rflag, weight ) ; |
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[2364] | 165 | t1 = mathutil::gettimeofday_sec() ; |
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| 166 | os << "getData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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[2356] | 167 | IPosition sshape = spectra.shape() ; |
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[2361] | 168 | //os << "spectra.shape()=" << spectra.shape() << LogIO::POST ; |
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| 169 | //os << "max(spectra) = " << max(spectra) << LogIO::POST ; |
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| 170 | //os << "weight = " << weight << LogIO::POST ; |
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[2356] | 171 | |
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| 172 | // grid parameter |
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[2362] | 173 | os << LogIO::DEBUGGING ; |
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| 174 | os << "----------" << endl ; |
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| 175 | os << "Grid parameter summary" << endl ; |
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| 176 | os << " (nx,ny) = (" << nx_ << "," << ny_ << ")" << endl ; |
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| 177 | os << " (cellx,celly) = (" << cellx_ << "," << celly_ << ")" << endl ; |
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| 178 | os << " center = " << center_ << endl ; |
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| 179 | os << "----------" << LogIO::POST ; |
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| 180 | os << LogIO::NORMAL ; |
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[2356] | 181 | |
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[2359] | 182 | // convolution kernel |
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| 183 | Vector<Float> convFunc ; |
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[2364] | 184 | t0 = mathutil::gettimeofday_sec() ; |
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[2359] | 185 | setConvFunc( convFunc ) ; |
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[2364] | 186 | t1 = mathutil::gettimeofday_sec() ; |
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| 187 | os << "setConvFunc: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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[2359] | 188 | //cout << "convSupport=" << convSupport_ << endl ; |
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| 189 | //cout << "convFunc=" << convFunc << endl ; |
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| 190 | |
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[2356] | 191 | // world -> pixel |
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[2375] | 192 | Array<Double> xypos( direction.shape(), 0.0 ) ; |
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[2364] | 193 | t0 = mathutil::gettimeofday_sec() ; |
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[2356] | 194 | toPixel( direction, xypos ) ; |
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[2364] | 195 | t1 = mathutil::gettimeofday_sec() ; |
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[2375] | 196 | //os << "xypos=" << xypos << LogIO::POST ; |
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[2364] | 197 | os << "toPixel: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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[2356] | 198 | |
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[2361] | 199 | // call ggridsd |
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[2356] | 200 | Bool deletePos, deleteData, deleteWgt, deleteFlag, deleteFlagR, deleteConv, deleteDataG, deleteWgtG ; |
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| 201 | Double *xypos_p = xypos.getStorage( deletePos ) ; |
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[2374] | 202 | const Complex *data_p = spectra.getStorage( deleteData ) ; |
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[2356] | 203 | const Float *wgt_p = weight.getStorage( deleteWgt ) ; |
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[2375] | 204 | //const Int *flag_p = flagI.getStorage( deleteFlag ) ; |
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| 205 | //const Int *rflag_p = rflagI.getStorage( deleteFlagR ) ; |
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| 206 | const Int *flag_p = flagtra.getStorage( deleteFlag ) ; |
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| 207 | const Int *rflag_p = rflag.getStorage( deleteFlagR ) ; |
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[2356] | 208 | Float *conv_p = convFunc.getStorage( deleteConv ) ; |
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[2359] | 209 | // Extend grid plane with convSupport_ |
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[2364] | 210 | Int gnx = nx_ ; |
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| 211 | Int gny = ny_ ; |
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| 212 | // Int gnx = nx_+convSupport_*2 ; |
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| 213 | // Int gny = ny_+convSupport_*2 ; |
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[2361] | 214 | IPosition gshape( 4, gnx, gny, npol_, nchan_ ) ; |
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[2356] | 215 | Array<Complex> gdataArrC( gshape, 0.0 ) ; |
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| 216 | Array<Float> gwgtArr( gshape, 0.0 ) ; |
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| 217 | Complex *gdata_p = gdataArrC.getStorage( deleteDataG ) ; |
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| 218 | Float *wdata_p = gwgtArr.getStorage( deleteWgtG ) ; |
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| 219 | Int idopsf = 0 ; |
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[2361] | 220 | Int *chanMap = new Int[nchan_] ; |
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[2356] | 221 | { |
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| 222 | Int *work_p = chanMap ; |
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[2361] | 223 | for ( Int i = 0 ; i < nchan_ ; i++ ) { |
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[2356] | 224 | *work_p = i ; |
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| 225 | work_p++ ; |
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| 226 | } |
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| 227 | } |
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[2361] | 228 | Int *polMap = new Int[npol_] ; |
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[2356] | 229 | { |
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| 230 | Int *work_p = polMap ; |
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[2361] | 231 | for ( Int i = 0 ; i < npol_ ; i++ ) { |
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[2356] | 232 | *work_p = i ; |
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| 233 | work_p++ ; |
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| 234 | } |
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| 235 | } |
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[2361] | 236 | Double *sumw_p = new Double[npol_*nchan_] ; |
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[2356] | 237 | { |
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| 238 | Double *work_p = sumw_p ; |
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[2361] | 239 | for ( Int i = 0 ; i < npol_*nchan_ ; i++ ) { |
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[2356] | 240 | *work_p = 0.0 ; |
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| 241 | work_p++ ; |
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| 242 | } |
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| 243 | } |
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[2364] | 244 | t0 = mathutil::gettimeofday_sec() ; |
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| 245 | Int irow = -1 ; |
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[2356] | 246 | ggridsd( xypos_p, |
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| 247 | data_p, |
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[2361] | 248 | &npol_, |
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| 249 | &nchan_, |
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[2356] | 250 | &idopsf, |
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| 251 | flag_p, |
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| 252 | rflag_p, |
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| 253 | wgt_p, |
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[2361] | 254 | &nrow_, |
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[2356] | 255 | &irow, |
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| 256 | gdata_p, |
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| 257 | wdata_p, |
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[2359] | 258 | &gnx, |
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| 259 | &gny, |
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[2361] | 260 | &npol_, |
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| 261 | &nchan_, |
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[2356] | 262 | &convSupport_, |
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| 263 | &convSampling_, |
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| 264 | conv_p, |
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| 265 | chanMap, |
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| 266 | polMap, |
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| 267 | sumw_p ) ; |
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[2364] | 268 | t1 = mathutil::gettimeofday_sec() ; |
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| 269 | os << "ggridsd: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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[2356] | 270 | xypos.putStorage( xypos_p, deletePos ) ; |
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[2374] | 271 | spectra.freeStorage( data_p, deleteData ) ; |
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[2356] | 272 | weight.freeStorage( wgt_p, deleteWgt ) ; |
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[2375] | 273 | flagtra.freeStorage( flag_p, deleteFlag ) ; |
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| 274 | rflag.freeStorage( rflag_p, deleteFlagR ) ; |
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[2356] | 275 | convFunc.putStorage( conv_p, deleteConv ) ; |
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| 276 | delete polMap ; |
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| 277 | delete chanMap ; |
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| 278 | gdataArrC.putStorage( gdata_p, deleteDataG ) ; |
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| 279 | gwgtArr.putStorage( wdata_p, deleteWgtG ) ; |
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[2374] | 280 | setData( data_, gdataArrC, gwgtArr ) ; |
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[2361] | 281 | //Matrix<Double> sumWeight( IPosition( 2, npol_, nchan_ ), sumw_p, TAKE_OVER ) ; |
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| 282 | delete sumw_p ; |
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[2356] | 283 | //cout << "sumWeight = " << sumWeight << endl ; |
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[2364] | 284 | // os << "gdataArr = " << gdataArr << LogIO::POST ; |
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| 285 | // os << "gwgtArr = " << gwgtArr << LogIO::POST ; |
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| 286 | // os << "data_ " << data_ << LogIO::POST ; |
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[2356] | 287 | } |
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| 288 | |
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[2368] | 289 | void STGrid::setData( Array<Float> &data, |
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[2374] | 290 | Array<Complex> &gdata, |
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[2368] | 291 | Array<Float> &gwgt ) |
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| 292 | { |
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| 293 | LogIO os( LogOrigin("STGrid","setData",WHERE) ) ; |
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| 294 | double t0, t1 ; |
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| 295 | t0 = mathutil::gettimeofday_sec() ; |
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[2371] | 296 | data.resize( gdata.shape() ) ; |
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[2368] | 297 | uInt len = data.nelements() ; |
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| 298 | Float *w0_p ; |
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[2374] | 299 | const Complex *w1_p ; |
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| 300 | const Float *w2_p ; |
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[2368] | 301 | Bool b0, b1, b2 ; |
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| 302 | Float *data_p = data.getStorage( b0 ) ; |
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[2374] | 303 | const Complex *gdata_p = gdata.getStorage( b1 ) ; |
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[2368] | 304 | const Float *gwgt_p = gwgt.getStorage( b2 ) ; |
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| 305 | w0_p = data_p ; |
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| 306 | w1_p = gdata_p ; |
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| 307 | w2_p = gwgt_p ; |
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| 308 | for ( uInt i = 0 ; i < len ; i++ ) { |
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[2374] | 309 | *w0_p = (*w2_p > 0.0) ? ((*w1_p).real() / *w2_p) : 0.0 ; |
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[2368] | 310 | w0_p++ ; |
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| 311 | w1_p++ ; |
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| 312 | w2_p++ ; |
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| 313 | } |
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| 314 | data.putStorage( data_p, b0 ) ; |
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| 315 | gdata.freeStorage( gdata_p, b1 ) ; |
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| 316 | gwgt.freeStorage( gwgt_p, b2 ) ; |
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| 317 | t1 = mathutil::gettimeofday_sec() ; |
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| 318 | os << "setData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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| 319 | } |
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| 320 | |
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[2356] | 321 | void STGrid::setupGrid( Int &nx, |
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| 322 | Int &ny, |
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| 323 | String &cellx, |
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| 324 | String &celly, |
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| 325 | Double &xmin, |
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| 326 | Double &xmax, |
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| 327 | Double &ymin, |
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| 328 | Double &ymax, |
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| 329 | String ¢er ) |
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| 330 | { |
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[2375] | 331 | LogIO os( LogOrigin("STGrid","setupGrid",WHERE) ) ; |
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[2356] | 332 | //cout << "nx=" << nx << ", ny=" << ny << endl ; |
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[2359] | 333 | |
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| 334 | // center position |
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| 335 | if ( center.size() == 0 ) { |
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| 336 | center_(0) = 0.5 * ( xmin + xmax ) ; |
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| 337 | center_(1) = 0.5 * ( ymin + ymax ) ; |
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| 338 | } |
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| 339 | else { |
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| 340 | String::size_type pos0 = center.find( " " ) ; |
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| 341 | if ( pos0 == String::npos ) { |
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| 342 | throw AipsError( "bad string format in parameter center" ) ; |
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| 343 | } |
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| 344 | String::size_type pos1 = center.find( " ", pos0+1 ) ; |
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| 345 | String typestr, xstr, ystr ; |
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| 346 | if ( pos1 != String::npos ) { |
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| 347 | typestr = center.substr( 0, pos0 ) ; |
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| 348 | xstr = center.substr( pos0+1, pos1-pos0 ) ; |
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| 349 | ystr = center.substr( pos1+1 ) ; |
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| 350 | // todo: convert to J2000 (or direction ref for DIRECTION column) |
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| 351 | } |
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| 352 | else { |
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| 353 | typestr = "J2000" ; |
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| 354 | xstr = center.substr( 0, pos0 ) ; |
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| 355 | ystr = center.substr( pos0+1 ) ; |
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| 356 | } |
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| 357 | QuantumHolder qh ; |
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| 358 | String err ; |
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| 359 | qh.fromString( err, xstr ) ; |
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| 360 | Quantum<Double> xcen = qh.asQuantumDouble() ; |
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| 361 | qh.fromString( err, ystr ) ; |
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| 362 | Quantum<Double> ycen = qh.asQuantumDouble() ; |
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| 363 | center_(0) = xcen.getValue( "rad" ) ; |
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| 364 | center_(1) = ycen.getValue( "rad" ) ; |
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| 365 | } |
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| 366 | |
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| 367 | |
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[2356] | 368 | nx_ = nx ; |
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| 369 | ny_ = ny ; |
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| 370 | if ( nx < 0 && ny > 0 ) { |
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| 371 | nx_ = ny ; |
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| 372 | ny_ = ny ; |
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| 373 | } |
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| 374 | if ( ny < 0 && nx > 0 ) { |
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| 375 | nx_ = nx ; |
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| 376 | ny_ = nx ; |
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| 377 | } |
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[2375] | 378 | |
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| 379 | //Double wx = xmax - xmin ; |
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| 380 | //Double wy = ymax - ymin ; |
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| 381 | Double wx = max( abs(xmax-center_(0)), abs(xmin-center_(0)) ) * 2 ; |
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| 382 | Double wy = max( abs(ymax-center_(1)), abs(ymin-center_(1)) ) * 2 ; |
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| 383 | // take 10% margin |
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| 384 | wx *= 1.10 ; |
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| 385 | wy *= 1.10 ; |
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| 386 | |
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| 387 | Quantum<Double> qcellx ; |
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| 388 | Quantum<Double> qcelly ; |
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[2356] | 389 | //cout << "nx_ = " << nx_ << ", ny_ = " << ny_ << endl ; |
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| 390 | if ( cellx.size() != 0 && celly.size() != 0 ) { |
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| 391 | readQuantity( qcellx, cellx ) ; |
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| 392 | readQuantity( qcelly, celly ) ; |
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| 393 | } |
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| 394 | else if ( celly.size() != 0 ) { |
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[2375] | 395 | os << "Using celly to x-axis..." << LogIO::POST ; |
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[2356] | 396 | readQuantity( qcelly, celly ) ; |
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| 397 | qcellx = qcelly ; |
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| 398 | } |
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| 399 | else if ( cellx.size() != 0 ) { |
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[2375] | 400 | os << "Using cellx to y-axis..." << LogIO::POST ; |
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[2356] | 401 | readQuantity( qcellx, cellx ) ; |
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| 402 | qcelly = qcellx ; |
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| 403 | } |
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| 404 | else { |
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| 405 | if ( nx_ < 0 ) { |
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[2375] | 406 | os << "No user preference in grid setting. Using default..." << LogIO::POST ; |
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[2356] | 407 | readQuantity( qcellx, "1.0arcmin" ) ; |
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| 408 | qcelly = qcellx ; |
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| 409 | } |
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| 410 | else { |
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[2375] | 411 | if ( wx == 0.0 ) { |
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| 412 | os << "Using default spatial extent (10arcmin) in x" << LogIO::POST ; |
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| 413 | wx = 0.00290888 ; |
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| 414 | } |
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| 415 | if ( wy == 0.0 ) { |
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| 416 | os << "Using default spatial extent (10arcmin) in y" << LogIO::POST ; |
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| 417 | wy = 0.00290888 ; |
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| 418 | } |
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[2356] | 419 | qcellx = Quantum<Double>( wx/nx_, "rad" ) ; |
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| 420 | qcelly = Quantum<Double>( wy/ny_, "rad" ) ; |
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| 421 | } |
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| 422 | } |
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| 423 | cellx_ = qcellx.getValue( "rad" ) ; |
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| 424 | celly_ = qcelly.getValue( "rad" ) ; |
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| 425 | if ( nx_ < 0 ) { |
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[2375] | 426 | if ( wx == 0.0 ) { |
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| 427 | os << "Using default spatial extent (10arcmin) in x" << LogIO::POST ; |
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| 428 | wx = 0.00290888 ; |
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| 429 | } |
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| 430 | if ( wy == 0.0 ) { |
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| 431 | os << "Using default spatial extent (10arcmin) in y" << LogIO::POST ; |
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| 432 | wy = 0.00290888 ; |
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| 433 | } |
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[2356] | 434 | nx_ = Int( ceil( wx/cellx_ ) ) ; |
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| 435 | ny_ = Int( ceil( wy/celly_ ) ) ; |
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| 436 | } |
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| 437 | } |
---|
| 438 | |
---|
[2362] | 439 | void STGrid::selectData( Table &tab ) |
---|
| 440 | { |
---|
| 441 | Int ifno = ifno_ ; |
---|
| 442 | Table taborg( infile_ ) ; |
---|
| 443 | if ( ifno == -1 ) { |
---|
[2368] | 444 | LogIO os( LogOrigin("STGrid","selectData",WHERE) ) ; |
---|
[2362] | 445 | // os << LogIO::SEVERE |
---|
| 446 | // << "Please set IFNO before actual gridding" |
---|
| 447 | // << LogIO::EXCEPTION ; |
---|
| 448 | ROScalarColumn<uInt> ifnoCol( taborg, "IFNO" ) ; |
---|
| 449 | ifno = ifnoCol( 0 ) ; |
---|
| 450 | os << LogIO::WARN |
---|
| 451 | << "IFNO is not given. Using default IFNO: " << ifno << LogIO::POST ; |
---|
| 452 | } |
---|
[2364] | 453 | // tab = taborg( taborg.col("IFNO") == ifno ) ; |
---|
| 454 | TableExprNode node ; |
---|
| 455 | node = taborg.col("IFNO") == ifno ; |
---|
| 456 | if ( scanlist_.size() > 0 ) { |
---|
| 457 | node = node && taborg.col("SCANNO").in( scanlist_ ) ; |
---|
| 458 | } |
---|
[2377] | 459 | // Block<String> cols( 3 ) ; |
---|
| 460 | // cols[0] = "TIME" ; |
---|
| 461 | // cols[1] = "BEAMNO" ; |
---|
| 462 | // cols[2] = "POLNO" ; |
---|
| 463 | // Block<Int> order( 3, Sort::Ascending ) ; |
---|
| 464 | // tab = taborg( node ).sort( cols, order ) ; |
---|
| 465 | tab = taborg( node ) ; |
---|
[2362] | 466 | if ( tab.nrow() == 0 ) { |
---|
[2368] | 467 | LogIO os( LogOrigin("STGrid","selectData",WHERE) ) ; |
---|
[2362] | 468 | os << LogIO::SEVERE |
---|
[2376] | 469 | << "No corresponding rows for given selection: IFNO " << ifno ; |
---|
| 470 | if ( scanlist_.size() > 0 ) |
---|
| 471 | os << " SCANNO " << scanlist_ ; |
---|
| 472 | os << LogIO::EXCEPTION ; |
---|
[2362] | 473 | } |
---|
| 474 | } |
---|
| 475 | |
---|
[2375] | 476 | void STGrid::getData( Array<Complex> &spectra, |
---|
| 477 | Array<Double> &direction, |
---|
| 478 | Array<uChar> &flagtra, |
---|
| 479 | Array<uInt> &rflag, |
---|
| 480 | Array<Float> &weight ) |
---|
[2356] | 481 | { |
---|
[2375] | 482 | LogIO os( LogOrigin("STGrid","getData",WHERE) ) ; |
---|
[2374] | 483 | // os << "start" << LogIO::POST ; |
---|
[2362] | 484 | Table tab ; |
---|
| 485 | selectData( tab ) ; |
---|
[2375] | 486 | setupArray( tab ) ; |
---|
[2374] | 487 | // os << "npol_ = " << npol_ << LogIO::POST ; |
---|
| 488 | // os << "nchan_ = " << nchan_ << LogIO::POST ; |
---|
| 489 | // os << "nrow_ = " << nrow_ << LogIO::POST ; |
---|
[2375] | 490 | IPosition cshape( 3, npol_, nchan_, nrow_ ) ; |
---|
| 491 | IPosition mshape( 2, npol_, nrow_ ) ; |
---|
| 492 | spectra.resize( cshape ) ; |
---|
| 493 | flagtra.resize( cshape ) ; |
---|
| 494 | rflag.resize( mshape ) ; |
---|
| 495 | direction.resize( IPosition(2,2,nrow_) ) ; |
---|
| 496 | Array<Float> tsys( cshape ) ; |
---|
| 497 | Array<Double> tint( mshape ) ; |
---|
| 498 | |
---|
| 499 | ArrayIterator<uChar> fli( flagtra, IPosition(2,1,2) ) ; |
---|
| 500 | ArrayIterator<uInt> fri( rflag, IPosition(1,1) ) ; |
---|
| 501 | ArrayIterator<Float> tsi( tsys, IPosition(2,1,2) ) ; |
---|
| 502 | ArrayIterator<Double> tii( tint, IPosition(1,1) ) ; |
---|
| 503 | |
---|
[2371] | 504 | // boolean for pointer access |
---|
[2375] | 505 | Bool bsp, bsps ; |
---|
[2371] | 506 | // pointer to the data |
---|
[2374] | 507 | Complex *sp_p = spectra.getStorage( bsp ) ; |
---|
[2371] | 508 | // working pointer |
---|
[2374] | 509 | Complex *wsp_p = sp_p ; |
---|
[2371] | 510 | uInt len = nchan_ * nrow_ ; |
---|
[2375] | 511 | IPosition mshape2( 2, nchan_, nrow_ ) ; |
---|
[2371] | 512 | IPosition vshape( 1, nrow_ ) ; |
---|
[2374] | 513 | Vector<Float> spSlice( nchan_ ) ; |
---|
| 514 | const Float *sps_p = spSlice.getStorage( bsps ) ; |
---|
| 515 | long cincr = npol_ ; |
---|
| 516 | long rincr = npol_ * nchan_ ; |
---|
[2361] | 517 | for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) { |
---|
[2360] | 518 | Table subt = tab( tab.col("POLNO") == pollist_[ipol] ) ; |
---|
| 519 | ROArrayColumn<Float> spectraCol( subt, "SPECTRA" ) ; |
---|
| 520 | ROArrayColumn<Double> directionCol( subt, "DIRECTION" ) ; |
---|
| 521 | ROArrayColumn<uChar> flagtraCol( subt, "FLAGTRA" ) ; |
---|
| 522 | ROScalarColumn<uInt> rflagCol( subt, "FLAGROW" ) ; |
---|
[2361] | 523 | ROArrayColumn<Float> tsysCol( subt, "TSYS" ) ; |
---|
| 524 | ROScalarColumn<Double> tintCol( subt, "INTERVAL" ) ; |
---|
[2374] | 525 | for ( Int irow = 0 ; irow < nrow_ ; irow++ ) { |
---|
| 526 | spectraCol.get( irow, spSlice ) ; |
---|
| 527 | const Float *wsps_p = sps_p ; |
---|
| 528 | wsp_p = sp_p + (long)ipol + rincr * (long)irow ; |
---|
| 529 | for ( Int ichan = 0 ; ichan < nchan_ ; ichan++ ) { |
---|
| 530 | *wsp_p = *wsps_p ; |
---|
| 531 | wsps_p++ ; |
---|
| 532 | wsp_p += cincr ; |
---|
| 533 | } |
---|
| 534 | } |
---|
[2375] | 535 | Array<uChar> flSlice = fli.array() ; |
---|
| 536 | Vector<uInt> frSlice = fri.array() ; |
---|
[2371] | 537 | flagtraCol.getColumn( flSlice ) ; |
---|
| 538 | rflagCol.getColumn( frSlice ) ; |
---|
[2360] | 539 | if ( ipol == 0 ) |
---|
| 540 | directionCol.getColumn( direction ) ; |
---|
[2371] | 541 | Vector<Float> tmpF = tsysCol( 0 ) ; |
---|
[2375] | 542 | Array<Float> tsSlice = tsi.array() ; |
---|
[2371] | 543 | if ( tmpF.nelements() == (uInt)nchan_ ) { |
---|
| 544 | tsysCol.getColumn( tsSlice ) ; |
---|
[2361] | 545 | } |
---|
| 546 | else { |
---|
[2371] | 547 | tsSlice = tmpF( 0 ) ; |
---|
[2361] | 548 | } |
---|
[2375] | 549 | Vector<Double> tmpD = tii.array() ; |
---|
[2361] | 550 | tintCol.getColumn( tmpD ) ; |
---|
[2371] | 551 | |
---|
| 552 | wsp_p += len ; |
---|
[2375] | 553 | |
---|
| 554 | fli.next() ; |
---|
| 555 | fri.next() ; |
---|
| 556 | tsi.next() ; |
---|
| 557 | tii.next() ; |
---|
[2360] | 558 | } |
---|
[2374] | 559 | spSlice.freeStorage( sps_p, bsps ) ; |
---|
[2371] | 560 | spectra.putStorage( sp_p, bsp ) ; |
---|
[2361] | 561 | |
---|
[2375] | 562 | // os << "spectra=" << spectra << LogIO::POST ; |
---|
| 563 | // os << "flagtra=" << flagtra << LogIO::POST ; |
---|
| 564 | // os << "rflag=" << rflag << LogIO::POST ; |
---|
| 565 | // os << "direction=" << direction << LogIO::POST ; |
---|
| 566 | |
---|
[2361] | 567 | getWeight( weight, tsys, tint ) ; |
---|
[2356] | 568 | } |
---|
| 569 | |
---|
[2375] | 570 | void STGrid::getData( Array<Complex> &spectra, |
---|
| 571 | Array<Double> &direction, |
---|
| 572 | Array<Int> &flagtra, |
---|
| 573 | Array<Int> &rflag, |
---|
| 574 | Array<Float> &weight ) |
---|
[2371] | 575 | { |
---|
[2375] | 576 | LogIO os( LogOrigin("STGrid","getData",WHERE) ) ; |
---|
| 577 | double t0, t1 ; |
---|
| 578 | |
---|
| 579 | Array<uChar> flagUC ; |
---|
| 580 | Array<uInt> rflagUI ; |
---|
| 581 | getData( spectra, direction, flagUC, rflagUI, weight ) ; |
---|
| 582 | |
---|
| 583 | t0 = mathutil::gettimeofday_sec() ; |
---|
| 584 | toInt( flagUC, flagtra ) ; |
---|
| 585 | toInt( rflagUI, rflag ) ; |
---|
| 586 | t1 = mathutil::gettimeofday_sec() ; |
---|
| 587 | os << "toInt: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
---|
| 588 | } |
---|
| 589 | |
---|
| 590 | void STGrid::setupArray( Table &tab ) |
---|
| 591 | { |
---|
[2376] | 592 | LogIO os( LogOrigin("STGrid","setupArray",WHERE) ) ; |
---|
[2371] | 593 | ROScalarColumn<uInt> polnoCol( tab, "POLNO" ) ; |
---|
| 594 | Vector<uInt> pols = polnoCol.getColumn() ; |
---|
[2376] | 595 | //os << pols << LogIO::POST ; |
---|
[2371] | 596 | Vector<uInt> pollistOrg ; |
---|
| 597 | uInt npolOrg = 0 ; |
---|
| 598 | uInt polno ; |
---|
| 599 | for ( uInt i = 0 ; i < polnoCol.nrow() ; i++ ) { |
---|
| 600 | //polno = polnoCol( i ) ; |
---|
| 601 | polno = pols( i ) ; |
---|
| 602 | if ( allNE( pollistOrg, polno ) ) { |
---|
| 603 | pollistOrg.resize( npolOrg+1, True ) ; |
---|
| 604 | pollistOrg[npolOrg] = polno ; |
---|
| 605 | npolOrg++ ; |
---|
| 606 | } |
---|
| 607 | } |
---|
| 608 | if ( pollist_.size() == 0 ) |
---|
| 609 | pollist_ = pollistOrg ; |
---|
| 610 | else { |
---|
| 611 | Vector<uInt> newlist ; |
---|
| 612 | uInt newsize = 0 ; |
---|
| 613 | for ( uInt i = 0 ; i < pollist_.size() ; i++ ) { |
---|
| 614 | if ( anyEQ( pollistOrg, pollist_[i] ) ) { |
---|
| 615 | newlist.resize( newsize+1, True ) ; |
---|
| 616 | newlist[newsize] = pollist_[i] ; |
---|
| 617 | newsize++ ; |
---|
| 618 | } |
---|
| 619 | } |
---|
| 620 | pollist_.assign( newlist ) ; |
---|
| 621 | } |
---|
| 622 | npol_ = pollist_.size() ; |
---|
| 623 | if ( npol_ == 0 ) { |
---|
| 624 | os << LogIO::SEVERE << "Empty pollist" << LogIO::EXCEPTION ; |
---|
| 625 | } |
---|
| 626 | nrow_ = tab.nrow() / npolOrg ; |
---|
| 627 | ROArrayColumn<uChar> tmpCol( tab, "FLAGTRA" ) ; |
---|
| 628 | nchan_ = tmpCol( 0 ).nelements() ; |
---|
| 629 | // os << "npol_ = " << npol_ << "(" << pollist_ << ")" << endl |
---|
| 630 | // << "nchan_ = " << nchan_ << endl |
---|
| 631 | // << "nrow_ = " << nrow_ << LogIO::POST ; |
---|
| 632 | } |
---|
| 633 | |
---|
[2375] | 634 | void STGrid::getWeight( Array<Float> &w, |
---|
| 635 | Array<Float> &tsys, |
---|
| 636 | Array<Double> &tint ) |
---|
[2361] | 637 | { |
---|
[2368] | 638 | LogIO os( LogOrigin("STGrid","getWeight",WHERE) ) ; |
---|
| 639 | double t0, t1 ; |
---|
| 640 | t0 = mathutil::gettimeofday_sec() ; |
---|
[2361] | 641 | // resize |
---|
[2375] | 642 | IPosition refShape = tsys.shape() ; |
---|
| 643 | Int nchan = refShape[1] ; |
---|
| 644 | Int nrow = refShape[2] ; |
---|
| 645 | w.resize( IPosition(2,nchan,nrow) ) ; |
---|
[2361] | 646 | |
---|
| 647 | // set weight |
---|
| 648 | Bool warn = False ; |
---|
| 649 | if ( wtype_.compare( "UNIFORM" ) == 0 ) { |
---|
[2368] | 650 | w = 1.0 ; |
---|
[2361] | 651 | } |
---|
| 652 | else if ( wtype_.compare( "TINT" ) == 0 ) { |
---|
| 653 | if ( npol_ > 1 ) warn = True ; |
---|
[2369] | 654 | Bool b0, b1 ; |
---|
| 655 | Float *w_p = w.getStorage( b0 ) ; |
---|
| 656 | Float *w0_p = w_p ; |
---|
| 657 | const Double *ti_p = tint.getStorage( b1 ) ; |
---|
| 658 | const Double *w1_p = ti_p ; |
---|
[2375] | 659 | for ( Int irow = 0 ; irow < nrow ; irow++ ) { |
---|
[2369] | 660 | Float val = (Float)(polMean( w1_p )) ; |
---|
[2375] | 661 | for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) { |
---|
[2369] | 662 | *w0_p = val ; |
---|
| 663 | w0_p++ ; |
---|
| 664 | } |
---|
[2361] | 665 | } |
---|
[2369] | 666 | w.putStorage( w_p, b0 ) ; |
---|
| 667 | tint.freeStorage( ti_p, b1 ) ; |
---|
[2361] | 668 | } |
---|
| 669 | else if ( wtype_.compare( "TSYS" ) == 0 ) { |
---|
| 670 | if ( npol_ > 1 ) warn = True ; |
---|
[2369] | 671 | Bool b0, b1 ; |
---|
| 672 | Float *w_p = w.getStorage( b0 ) ; |
---|
| 673 | Float *w0_p = w_p ; |
---|
| 674 | const Float *ts_p = tsys.getStorage( b1 ) ; |
---|
| 675 | const Float *w1_p = ts_p ; |
---|
[2375] | 676 | for ( Int irow = 0 ; irow < nrow ; irow++ ) { |
---|
| 677 | for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) { |
---|
[2369] | 678 | Float val = polMean( w1_p ) ; |
---|
| 679 | *w0_p = 1.0 / ( val * val ) ; |
---|
| 680 | w0_p++ ; |
---|
[2361] | 681 | } |
---|
| 682 | } |
---|
[2369] | 683 | w.putStorage( w_p, b0 ) ; |
---|
| 684 | tsys.freeStorage( ts_p, b1 ) ; |
---|
[2361] | 685 | } |
---|
| 686 | else if ( wtype_.compare( "TINTSYS" ) == 0 ) { |
---|
| 687 | if ( npol_ > 1 ) warn = True ; |
---|
[2369] | 688 | Bool b0, b1, b2 ; |
---|
| 689 | Float *w_p = w.getStorage( b0 ) ; |
---|
| 690 | Float *w0_p = w_p ; |
---|
| 691 | const Double *ti_p = tint.getStorage( b1 ) ; |
---|
| 692 | const Double *w1_p = ti_p ; |
---|
| 693 | const Float *ts_p = tsys.getStorage( b2 ) ; |
---|
| 694 | const Float *w2_p = ts_p ; |
---|
[2375] | 695 | for ( Int irow = 0 ; irow < nrow ; irow++ ) { |
---|
[2369] | 696 | Float interval = (Float)(polMean( w1_p )) ; |
---|
[2375] | 697 | for ( Int ichan = 0 ; ichan < nchan ; ichan++ ) { |
---|
[2369] | 698 | Float temp = polMean( w2_p ) ; |
---|
| 699 | *w0_p = interval / ( temp * temp ) ; |
---|
| 700 | w0_p++ ; |
---|
[2361] | 701 | } |
---|
| 702 | } |
---|
[2369] | 703 | w.putStorage( w_p, b0 ) ; |
---|
| 704 | tint.freeStorage( ti_p, b1 ) ; |
---|
| 705 | tsys.freeStorage( ts_p, b2 ) ; |
---|
[2361] | 706 | } |
---|
| 707 | else { |
---|
[2368] | 708 | //LogIO os( LogOrigin("STGrid", "getWeight", WHERE) ) ; |
---|
| 709 | os << LogIO::WARN << "Unsupported weight type '" << wtype_ << "', apply UNIFORM weight" << LogIO::POST ; |
---|
| 710 | w = 1.0 ; |
---|
[2361] | 711 | } |
---|
| 712 | |
---|
| 713 | if ( npol_ > 1 ) { |
---|
[2368] | 714 | //LogIO os( LogOrigin("STGrid", "getWeight", WHERE) ) ; |
---|
[2362] | 715 | os << LogIO::WARN << "STGrid doesn't support assigning polarization-dependent weight. Use averaged weight over polarization." << LogIO::POST ; |
---|
[2361] | 716 | } |
---|
[2368] | 717 | t1 = mathutil::gettimeofday_sec() ; |
---|
| 718 | os << "getWeight: elapsed time is " << t1-t0 << " sec" << LogIO::POST ; |
---|
[2361] | 719 | } |
---|
| 720 | |
---|
[2369] | 721 | Float STGrid::polMean( const Float *p ) |
---|
| 722 | { |
---|
| 723 | Float v = 0.0 ; |
---|
| 724 | for ( Int i = 0 ; i < npol_ ; i++ ) { |
---|
| 725 | v += *p ; |
---|
| 726 | p++ ; |
---|
| 727 | } |
---|
| 728 | v /= npol_ ; |
---|
| 729 | return v ; |
---|
| 730 | } |
---|
| 731 | |
---|
| 732 | Double STGrid::polMean( const Double *p ) |
---|
| 733 | { |
---|
| 734 | Double v = 0.0 ; |
---|
| 735 | for ( Int i = 0 ; i < npol_ ; i++ ) { |
---|
| 736 | v += *p ; |
---|
| 737 | p++ ; |
---|
| 738 | } |
---|
| 739 | v /= npol_ ; |
---|
| 740 | return v ; |
---|
| 741 | } |
---|
| 742 | |
---|
[2375] | 743 | void STGrid::toInt( Array<uChar> &u, Array<Int> &v ) |
---|
[2356] | 744 | { |
---|
[2375] | 745 | uInt len = u.nelements() ; |
---|
[2356] | 746 | Int *int_p = new Int[len] ; |
---|
| 747 | Bool deleteIt ; |
---|
[2375] | 748 | const uChar *data_p = u.getStorage( deleteIt ) ; |
---|
[2356] | 749 | Int *i_p = int_p ; |
---|
| 750 | const uChar *u_p = data_p ; |
---|
| 751 | for ( uInt i = 0 ; i < len ; i++ ) { |
---|
| 752 | *i_p = ( *u_p == 0 ) ? 0 : 1 ; |
---|
| 753 | i_p++ ; |
---|
| 754 | u_p++ ; |
---|
| 755 | } |
---|
[2375] | 756 | u.freeStorage( data_p, deleteIt ) ; |
---|
| 757 | v.takeStorage( u.shape(), int_p, TAKE_OVER ) ; |
---|
[2356] | 758 | } |
---|
| 759 | |
---|
[2375] | 760 | void STGrid::toInt( Array<uInt> &u, Array<Int> &v ) |
---|
[2356] | 761 | { |
---|
[2375] | 762 | uInt len = u.nelements() ; |
---|
[2356] | 763 | Int *int_p = new Int[len] ; |
---|
| 764 | Bool deleteIt ; |
---|
[2375] | 765 | const uInt *data_p = u.getStorage( deleteIt ) ; |
---|
[2356] | 766 | Int *i_p = int_p ; |
---|
| 767 | const uInt *u_p = data_p ; |
---|
| 768 | for ( uInt i = 0 ; i < len ; i++ ) { |
---|
| 769 | *i_p = ( *u_p == 0 ) ? 0 : 1 ; |
---|
| 770 | i_p++ ; |
---|
| 771 | u_p++ ; |
---|
| 772 | } |
---|
[2375] | 773 | u.freeStorage( data_p, deleteIt ) ; |
---|
| 774 | v.takeStorage( u.shape(), int_p, TAKE_OVER ) ; |
---|
[2356] | 775 | } |
---|
| 776 | |
---|
[2375] | 777 | void STGrid::toPixel( Array<Double> &world, Array<Double> &pixel ) |
---|
[2356] | 778 | { |
---|
[2359] | 779 | // gridding will be done on (nx_+2*convSupport_) x (ny_+2*convSupport_) |
---|
| 780 | // grid plane to avoid unexpected behavior on grid edge |
---|
[2375] | 781 | Block<Double> pixc( 2 ) ; |
---|
| 782 | pixc[0] = Double( nx_-1 ) * 0.5 ; |
---|
| 783 | pixc[1] = Double( ny_-1 ) * 0.5 ; |
---|
| 784 | // pixc[0] = Double( nx_+2*convSupport_-1 ) * 0.5 ; |
---|
| 785 | // pixc[1] = Double( ny_+2*convSupport_-1 ) * 0.5 ; |
---|
[2356] | 786 | uInt nrow = world.shape()[1] ; |
---|
[2375] | 787 | Bool bw, bp ; |
---|
| 788 | const Double *w_p = world.getStorage( bw ) ; |
---|
| 789 | Double *p_p = pixel.getStorage( bp ) ; |
---|
| 790 | const Double *ww_p = w_p ; |
---|
| 791 | Double *wp_p = p_p ; |
---|
| 792 | for ( uInt i = 0 ; i < nrow ; i++ ) { |
---|
| 793 | *wp_p = pixc[0] + ( *ww_p - center_[0] ) / cellx_ ; |
---|
| 794 | wp_p++ ; |
---|
| 795 | ww_p++ ; |
---|
| 796 | *wp_p = pixc[1] + ( *ww_p - center_[1] ) / celly_ ; |
---|
| 797 | wp_p++ ; |
---|
| 798 | ww_p++ ; |
---|
[2356] | 799 | } |
---|
[2375] | 800 | world.freeStorage( w_p, bw ) ; |
---|
| 801 | pixel.putStorage( p_p, bp ) ; |
---|
[2364] | 802 | // String gridfile = "grid."+convType_+"."+String::toString(convSupport_)+".dat" ; |
---|
| 803 | // ofstream ofs( gridfile.c_str(), ios::out ) ; |
---|
| 804 | // ofs << "center " << center_(0) << " " << pixc(0) |
---|
| 805 | // << " " << center_(1) << " " << pixc(1) << endl ; |
---|
| 806 | // for ( uInt irow = 0 ; irow < nrow ; irow++ ) { |
---|
| 807 | // ofs << irow ; |
---|
| 808 | // for ( uInt i = 0 ; i < 2 ; i++ ) { |
---|
| 809 | // ofs << " " << world(i, irow) << " " << pixel(i, irow) ; |
---|
| 810 | // } |
---|
| 811 | // ofs << endl ; |
---|
| 812 | // } |
---|
| 813 | // ofs.close() ; |
---|
[2356] | 814 | } |
---|
| 815 | |
---|
| 816 | void STGrid::boxFunc( Vector<Float> &convFunc, Int &convSize ) |
---|
| 817 | { |
---|
| 818 | convFunc = 0.0 ; |
---|
| 819 | for ( Int i = 0 ; i < convSize/2 ; i++ ) |
---|
| 820 | convFunc(i) = 1.0 ; |
---|
| 821 | } |
---|
| 822 | |
---|
| 823 | #define NEED_UNDERSCORES |
---|
| 824 | #if defined(NEED_UNDERSCORES) |
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| 825 | #define grdsf grdsf_ |
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| 826 | #endif |
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| 827 | extern "C" { |
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| 828 | void grdsf(Double*, Double*); |
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| 829 | } |
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| 830 | void STGrid::spheroidalFunc( Vector<Float> &convFunc ) |
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| 831 | { |
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| 832 | convFunc = 0.0 ; |
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| 833 | for ( Int i = 0 ; i < convSampling_*convSupport_ ; i++ ) { |
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| 834 | Double nu = Double(i) / Double(convSupport_*convSampling_) ; |
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| 835 | Double val ; |
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| 836 | grdsf( &nu, &val ) ; |
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| 837 | convFunc(i) = ( 1.0 - nu * nu ) * val ; |
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| 838 | } |
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| 839 | } |
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| 840 | |
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| 841 | void STGrid::gaussFunc( Vector<Float> &convFunc ) |
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| 842 | { |
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| 843 | convFunc = 0.0 ; |
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[2363] | 844 | // HWHM of the Gaussian is convSupport_ / 4 |
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| 845 | // To take into account Gaussian tail, kernel cutoff is set to 4 * HWHM |
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| 846 | Int len = convSampling_ * convSupport_ ; |
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| 847 | Double hwhm = len * 0.25 ; |
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| 848 | for ( Int i = 0 ; i < len ; i++ ) { |
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[2356] | 849 | Double val = Double(i) / hwhm ; |
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| 850 | convFunc(i) = exp( -log(2)*val*val ) ; |
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| 851 | } |
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| 852 | } |
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| 853 | |
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| 854 | void STGrid::pbFunc( Vector<Float> &convFunc ) |
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| 855 | { |
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| 856 | convFunc = 0.0 ; |
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| 857 | } |
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| 858 | |
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| 859 | void STGrid::setConvFunc( Vector<Float> &convFunc ) |
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| 860 | { |
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| 861 | convSupport_ = userSupport_ ; |
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| 862 | if ( convType_ == "BOX" ) { |
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| 863 | if ( convSupport_ < 0 ) |
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| 864 | convSupport_ = 0 ; |
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| 865 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
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| 866 | convFunc.resize( convSize ) ; |
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| 867 | boxFunc( convFunc, convSize ) ; |
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| 868 | } |
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| 869 | else if ( convType_ == "SF" ) { |
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| 870 | if ( convSupport_ < 0 ) |
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| 871 | convSupport_ = 3 ; |
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| 872 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
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| 873 | convFunc.resize( convSize ) ; |
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| 874 | spheroidalFunc( convFunc ) ; |
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| 875 | } |
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| 876 | else if ( convType_ == "GAUSS" ) { |
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[2363] | 877 | // to take into account Gaussian tail |
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[2356] | 878 | if ( convSupport_ < 0 ) |
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[2363] | 879 | convSupport_ = 12 ; // 3 * 4 |
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| 880 | else { |
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| 881 | convSupport_ = userSupport_ * 4 ; |
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| 882 | } |
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[2356] | 883 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ; |
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| 884 | convFunc.resize( convSize ) ; |
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| 885 | gaussFunc( convFunc ) ; |
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| 886 | } |
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[2359] | 887 | else if ( convType_ == "PB" ) { |
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| 888 | if ( convSupport_ < 0 ) |
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| 889 | convSupport_ = 0 ; |
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[2356] | 890 | pbFunc( convFunc ) ; |
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[2359] | 891 | } |
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[2356] | 892 | else { |
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| 893 | throw AipsError( "Unsupported convolution function" ) ; |
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| 894 | } |
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| 895 | } |
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| 896 | |
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| 897 | string STGrid::saveData( string outfile ) |
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| 898 | { |
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[2368] | 899 | LogIO os( LogOrigin("STGrid", "saveData", WHERE) ) ; |
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| 900 | double t0, t1 ; |
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| 901 | t0 = mathutil::gettimeofday_sec() ; |
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| 902 | |
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[2360] | 903 | //Int polno = 0 ; |
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[2371] | 904 | String outfile_ ; |
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[2356] | 905 | if ( outfile.size() == 0 ) { |
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| 906 | if ( infile_.lastchar() == '/' ) { |
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| 907 | outfile_ = infile_.substr( 0, infile_.size()-1 ) ; |
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| 908 | } |
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| 909 | else { |
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| 910 | outfile_ = infile_ ; |
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| 911 | } |
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| 912 | outfile_ += ".grid" ; |
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| 913 | } |
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| 914 | else { |
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| 915 | outfile_ = outfile ; |
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| 916 | } |
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[2371] | 917 | Table tab ; |
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| 918 | prepareTable( tab, outfile_ ) ; |
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[2356] | 919 | IPosition dshape = data_.shape() ; |
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[2361] | 920 | Int nrow = nx_ * ny_ * npol_ ; |
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| 921 | tab.rwKeywordSet().define( "nPol", npol_ ) ; |
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[2360] | 922 | tab.addRow( nrow ) ; |
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[2356] | 923 | Vector<Double> cpix( 2 ) ; |
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| 924 | cpix(0) = Double( nx_ - 1 ) * 0.5 ; |
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| 925 | cpix(1) = Double( ny_ - 1 ) * 0.5 ; |
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| 926 | Vector<Double> dir( 2 ) ; |
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| 927 | ArrayColumn<Double> directionCol( tab, "DIRECTION" ) ; |
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| 928 | ArrayColumn<Float> spectraCol( tab, "SPECTRA" ) ; |
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| 929 | ScalarColumn<uInt> polnoCol( tab, "POLNO" ) ; |
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| 930 | Int irow = 0 ; |
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[2371] | 931 | Vector<Float> sp( nchan_ ) ; |
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| 932 | Bool bsp, bdata ; |
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| 933 | const Float *data_p = data_.getStorage( bdata ) ; |
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| 934 | Float *wsp_p, *sp_p ; |
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| 935 | const Float *wdata_p = data_p ; |
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| 936 | long step = nx_ * ny_ * npol_ ; |
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| 937 | long offset ; |
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[2356] | 938 | for ( Int iy = 0 ; iy < ny_ ; iy++ ) { |
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[2371] | 939 | dir(1) = center_(1) - ( cpix(1) - (Double)iy ) * celly_ ; |
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[2356] | 940 | for ( Int ix = 0 ; ix < nx_ ; ix++ ) { |
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[2371] | 941 | dir(0) = center_(0) - ( cpix(0) - (Double)ix ) * cellx_ ; |
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[2361] | 942 | for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) { |
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[2371] | 943 | offset = ix + iy * nx_ + ipol * nx_ * ny_ ; |
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| 944 | //os << "offset = " << offset << LogIO::POST ; |
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| 945 | sp_p = sp.getStorage( bsp ) ; |
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| 946 | wsp_p = sp_p ; |
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| 947 | wdata_p = data_p + offset ; |
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| 948 | for ( Int ichan = 0 ; ichan < nchan_ ; ichan++ ) { |
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| 949 | *wsp_p = *wdata_p ; |
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| 950 | wsp_p++ ; |
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| 951 | wdata_p += step ; |
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| 952 | } |
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| 953 | sp.putStorage( sp_p, bsp ) ; |
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[2356] | 954 | spectraCol.put( irow, sp ) ; |
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| 955 | directionCol.put( irow, dir ) ; |
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[2360] | 956 | polnoCol.put( irow, pollist_[ipol] ) ; |
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[2356] | 957 | irow++ ; |
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| 958 | } |
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| 959 | } |
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| 960 | } |
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[2371] | 961 | data_.freeStorage( data_p, bdata ) ; |
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[2368] | 962 | |
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| 963 | t1 = mathutil::gettimeofday_sec() ; |
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| 964 | os << "saveData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ; |
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[2374] | 965 | |
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[2356] | 966 | return outfile_ ; |
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| 967 | } |
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| 968 | |
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[2371] | 969 | void STGrid::prepareTable( Table &tab, String &name ) |
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| 970 | { |
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| 971 | Table t( infile_, Table::Old ) ; |
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| 972 | t.deepCopy( name, Table::New, False, t.endianFormat(), True ) ; |
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| 973 | tab = Table( name, Table::Update ) ; |
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[2356] | 974 | } |
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[2371] | 975 | } |
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