[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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[2361] | 9 | #include <casa/Arrays/ArrayPartMath.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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| 23 | #include <Scantable.h>
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[2364] | 24 | #include <MathUtils.h>
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| 25 |
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[2356] | 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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[2362] | 49 | ifno_ = -1 ;
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[2356] | 50 | nx_ = -1 ;
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| 51 | ny_ = -1 ;
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[2361] | 52 | npol_ = 0 ;
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| 53 | nchan_ = 0 ;
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| 54 | nrow_ = 0 ;
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[2356] | 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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[2361] | 59 | wtype_ = "UNIFORM" ;
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[2356] | 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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[2360] | 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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[2364] | 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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[2361] | 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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[2356] | 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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[2364] | 117 | void STGrid::setFunc( string convType,
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| 118 | int convSupport )
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[2356] | 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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[2361] | 155 | LogIO os( LogOrigin("STGrid", "grid", WHERE) ) ;
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[2356] | 156 |
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| 157 | // retrieve data
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[2360] | 158 | Cube<Float> spectra ;
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[2356] | 159 | Matrix<Double> direction ;
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[2360] | 160 | Cube<uChar> flagtra ;
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| 161 | Matrix<uInt> rflag ;
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[2361] | 162 | Matrix<Float> weight ;
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[2364] | 163 | double t0, t1 ;
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| 164 | t0 = mathutil::gettimeofday_sec() ;
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[2362] | 165 | getData( spectra, direction, flagtra, rflag, weight ) ;
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[2364] | 166 | t1 = mathutil::gettimeofday_sec() ;
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| 167 | os << "getData: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
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[2356] | 168 | IPosition sshape = spectra.shape() ;
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[2361] | 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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[2356] | 172 |
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| 173 | // flagtra: uChar -> Int
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| 174 | // rflag: uInt -> Int
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[2360] | 175 | Cube<Int> flagI ;
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| 176 | Matrix<Int> rflagI ;
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[2364] | 177 | t0 = mathutil::gettimeofday_sec() ;
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[2360] | 178 | toInt( &flagtra, &flagI ) ;
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| 179 | toInt( &rflag, &rflagI ) ;
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[2364] | 180 | t1 = mathutil::gettimeofday_sec() ;
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| 181 | os << "toInt: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
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[2356] | 182 |
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| 183 | // grid parameter
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[2362] | 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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[2356] | 192 |
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[2359] | 193 | // convolution kernel
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| 194 | Vector<Float> convFunc ;
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[2364] | 195 | t0 = mathutil::gettimeofday_sec() ;
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[2359] | 196 | setConvFunc( convFunc ) ;
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[2364] | 197 | t1 = mathutil::gettimeofday_sec() ;
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| 198 | os << "setConvFunc: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
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[2359] | 199 | //cout << "convSupport=" << convSupport_ << endl ;
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| 200 | //cout << "convFunc=" << convFunc << endl ;
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| 201 |
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[2356] | 202 | // world -> pixel
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| 203 | Matrix<Double> xypos( direction.shape(), 0.0 ) ;
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[2364] | 204 | t0 = mathutil::gettimeofday_sec() ;
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[2356] | 205 | toPixel( direction, xypos ) ;
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[2364] | 206 | t1 = mathutil::gettimeofday_sec() ;
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| 207 | os << "toPixel: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
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[2356] | 208 |
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[2361] | 209 | // call ggridsd
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[2356] | 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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[2360] | 212 | Cube<Complex> dataC( spectra.shape(), 0.0 ) ;
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[2356] | 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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[2359] | 219 | // Extend grid plane with convSupport_
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[2364] | 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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[2361] | 224 | IPosition gshape( 4, gnx, gny, npol_, nchan_ ) ;
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[2356] | 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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[2361] | 230 | Int *chanMap = new Int[nchan_] ;
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[2356] | 231 | {
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| 232 | Int *work_p = chanMap ;
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[2361] | 233 | for ( Int i = 0 ; i < nchan_ ; i++ ) {
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[2356] | 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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[2361] | 238 | Int *polMap = new Int[npol_] ;
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[2356] | 239 | {
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| 240 | Int *work_p = polMap ;
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[2361] | 241 | for ( Int i = 0 ; i < npol_ ; i++ ) {
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[2356] | 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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[2361] | 246 | Double *sumw_p = new Double[npol_*nchan_] ;
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[2356] | 247 | {
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| 248 | Double *work_p = sumw_p ;
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[2361] | 249 | for ( Int i = 0 ; i < npol_*nchan_ ; i++ ) {
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[2356] | 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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[2364] | 254 | t0 = mathutil::gettimeofday_sec() ;
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| 255 | Int irow = -1 ;
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[2356] | 256 | ggridsd( xypos_p,
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| 257 | data_p,
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[2361] | 258 | &npol_,
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| 259 | &nchan_,
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[2356] | 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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[2361] | 264 | &nrow_,
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[2356] | 265 | &irow,
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| 266 | gdata_p,
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| 267 | wdata_p,
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[2359] | 268 | &gnx,
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| 269 | &gny,
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[2361] | 270 | &npol_,
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| 271 | &nchan_,
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[2356] | 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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[2364] | 278 | t1 = mathutil::gettimeofday_sec() ;
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| 279 | os << "ggridsd: elapsed time is " << t1-t0 << " sec." << LogIO::POST ;
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[2356] | 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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[2364] | 291 | t0 = mathutil::gettimeofday_sec() ;
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[2356] | 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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[2361] | 296 | for ( Int ip = 0 ; ip < npol_ ; ip++ ) {
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| 297 | for ( Int ic = 0 ; ic < nchan_ ; ic++ ) {
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[2356] | 298 | IPosition pos( 4, ix, iy, ip, ic ) ;
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[2364] | 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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[2359] | 301 | if ( gwgtArr( gpos ) > 0.0 )
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| 302 | data_( pos ) = gdataArr( gpos ) / gwgtArr( gpos ) ;
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[2356] | 303 | }
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| 304 | }
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| 305 | }
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| 306 | }
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[2364] | 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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[2361] | 309 | //Matrix<Double> sumWeight( IPosition( 2, npol_, nchan_ ), sumw_p, TAKE_OVER ) ;
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| 310 | delete sumw_p ;
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[2356] | 311 | //cout << "sumWeight = " << sumWeight << endl ;
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[2364] | 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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[2356] | 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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[2359] | 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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[2356] | 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 ) {
|
---|
| 399 | cout << "No user preference in grid setting. Using default..." << endl ;
|
---|
| 400 | readQuantity( qcellx, "1.0arcmin" ) ;
|
---|
| 401 | qcelly = qcellx ;
|
---|
| 402 | }
|
---|
| 403 | else {
|
---|
| 404 | qcellx = Quantum<Double>( wx/nx_, "rad" ) ;
|
---|
| 405 | qcelly = Quantum<Double>( wy/ny_, "rad" ) ;
|
---|
| 406 | }
|
---|
| 407 | }
|
---|
| 408 | cellx_ = qcellx.getValue( "rad" ) ;
|
---|
| 409 | celly_ = qcelly.getValue( "rad" ) ;
|
---|
| 410 | if ( nx_ < 0 ) {
|
---|
| 411 | nx_ = Int( ceil( wx/cellx_ ) ) ;
|
---|
| 412 | ny_ = Int( ceil( wy/celly_ ) ) ;
|
---|
| 413 | }
|
---|
| 414 | }
|
---|
| 415 |
|
---|
[2362] | 416 | void STGrid::selectData( Table &tab )
|
---|
| 417 | {
|
---|
| 418 | Int ifno = ifno_ ;
|
---|
| 419 | Table taborg( infile_ ) ;
|
---|
| 420 | if ( ifno == -1 ) {
|
---|
| 421 | LogIO os( LogOrigin("STGrid","getData",WHERE) ) ;
|
---|
| 422 | // os << LogIO::SEVERE
|
---|
| 423 | // << "Please set IFNO before actual gridding"
|
---|
| 424 | // << LogIO::EXCEPTION ;
|
---|
| 425 | ROScalarColumn<uInt> ifnoCol( taborg, "IFNO" ) ;
|
---|
| 426 | ifno = ifnoCol( 0 ) ;
|
---|
| 427 | os << LogIO::WARN
|
---|
| 428 | << "IFNO is not given. Using default IFNO: " << ifno << LogIO::POST ;
|
---|
| 429 | }
|
---|
[2364] | 430 | // tab = taborg( taborg.col("IFNO") == ifno ) ;
|
---|
| 431 | TableExprNode node ;
|
---|
| 432 | node = taborg.col("IFNO") == ifno ;
|
---|
| 433 | if ( scanlist_.size() > 0 ) {
|
---|
| 434 | node = node && taborg.col("SCANNO").in( scanlist_ ) ;
|
---|
| 435 | }
|
---|
| 436 | tab = taborg( node ) ;
|
---|
[2362] | 437 | if ( tab.nrow() == 0 ) {
|
---|
| 438 | LogIO os( LogOrigin("STGrid","getData",WHERE) ) ;
|
---|
| 439 | os << LogIO::SEVERE
|
---|
[2365] | 440 | << "No corresponding rows for given selection: IFNO " << ifno
|
---|
| 441 | << " SCANNO " << scanlist_
|
---|
[2362] | 442 | << LogIO::EXCEPTION ;
|
---|
| 443 | }
|
---|
| 444 | }
|
---|
| 445 |
|
---|
| 446 | void STGrid::getData( Cube<Float> &spectra,
|
---|
[2356] | 447 | Matrix<Double> &direction,
|
---|
[2360] | 448 | Cube<uChar> &flagtra,
|
---|
[2361] | 449 | Matrix<uInt> &rflag,
|
---|
| 450 | Matrix<Float> &weight )
|
---|
[2356] | 451 | {
|
---|
[2362] | 452 | Table tab ;
|
---|
| 453 | selectData( tab ) ;
|
---|
[2360] | 454 | ROScalarColumn<uInt> polnoCol( tab, "POLNO" ) ;
|
---|
| 455 | Vector<uInt> pols = polnoCol.getColumn() ;
|
---|
| 456 | Vector<uInt> pollistOrg ;
|
---|
| 457 | uInt npolOrg = 0 ;
|
---|
| 458 | for ( uInt i = 0 ; i < pols.size() ; i++ ) {
|
---|
| 459 | if ( allNE( pollistOrg, pols[i] ) ) {
|
---|
| 460 | pollistOrg.resize( npolOrg+1, True ) ;
|
---|
| 461 | pollistOrg[npolOrg] = pols[i] ;
|
---|
| 462 | npolOrg++ ;
|
---|
| 463 | }
|
---|
| 464 | }
|
---|
| 465 | if ( pollist_.size() == 0 )
|
---|
| 466 | pollist_ = pollistOrg ;
|
---|
| 467 | else {
|
---|
| 468 | Vector<uInt> newlist ;
|
---|
| 469 | uInt newsize = 0 ;
|
---|
| 470 | for ( uInt i = 0 ; i < pollist_.size() ; i++ ) {
|
---|
| 471 | if ( anyEQ( pols, pollist_[i] ) ) {
|
---|
| 472 | newlist.resize( newsize+1, True ) ;
|
---|
| 473 | newlist[newsize] = pollist_[i] ;
|
---|
| 474 | newsize++ ;
|
---|
| 475 | }
|
---|
| 476 | }
|
---|
| 477 | pollist_ = newlist ;
|
---|
| 478 | }
|
---|
[2361] | 479 | npol_ = pollist_.size() ;
|
---|
[2360] | 480 | ROArrayColumn<uChar> tmpCol( tab, "FLAGTRA" ) ;
|
---|
[2361] | 481 | nchan_ = tmpCol( 0 ).nelements() ;
|
---|
| 482 | nrow_ = tab.nrow() / npolOrg ;
|
---|
| 483 | // cout << "npol_ = " << npol_ << endl ;
|
---|
| 484 | // cout << "nchan_ = " << nchan_ << endl ;
|
---|
| 485 | // cout << "nrow_ = " << nrow_ << endl ;
|
---|
| 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++ ) {
|
---|
[2360] | 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" ) ;
|
---|
[2361] | 497 | ROArrayColumn<Float> tsysCol( subt, "TSYS" ) ;
|
---|
| 498 | ROScalarColumn<Double> tintCol( subt, "INTERVAL" ) ;
|
---|
[2360] | 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 ) ;
|
---|
[2361] | 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 ) ;
|
---|
[2360] | 516 | }
|
---|
[2361] | 517 |
|
---|
| 518 | getWeight( weight, tsys, tint ) ;
|
---|
[2356] | 519 | }
|
---|
| 520 |
|
---|
[2361] | 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) ) ;
|
---|
[2362] | 569 | os << LogIO::WARN << "STGrid doesn't support assigning polarization-dependent weight. Use averaged weight over polarization." << LogIO::POST ;
|
---|
[2361] | 570 | }
|
---|
| 571 | }
|
---|
| 572 |
|
---|
[2360] | 573 | void STGrid::toInt( Array<uChar> *u, Array<Int> *v )
|
---|
[2356] | 574 | {
|
---|
[2360] | 575 | uInt len = u->nelements() ;
|
---|
[2356] | 576 | Int *int_p = new Int[len] ;
|
---|
| 577 | Bool deleteIt ;
|
---|
[2360] | 578 | const uChar *data_p = u->getStorage( deleteIt ) ;
|
---|
[2356] | 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 | }
|
---|
[2360] | 586 | u->freeStorage( data_p, deleteIt ) ;
|
---|
| 587 | v->takeStorage( u->shape(), int_p, TAKE_OVER ) ;
|
---|
[2356] | 588 | }
|
---|
| 589 |
|
---|
[2360] | 590 | void STGrid::toInt( Array<uInt> *u, Array<Int> *v )
|
---|
[2356] | 591 | {
|
---|
[2360] | 592 | uInt len = u->nelements() ;
|
---|
[2356] | 593 | Int *int_p = new Int[len] ;
|
---|
| 594 | Bool deleteIt ;
|
---|
[2360] | 595 | const uInt *data_p = u->getStorage( deleteIt ) ;
|
---|
[2356] | 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 | }
|
---|
[2360] | 603 | u->freeStorage( data_p, deleteIt ) ;
|
---|
| 604 | v->takeStorage( u->shape(), int_p, TAKE_OVER ) ;
|
---|
[2356] | 605 | }
|
---|
| 606 |
|
---|
| 607 | void STGrid::toPixel( Matrix<Double> &world, Matrix<Double> &pixel )
|
---|
| 608 | {
|
---|
[2359] | 609 | // gridding will be done on (nx_+2*convSupport_) x (ny_+2*convSupport_)
|
---|
| 610 | // grid plane to avoid unexpected behavior on grid edge
|
---|
[2356] | 611 | Vector<Double> pixc( 2 ) ;
|
---|
[2364] | 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 ;
|
---|
[2356] | 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 | }
|
---|
[2364] | 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() ;
|
---|
[2356] | 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 ;
|
---|
[2363] | 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++ ) {
|
---|
[2356] | 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" ) {
|
---|
[2363] | 700 | // to take into account Gaussian tail
|
---|
[2356] | 701 | if ( convSupport_ < 0 )
|
---|
[2363] | 702 | convSupport_ = 12 ; // 3 * 4
|
---|
| 703 | else {
|
---|
| 704 | convSupport_ = userSupport_ * 4 ;
|
---|
| 705 | }
|
---|
[2356] | 706 | Int convSize = convSampling_ * ( 2 * convSupport_ + 2 ) ;
|
---|
| 707 | convFunc.resize( convSize ) ;
|
---|
| 708 | gaussFunc( convFunc ) ;
|
---|
| 709 | }
|
---|
[2359] | 710 | else if ( convType_ == "PB" ) {
|
---|
| 711 | if ( convSupport_ < 0 )
|
---|
| 712 | convSupport_ = 0 ;
|
---|
[2356] | 713 | pbFunc( convFunc ) ;
|
---|
[2359] | 714 | }
|
---|
[2356] | 715 | else {
|
---|
| 716 | throw AipsError( "Unsupported convolution function" ) ;
|
---|
| 717 | }
|
---|
| 718 | }
|
---|
| 719 |
|
---|
| 720 | string STGrid::saveData( string outfile )
|
---|
| 721 | {
|
---|
[2360] | 722 | //Int polno = 0 ;
|
---|
[2356] | 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() ;
|
---|
[2361] | 741 | Int nrow = nx_ * ny_ * npol_ ;
|
---|
| 742 | tab.rwKeywordSet().define( "nPol", npol_ ) ;
|
---|
[2360] | 743 | tab.addRow( nrow ) ;
|
---|
[2356] | 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++ ) {
|
---|
[2361] | 754 | for ( Int ipol = 0 ; ipol < npol_ ; ipol++ ) {
|
---|
[2356] | 755 | IPosition start( 4, ix, iy, ipol, 0 ) ;
|
---|
[2361] | 756 | IPosition end( 4, ix, iy, ipol, nchan_-1 ) ;
|
---|
[2356] | 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 ) ;
|
---|
[2360] | 763 | polnoCol.put( irow, pollist_[ipol] ) ;
|
---|
[2356] | 764 | irow++ ;
|
---|
| 765 | }
|
---|
| 766 | }
|
---|
| 767 | }
|
---|
| 768 | //cout << "outfile_=" << outfile_ << endl ;
|
---|
| 769 | out->makePersistent( outfile_ ) ;
|
---|
| 770 |
|
---|
| 771 | return outfile_ ;
|
---|
| 772 | }
|
---|
| 773 |
|
---|
| 774 | }
|
---|