LCOV - code coverage report
Current view: top level - synthesis/TransformMachines - SetJyGridFT.cc (source / functions) Hit Total Coverage
Test: casacpp_coverage.info Lines: 111 143 77.6 %
Date: 2024-11-06 17:42:47 Functions: 9 13 69.2 %

          Line data    Source code
       1             : //# SetJyGridFT.cc: Implementation of GridFT class
       2             : //# Copyright (C) 2012
       3             : //# Associated Universities, Inc. Washington DC, USA.
       4             : //#
       5             : //# This library is free software; you can redistribute it and/or modify it
       6             : //# under the terms of the GNU Library General Public License as published by
       7             : //# the Free Software Foundation; either version 2 of the License, or (at your
       8             : //# option) any later version.
       9             : //#
      10             : //# This library is distributed in the hope that it will be useful, but WITHOUT
      11             : //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      12             : //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
      13             : //# License for more details.
      14             : //#
      15             : //# You should have received a copy of the GNU Library General Public License
      16             : //# along with this library; if not, write to the Free Software Foundation,
      17             : //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
      18             : //#
      19             : //# Correspondence concerning AIPS++ should be addressed as follows:
      20             : //#        Internet email: casa-feedback@nrao.edu.
      21             : //#        Postal address: AIPS++ Project Office
      22             : //#                        National Radio Astronomy Observatory
      23             : //#                        520 Edgemont Road
      24             : //#                        Charlottesville, VA 22903-2475 USA
      25             : //#
      26             : /*
      27             :  * SetJyGridFT.cc
      28             :  *
      29             :  *  Created on: Jun 11, 2012
      30             :  *      Author: kgolap
      31             :  */
      32             : #include <msvis/MSVis/VisibilityIterator.h>
      33             : #include <casacore/casa/Quanta/UnitMap.h>
      34             : #include <casacore/casa/Quanta/UnitVal.h>
      35             : #include <casacore/measures/Measures/Stokes.h>
      36             : #include <casacore/coordinates/Coordinates/CoordinateSystem.h>
      37             : #include <casacore/coordinates/Coordinates/DirectionCoordinate.h>
      38             : #include <casacore/coordinates/Coordinates/SpectralCoordinate.h>
      39             : #include <casacore/coordinates/Coordinates/StokesCoordinate.h>
      40             : #include <casacore/coordinates/Coordinates/Projection.h>
      41             : #include <casacore/ms/MeasurementSets/MSColumns.h>
      42             : #include <casacore/casa/BasicSL/Constants.h>
      43             : #include <casacore/scimath/Mathematics/FFTServer.h>
      44             : #include <synthesis/TransformMachines/SetJyGridFT.h>
      45             : #include <casacore/scimath/Mathematics/RigidVector.h>
      46             : #include <msvis/MSVis/StokesVector.h>
      47             : #include <synthesis/TransformMachines/StokesImageUtil.h>
      48             : #include <msvis/MSVis/VisBuffer.h>
      49             : #include <msvis/MSVis/VisSet.h>
      50             : #include <casacore/images/Images/ImageInterface.h>
      51             : #include <casacore/images/Images/PagedImage.h>
      52             : #include <casacore/casa/Containers/Block.h>
      53             : #include <casacore/casa/Containers/Record.h>
      54             : #include <casacore/casa/Arrays/ArrayLogical.h>
      55             : #include <casacore/casa/Arrays/ArrayMath.h>
      56             : #include <casacore/casa/Arrays/Array.h>
      57             : #include <casacore/casa/Arrays/MaskedArray.h>
      58             : #include <casacore/casa/Arrays/Vector.h>
      59             : #include <casacore/casa/Arrays/Matrix.h>
      60             : #include <casacore/casa/Arrays/Cube.h>
      61             : #include <casacore/casa/Arrays/MatrixIter.h>
      62             : #include <casacore/casa/BasicSL/String.h>
      63             : #include <casacore/casa/Utilities/Assert.h>
      64             : #include <casacore/casa/Exceptions/Error.h>
      65             : #include <casacore/lattices/Lattices/ArrayLattice.h>
      66             : #include <casacore/measures/Measures/UVWMachine.h>
      67             : #include <casacore/lattices/Lattices/SubLattice.h>
      68             : #include <casacore/lattices/LRegions/LCBox.h>
      69             : #include <casacore/lattices/Lattices/LatticeCache.h>
      70             : #include <casacore/lattices/LatticeMath/LatticeFFT.h>
      71             : #include <casacore/lattices/Lattices/LatticeIterator.h>
      72             : #include <casacore/lattices/Lattices/LatticeStepper.h>
      73             : #include <casacore/scimath/Mathematics/ConvolveGridder.h>
      74             : #include <casacore/casa/Utilities/CompositeNumber.h>
      75             : #include <casacore/casa/OS/Timer.h>
      76             : #include <sstream>
      77             : #ifdef _OPENMP
      78             : #include <omp.h>
      79             : #endif
      80             : 
      81             : using namespace casacore;
      82             : namespace casa { //# NAMESPACE CASA - BEGIN
      83             : using namespace casacore;
      84             :   //  using namespace casa::async;
      85             : 
      86             : #define NEED_UNDERSCORES
      87             : #if defined(NEED_UNDERSCORES)
      88             : #define sectdgridjy sectdgridjy_
      89             : #endif
      90             : 
      91             : extern "C" {
      92             : void sectdgridjy(Complex*,
      93             :                 const Int*,
      94             :                 const Int*,
      95             :                 const Int*,
      96             :                 const Int*,
      97             :                 const Int*,
      98             :                 const Complex*,
      99             :                 const Int*,
     100             :                 const Int*,
     101             :                 const Int *,
     102             :                 const Int *,
     103             :                  //support
     104             :                 const Int*,
     105             :                 const Int*,
     106             :                 const Double*,
     107             :                 const Int*,
     108             :                  const Int*,
     109             :                  //rbeg, rend, loc, off, phasor
     110             :                  const Int*,
     111             :                  const Int*,
     112             :                  const Int*,
     113             :                  const Int*,
     114             :                  const Complex*,
     115             :                  const Double*);
     116             : }
     117           4 : SetJyGridFT::SetJyGridFT(Long icachesize, Int itilesize, String iconvType,
     118             :                    MPosition mLocation, MDirection mTangent, Float padding,
     119           4 :                    Bool usezero, Bool useDoublePrec,const Vector<Double>& frequencyscale, const Vector<Double>& scale):GridFT(icachesize, itilesize, iconvType,
     120           4 :                                    mLocation, mTangent, padding, usezero,       useDoublePrec), freqscale_p(frequencyscale),
     121           4 :                                    scale_p(scale) {
     122             : 
     123           4 :   machineName_p="SetJyGridFT";
     124             : 
     125             :   
     126           4 : }
     127             : 
     128          24 :   SetJyGridFT::~SetJyGridFT(){
     129             :     
     130          24 :   }
     131             : 
     132           0 : SetJyGridFT::SetJyGridFT(const RecordInterface& stateRec)
     133           0 : : GridFT()
     134             : {
     135             :   // Construct from the input state record
     136           0 :   String error;
     137           0 :   if (!fromRecord(error, stateRec)) {
     138           0 :     throw (AipsError("Failed to create gridder: " + error));
     139             :   };
     140           0 : }
     141           8 : SetJyGridFT::SetJyGridFT(const SetJyGridFT& other) : GridFT()
     142             : {
     143           8 :   machineName_p=("SetJyGridFT");
     144           8 :   operator=(other);
     145           8 : }
     146             : 
     147           8 : SetJyGridFT& SetJyGridFT::operator=(const SetJyGridFT& other)
     148             : {
     149           8 :   if(this!=&other) {
     150             :     //Do the base parameters
     151           8 :     GridFT::operator=(other);
     152           8 :     freqscale_p.resize();
     153           8 :     freqscale_p=other.freqscale_p;
     154           8 :     scale_p.resize();
     155           8 :     scale_p=other.scale_p;
     156             :   }
     157           8 :   return *this;
     158             : }
     159             : 
     160           0 : FTMachine* SetJyGridFT::cloneFTM(){
     161           0 :     return new SetJyGridFT(*this);
     162             : }
     163           4 : void SetJyGridFT::setScale(const Vector<Double>& freq, const Vector<Double>& scale){
     164           4 :   freqscale_p.resize();
     165           4 :   freqscale_p=freq;
     166           4 :   scale_p.resize();
     167           4 :   scale_p=scale;
     168             : 
     169           4 : }
     170         644 : String SetJyGridFT::name() const{
     171             : 
     172         644 :         return String("SetJyGridFT");
     173             : }
     174           4 : void SetJyGridFT::initializeToVis(ImageInterface<Complex>& image,
     175             :                        const VisBuffer& vb){
     176           4 :         setFreqInterpolation(String("nearest"));
     177           4 :         GridFT::initializeToVis(image, vb);
     178           4 : }
     179             : 
     180           0 : Bool SetJyGridFT::toRecord(String& error,
     181             :                            RecordInterface& outRec, Bool withImage, const String diskimage)
     182             : {
     183           0 :   if(!GridFT::toRecord(error, outRec, withImage, diskimage))
     184           0 :     return false;
     185           0 :   outRec.define("freqscale", freqscale_p);
     186           0 :   outRec.define("scaleamp", scale_p);
     187           0 :   return true;
     188             : }
     189           0 : Bool SetJyGridFT::fromRecord(String& error,
     190             :                         const RecordInterface& inRec)
     191             : {
     192             :   
     193           0 :   if(!GridFT::fromRecord(error, inRec))
     194           0 :     return false;
     195           0 :   freqscale_p.resize();
     196           0 :   inRec.get("freqscale", freqscale_p);
     197           0 :   scale_p.resize();
     198           0 :   inRec.get("scaleamp", scale_p);
     199           0 :   machineName_p="SetJyGridFT";
     200           0 :   return true;
     201             : }
     202          72 : void SetJyGridFT::get(VisBuffer& vb, Int row){
     203             :   //Did somebody really want this version.
     204          72 :   if(scale_p.nelements()==0)
     205           0 :     return GridFT::get(vb,row);
     206             : 
     207          72 :   gridOk(gridder->cSupport()(0));
     208             :   // If row is -1 then we pass through all rows
     209             :   Int startRow, endRow, nRow;
     210          72 :   if (row < 0) {
     211          72 :     nRow=vb.nRow();
     212          72 :     startRow=0;
     213          72 :     endRow=nRow-1;
     214             :             //unnecessary zeroing
     215             :             //vb.modelVisCube()=Complex(0.0,0.0);
     216             :           } else {
     217           0 :             nRow=1;
     218           0 :             startRow=row;
     219           0 :             endRow=row;
     220             :             //unnecessary zeroing
     221             :             //vb.modelVisCube().xyPlane(row)=Complex(0.0,0.0);
     222             :           }
     223             : 
     224             :           // Get the uvws in a form that Fortran can use
     225          72 :           Matrix<Double> uvw(3, vb.uvw().nelements());
     226          72 :           uvw=0.0;
     227          72 :           Vector<Double> dphase(vb.uvw().nelements());
     228          72 :           dphase=0.0;
     229             :           //NEGATING to correct for an image inversion problem
     230       25344 :           for (Int i=startRow;i<=endRow;i++) {
     231       75816 :             for (Int idim=0;idim<2;idim++) uvw(idim,i)=-vb.uvw()(i)(idim);
     232       25272 :             uvw(2,i)=vb.uvw()(i)(2);
     233             :           }
     234          72 :           rotateUVW(uvw, dphase, vb);
     235          72 :           refocus(uvw, vb.antenna1(), vb.antenna2(), dphase, vb);
     236             : 
     237             : 
     238             : 
     239             :           //Check if ms has changed then cache new spw and chan selection
     240          72 :           if(vb.newMS())
     241           0 :             matchAllSpwChans(vb);
     242             : 
     243             : 
     244             :           //Here we redo the match or use previous match
     245             : 
     246             :           //Channel matching for the actual spectral window of buffer
     247          72 :           if(doConversion_p[vb.spectralWindow()]){
     248           0 :             matchChannel(vb.spectralWindow(), vb);
     249             :           }
     250             :           else{
     251          72 :             chanMap.resize();
     252          72 :             chanMap=multiChanMap_p[vb.spectralWindow()];
     253             :           }
     254             : 
     255             :           //cerr << "chanMap " << chanMap << endl;
     256             :           //No point in reading data if its not matching in frequency
     257          72 :           if(max(chanMap)==-1)
     258           0 :             return;
     259             : 
     260          72 :           Cube<Complex> data;
     261          72 :           Cube<Int> flags;
     262          72 :           getInterpolateArrays(vb, data, flags);
     263             : 
     264          72 :           Vector<Double> lsrfreq;
     265             :           Bool convert;
     266          72 :           InterpolateArray1D<Double, Double>::InterpolationMethod  meth= InterpolateArray1D<Double, Double>::nearestNeighbour;
     267          72 :           if(freqscale_p.nelements() > 2)
     268          72 :             meth= InterpolateArray1D<Double, Double>::linear;
     269          72 :           vb.lsrFrequency(vb.spectralWindow(), lsrfreq, convert);
     270          72 :           interpscale_p.resize(lsrfreq.nelements());
     271             :           InterpolateArray1D<Double,Double>::
     272          72 :                 interpolate(interpscale_p,lsrfreq, freqscale_p, scale_p,meth);
     273             : 
     274             : 
     275             : 
     276             :           //    IPosition s(data.shape());
     277          72 :           Int nvp=data.shape()(0);
     278          72 :           Int nvc=data.shape()(1);
     279          72 :           Int nvisrow=data.shape()(2);
     280             : 
     281             : 
     282             :           //cerr << "get flags " << min(flags) << "  " << max(flags) << endl;
     283             :           Complex *datStorage;
     284             :           Bool isCopy;
     285          72 :           datStorage=data.getStorage(isCopy);
     286             : 
     287             :           ///
     288          72 :           Cube<Int> loc(2, nvc, nvisrow);
     289          72 :           Cube<Int> off(2, nvc, nRow);
     290          72 :           Matrix<Complex> phasor(nvc, nRow);
     291          72 :           Int csamp=gridder->cSampling();
     292             :           Bool delphase;
     293             :           Bool del;
     294          72 :           Complex * phasorstor=phasor.getStorage(delphase);
     295          72 :           const Double * visfreqstor=interpVisFreq_p.getStorage(del);
     296          72 :           const Double * scalestor=uvScale.getStorage(del);
     297          72 :           const Double * offsetstor=uvOffset.getStorage(del);
     298          72 :           const Double* uvstor= uvw.getStorage(del);
     299          72 :           Int * locstor=loc.getStorage(del);
     300          72 :           Int * offstor=off.getStorage(del);
     301          72 :           const Double *dpstor=dphase.getStorage(del);
     302          72 :           const Double *freqscalestor=interpscale_p.getStorage(del);
     303             :           //Vector<Double> f1=interpVisFreq_p.copy();
     304          72 :           Int nvchan=nvc;
     305             :           Int irow;
     306          72 :         #pragma omp parallel default(none) private(irow) firstprivate(visfreqstor, nvchan, scalestor, offsetstor, csamp, phasorstor, uvstor, locstor, offstor, dpstor) shared(startRow, endRow) num_threads(4)
     307             :           {
     308             :         #pragma omp for
     309             :           for (irow=startRow; irow<=endRow; ++irow){
     310             :             locateuvw(uvstor,dpstor, visfreqstor, nvchan, scalestor, offsetstor, csamp,
     311             :                       locstor,
     312             :                       offstor, phasorstor, irow);
     313             :           }
     314             : 
     315             :           }//end pragma parallel
     316             : 
     317          72 :           Int rbeg=startRow+1;
     318          72 :           Int rend=endRow+1;
     319             : 
     320             : 
     321          72 :           Vector<Int> rowFlags(vb.nRow());
     322          72 :           rowFlags=0;
     323          72 :           rowFlags(vb.flagRow())=true;
     324          72 :           if(!usezero_p) {
     325       25344 :             for (Int rownr=startRow; rownr<=endRow; rownr++) {
     326       25272 :               if(vb.antenna1()(rownr)==vb.antenna2()(rownr)) rowFlags(rownr)=1;
     327             :             }
     328             :           }
     329             : 
     330             : 
     331             :           //cerr <<"offset " << min(off) << "  " <<max(off) << " length " << gridder->cFunction().shape() << endl;
     332             : 
     333             :           {
     334             :             Bool delgrid;
     335          72 :             const Complex* gridstor=griddedData.getStorage(delgrid);
     336          72 :             const Double * convfuncstor=(gridder->cFunction()).getStorage(del);
     337             : 
     338          72 :             const Int* pmapstor=polMap.getStorage(del);
     339          72 :             const Int *cmapstor=chanMap.getStorage(del);
     340          72 :             Int nc=nchan;
     341          72 :             Int np=npol;
     342          72 :             Int nxp=nx;
     343          72 :             Int nyp=ny;
     344          72 :             Int csupp=gridder->cSupport()(0);
     345          72 :             const Int * flagstor=flags.getStorage(del);
     346          72 :             const Int * rowflagstor=rowFlags.getStorage(del);
     347             : 
     348             : 
     349          72 :             Int npart=1;
     350             :         #ifdef _OPENMP
     351          72 :             Int nthreads=omp_get_max_threads();
     352          72 :             if (nthreads >3){
     353          72 :               npart=4;
     354             :             }
     355           0 :             else if(nthreads >1){
     356           0 :              npart=2;
     357             :             }
     358             :         #endif
     359          72 :             Int ix=0;
     360          72 :         #pragma omp parallel default(none) private(ix, rbeg, rend) firstprivate(datStorage, flagstor, rowflagstor, convfuncstor, pmapstor, cmapstor, gridstor, nxp, nyp, np, nc, csamp, csupp, nvp, nvc, nvisrow, phasorstor, locstor, offstor, freqscalestor) shared(npart) num_threads(npart)
     361             :             {
     362             :         #pragma omp for 
     363             :               for (ix=0; ix< npart; ++ix){
     364             :                 rbeg=ix*(nvisrow/npart)+1;
     365             :                 rend=(ix != (npart-1)) ? (rbeg+(nvisrow/npart)-1) : (rbeg+(nvisrow/npart)+nvisrow%npart-1) ;
     366             :                 //cerr << "rbeg " << rbeg << " rend " << rend << "  " << nvisrow << endl;
     367             : 
     368             :                 sectdgridjy(datStorage,
     369             :                           &nvp,
     370             :                           &nvc,
     371             :                           flagstor,
     372             :                           rowflagstor,
     373             :                           &nvisrow,
     374             :                           gridstor,
     375             :                           &nxp,
     376             :                           &nyp,
     377             :                           &np,
     378             :                           &nc,
     379             :                           &csupp,
     380             :                           &csamp,
     381             :                           convfuncstor,
     382             :                           cmapstor,
     383             :                           pmapstor,
     384             :                           &rbeg, &rend, locstor, offstor, phasorstor, freqscalestor);
     385             :               }//end pragma parallel
     386             :             }
     387          72 :             data.putStorage(datStorage, isCopy);
     388          72 :             griddedData.freeStorage(gridstor, delgrid);
     389             :             //cerr << "Get min max " << min(data) << "   " << max(data) << endl;
     390             :           }
     391          72 :           interpolateFrequencyFromgrid(vb, data, FTMachine::MODEL);
     392             : 
     393             : 
     394          72 : }
     395             : 
     396             : 
     397             : 
     398             : }

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