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#include <iostream>
#include <sstream>
#include <stdexcept>
#include "../algorithms/timefrequencystatistics.h"
#include "msimageset.h"
#include "../../msio/directbaselinereader.h"
#include "../../msio/indirectbaselinereader.h"
#include "../../msio/memorybaselinereader.h"
#include "../../util/logger.h"
namespace rfiStrategy {
void MSImageSet::Initialize()
{
Logger::Debug << "Initializing image set...\n";
Logger::Debug << "Antennas: " << _metaData.AntennaCount() << '\n';
_sequences = _metaData.GetSequences();
Logger::Debug << "Unique sequences: " << _sequences.size() << '\n';
if(_sequences.empty())
throw std::runtime_error("Trying to open a measurement set with no sequences");
initReader();
_bandCount = _metaData.BandCount();
_fieldCount = _metaData.FieldCount();
_sequencesPerBaselineCount = _metaData.SequenceCount();
Logger::Debug << "Bands: " << _bandCount << '\n';
}
void MSImageSet::initReader()
{
if(_reader == nullptr )
{
switch(_ioMode)
{
case IndirectReadMode: {
IndirectBaselineReader *indirectReader = new IndirectBaselineReader(_msFile);
indirectReader->SetReadUVW(_readUVW);
_reader = BaselineReaderPtr(indirectReader);
} break;
case DirectReadMode:
_reader = BaselineReaderPtr(new DirectBaselineReader(_msFile));
break;
case MemoryReadMode:
_reader = BaselineReaderPtr(new MemoryBaselineReader(_msFile));
break;
case AutoReadMode:
if(MemoryBaselineReader::IsEnoughMemoryAvailable(_msFile))
_reader = BaselineReaderPtr(new MemoryBaselineReader(_msFile));
else
_reader = BaselineReaderPtr(new DirectBaselineReader(_msFile));
break;
}
}
_reader->SetDataColumnName(_dataColumnName);
_reader->SetInterval(_intervalStart, _intervalEnd);
_reader->SetSubtractModel(_subtractModel);
_reader->SetReadFlags(_readFlags);
_reader->SetReadData(true);
}
size_t MSImageSet::EndTimeIndex(const ImageSetIndex &index) const
{
return _reader->MetaData().GetObservationTimesSet(GetSequenceId(index)).size();
}
std::vector<double> MSImageSet::ObservationTimesVector(const ImageSetIndex &index)
{
// StartIndex(msIndex), EndIndex(msIndex)
unsigned sequenceId = _sequences[index.Value()].sequenceId;
const std::set<double>& obsTimesSet = _reader->MetaData().GetObservationTimesSet(sequenceId);
std::vector<double> obs(obsTimesSet.begin(), obsTimesSet.end());
return obs;
}
TimeFrequencyMetaDataCPtr MSImageSet::createMetaData(const ImageSetIndex &index, std::vector<UVW> &uvw)
{
TimeFrequencyMetaData* metaData = new TimeFrequencyMetaData();
metaData->SetAntenna1(_metaData.GetAntennaInfo(GetAntenna1(index)));
metaData->SetAntenna2(_metaData.GetAntennaInfo(GetAntenna2(index)));
metaData->SetBand(_metaData.GetBandInfo(GetBand(index)));
metaData->SetField(_metaData.GetFieldInfo(GetField(index)));
metaData->SetObservationTimes(ObservationTimesVector(index));
if(_reader != nullptr)
{
metaData->SetUVW(uvw);
}
return TimeFrequencyMetaDataCPtr(metaData);
}
std::string MSImageSet::Description(const ImageSetIndex& index) const
{
std::stringstream sstream;
const MSMetaData::Sequence &sequence = _sequences[index.Value()];
size_t
antenna1 = sequence.antenna1,
antenna2 = sequence.antenna2,
band = sequence.spw,
sequenceId = sequence.sequenceId;
AntennaInfo info1 = GetAntennaInfo(antenna1);
AntennaInfo info2 = GetAntennaInfo(antenna2);
sstream
<< info1.station << ' ' << info1.name << " x " << info2.station << ' ' << info2.name;
if(BandCount() > 1)
{
BandInfo bandInfo = GetBandInfo(band);
double bandStart = round(bandInfo.channels.front().frequencyHz/100000.0)/10.0;
double bandEnd = round(bandInfo.channels.back().frequencyHz/100000.0)/10.0;
sstream
<< ", spw " << band << " (" << bandStart
<< "MHz -" << bandEnd << "MHz)";
}
if(SequenceCount() > 1)
{
sstream
<< ", seq " << sequenceId;
}
return sstream.str();
}
size_t MSImageSet::FindBaselineIndex(size_t antenna1, size_t antenna2, size_t band, size_t sequenceId) const
{
size_t index = 0;
for(std::vector<MSMetaData::Sequence>::const_iterator i=_sequences.begin();
i != _sequences.end() ; ++i)
{
bool antennaMatch = (i->antenna1 == antenna1 && i->antenna2 == antenna2) || (i->antenna1 == antenna2 && i->antenna2 == antenna1);
if(antennaMatch && i->spw == band && i->sequenceId == sequenceId)
{
return index;
}
++index;
}
std::stringstream str;
str << "Baseline not found: "
<< "antenna1=" << antenna1 << ", "
<< "antenna2=" << antenna2 << ", "
<< "band=" << band << ", "
<< "sequenceId=" << sequenceId;
throw std::runtime_error(str.str());
}
void MSImageSet::AddReadRequest(const ImageSetIndex &index)
{
BaselineData newRequest(index);
_baselineData.push_back(newRequest);
}
void MSImageSet::PerformReadRequests(class ProgressListener& progress)
{
for(BaselineData& bd : _baselineData)
{
_reader->AddReadRequest(GetAntenna1(bd.Index()), GetAntenna2(bd.Index()), GetBand(bd.Index()), GetSequenceId(bd.Index()), StartTimeIndex(bd.Index()), EndTimeIndex(bd.Index()));
}
_reader->PerformReadRequests(progress);
for(std::vector<BaselineData>::iterator i=_baselineData.begin();i!=_baselineData.end();++i)
{
if(!i->Data().IsEmpty())
throw std::runtime_error("ReadRequest() called, but a previous read request was not completely processed by calling GetNextRequested().");
std::vector<UVW> uvw;
TimeFrequencyData data = _reader->GetNextResult(uvw);
i->SetData(data);
TimeFrequencyMetaDataCPtr metaData = createMetaData(i->Index(), uvw);
i->SetMetaData(metaData);
}
}
std::unique_ptr<BaselineData> MSImageSet::GetNextRequested()
{
std::unique_ptr<BaselineData> top(new BaselineData(_baselineData.front()));
_baselineData.erase(_baselineData.begin());
if(top->Data().IsEmpty())
throw std::runtime_error("Calling GetNextRequested(), but requests were not read with LoadRequests.");
return top;
}
void MSImageSet::AddWriteFlagsTask(const ImageSetIndex &index, std::vector<Mask2DCPtr> &flags)
{
size_t seqIndex = index.Value();
initReader();
size_t a1 = _sequences[seqIndex].antenna1;
size_t a2 = _sequences[seqIndex].antenna2;
size_t b = _sequences[seqIndex].spw;
size_t s = _sequences[seqIndex].sequenceId;
std::vector<Mask2DCPtr> allFlags;
if(flags.size() > _reader->Polarizations().size())
throw std::runtime_error("Trying to write more polarizations to image set than available");
else if(flags.size() < _reader->Polarizations().size())
{
if(flags.size() == 1)
for(size_t i=0;i<_reader->Polarizations().size();++i)
allFlags.emplace_back(flags[0]);
else
throw std::runtime_error("Incorrect number of polarizations in write action");
}
else allFlags = flags;
_reader->AddWriteTask(allFlags, a1, a2, b, s);
}
void MSImageSet::PerformWriteFlagsTask()
{
_reader->PerformFlagWriteRequests();
}
}
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