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#include <casacore/ms/MeasurementSets/MeasurementSet.h>
#include <casacore/ms/MeasurementSets/MSTable.h>
#include <casacore/tables/Tables/TableDesc.h>
#include <casacore/tables/Tables/TableRow.h>
#include <casacore/tables/TaQL/ExprNode.h>
#include "measurementset.h"
#include "arraycolumniterator.h"
#include "scalarcolumniterator.h"
#include "date.h"
#include "../util/aologger.h"
#include "../strategy/control/strategywriter.h"
MeasurementSet::~MeasurementSet()
{
}
size_t MeasurementSet::BandCount(const std::string &location)
{
casacore::MeasurementSet ms(location);
return ms.spectralWindow().nrow();
}
void MeasurementSet::initializeOtherData()
{
casacore::MeasurementSet ms(_path);
_rowCount = ms.nrow();
initializeAntennas(ms);
initializeBands(ms);
initializeFields(ms);
initializeObservation(ms);
}
void MeasurementSet::initializeAntennas(casacore::MeasurementSet &ms)
{
casacore::MSAntenna antennaTable = ms.antenna();
size_t count = antennaTable.nrow();
casacore::ROArrayColumn<double> positionCol(antennaTable, "POSITION");
casacore::ROScalarColumn<casacore::String> nameCol(antennaTable, "NAME");
casacore::ROScalarColumn<double> diameterCol(antennaTable, "DISH_DIAMETER");
casacore::ROScalarColumn<casacore::String> mountCol(antennaTable, "MOUNT");
casacore::ROScalarColumn<casacore::String> stationCol(antennaTable, "STATION");
_antennas.resize(count);
for(size_t row=0; row!=count; ++row)
{
AntennaInfo info;
info.diameter = diameterCol(row);
info.id = row;
info.name = nameCol(row);
casacore::Array<double> position = positionCol(row);
casacore::Array<double>::iterator i = position.begin();
info.position.x = *i;
++i;
info.position.y = *i;
++i;
info.position.z = *i;
info.mount = mountCol(row);
info.station = stationCol(row);
_antennas[row] = info;
}
}
void MeasurementSet::initializeBands(casacore::MeasurementSet &ms)
{
casacore::MSSpectralWindow spectralWindowTable = ms.spectralWindow();
casacore::ROScalarColumn<int> numChanCol(spectralWindowTable, "NUM_CHAN");
casacore::ROArrayColumn<double> frequencyCol(spectralWindowTable, "CHAN_FREQ");
_bands.resize(spectralWindowTable.nrow());
for(size_t bandIndex=0; bandIndex!=spectralWindowTable.nrow(); ++bandIndex)
{
BandInfo band;
band.windowIndex = bandIndex;
size_t channelCount = numChanCol(bandIndex);
const casacore::Array<double> &frequencies = frequencyCol(bandIndex);
casacore::Array<double>::const_iterator frequencyIterator = frequencies.begin();
for(unsigned channel=0;channel<channelCount;++channel) {
ChannelInfo channelInfo;
channelInfo.frequencyIndex = channel;
channelInfo.frequencyHz = frequencies(casacore::IPosition(1, channel));
channelInfo.channelWidthHz = 0.0;
channelInfo.effectiveBandWidthHz = 0.0;
channelInfo.resolutionHz = 0.0;
band.channels.push_back(channelInfo);
++frequencyIterator;
}
_bands[bandIndex] = band;
}
}
void MeasurementSet::initializeFields(casacore::MeasurementSet &ms)
{
casacore::MSField fieldTable = ms.field();
casacore::ROArrayColumn<double> delayDirectionCol(fieldTable, fieldTable.columnName(casacore::MSFieldEnums::DELAY_DIR) );
casacore::ROScalarColumn<casacore::String> nameCol(fieldTable, fieldTable.columnName(casacore::MSFieldEnums::NAME) );
_fields.resize(fieldTable.nrow());
for(size_t row=0; row!=fieldTable.nrow(); ++row)
{
const casacore::Array<double> &delayDirection = delayDirectionCol(row);
casacore::Array<double>::const_iterator delayDirectionIterator = delayDirection.begin();
FieldInfo field;
field.fieldId = row;
field.delayDirectionRA = *delayDirectionIterator;
++delayDirectionIterator;
field.delayDirectionDec = *delayDirectionIterator;
field.name = nameCol(row);
_fields[row] = field;
}
}
void MeasurementSet::initializeObservation(casacore::MeasurementSet& ms)
{
casacore::MSObservation obsTable = ms.observation();
casacore::ROScalarColumn<casacore::String> telescopeNameCol(obsTable, obsTable.columnName(casacore::MSObservationEnums::TELESCOPE_NAME));
if(obsTable.nrow() != 0)
{
_telescopeName = telescopeNameCol(0);
for(size_t row=1; row!=obsTable.nrow(); ++row)
{
if(std::string(telescopeNameCol(row)) != _telescopeName)
throw std::runtime_error("The OBSERVATION table contains multiple entries from different telescopes. I do not know how to handle such sets.");
}
}
}
void MeasurementSet::GetDataDescToBandVector(std::vector<size_t>& dataDescToBand)
{
casacore::MeasurementSet ms(_path);
casacore::MSDataDescription dataDescTable = ms.dataDescription();
casacore::ScalarColumn<int>
spwIdCol(dataDescTable, dataDescTable.columnName(casacore::MSDataDescriptionEnums::SPECTRAL_WINDOW_ID));
dataDescToBand.resize(dataDescTable.nrow());
for(size_t dataDescId=0;dataDescId!=dataDescTable.nrow();++dataDescId)
{
dataDescToBand[dataDescId] = spwIdCol(dataDescId);
}
}
MSIterator::MSIterator(class MeasurementSet &ms, bool hasCorrectedData) : _row(0)
{
_table = new casacore::MeasurementSet(ms.Path());
_antenna1Col = new casacore::ROScalarColumn<int>(*_table, "ANTENNA1");
_antenna2Col = new casacore::ROScalarColumn<int>(*_table, "ANTENNA2");
_dataCol = new casacore::ROArrayColumn<casacore::Complex>(*_table, "DATA");
_flagCol = new casacore::ROArrayColumn<bool>(*_table, "FLAG");
if(hasCorrectedData)
_correctedDataCol = new casacore::ROArrayColumn<casacore::Complex>(*_table, "CORRECTED_DATA");
else
_correctedDataCol = 0;
_fieldCol = new casacore::ROScalarColumn<int>(*_table, "FIELD_ID");
_timeCol = new casacore::ROScalarColumn<double>(*_table, "TIME");
_scanNumberCol = new casacore::ROScalarColumn<int>(*_table, "SCAN_NUMBER");
_uvwCol = new casacore::ROArrayColumn<double>(*_table, "UVW");
_windowCol = new casacore::ROScalarColumn<int>(*_table, "DATA_DESC_ID");
}
MSIterator::~MSIterator()
{
delete _antenna1Col;
delete _antenna2Col;
delete _dataCol;
delete _correctedDataCol;
delete _flagCol;
delete _timeCol;
delete _fieldCol;
delete _table;
delete _scanNumberCol;
delete _uvwCol;
delete _windowCol;
}
void MeasurementSet::initializeMainTableData()
{
if(!_isMainTableDataInitialized)
{
AOLogger::Debug << "Initializing ms cache data...\n";
// we use a ptr to last, for faster insertion
std::set<double>::iterator obsTimePos = _observationTimes.end();
MSIterator iterator(*this, false);
double time = -1.0;
std::set<std::pair<size_t, size_t> > baselineSet;
std::set<Sequence> sequenceSet;
size_t prevFieldId = size_t(-1), sequenceId = size_t(-1);
for(size_t row=0;row<_rowCount;++row)
{
size_t a1 = iterator.Antenna1();
size_t a2 = iterator.Antenna2();
size_t fieldId = iterator.Field();
size_t spw = iterator.Window();
double cur_time = iterator.Time();
if(fieldId != prevFieldId)
{
prevFieldId = fieldId;
sequenceId++;
_observationTimesPerSequence.push_back(std::set<double>());
}
if(cur_time != time)
{
obsTimePos = _observationTimes.insert(obsTimePos, cur_time);
_observationTimesPerSequence[sequenceId].insert(cur_time);
time = cur_time;
}
baselineSet.insert(std::pair<size_t,size_t>(a1, a2));
sequenceSet.insert(Sequence(a1, a2, spw, sequenceId, fieldId));
++iterator;
}
for(std::set<std::pair<size_t, size_t> >::const_iterator i=baselineSet.begin(); i!=baselineSet.end(); ++i)
_baselines.push_back(*i);
for(std::set<Sequence>::const_iterator i=sequenceSet.begin(); i!=sequenceSet.end(); ++i)
_sequences.push_back(*i);
_isMainTableDataInitialized = true;
}
}
size_t MeasurementSet::PolarizationCount()
{
return PolarizationCount(Path());
}
size_t MeasurementSet::PolarizationCount(const std::string &filename)
{
casacore::MeasurementSet ms(filename);
casacore::Table polTable = ms.polarization();
casacore::ROArrayColumn<int> corTypeColumn(polTable, "CORR_TYPE");
casacore::Array<int> corType = corTypeColumn(0);
casacore::Array<int>::iterator iterend(corType.end());
size_t polarizationCount = 0;
for (casacore::Array<int>::iterator iter=corType.begin(); iter!=iterend; ++iter)
{
++polarizationCount;
}
return polarizationCount;
}
bool MeasurementSet::HasRFIConsoleHistory()
{
casacore::MeasurementSet ms(_path);
casacore::Table histtab(ms.history());
casacore::ROScalarColumn<casacore::String> application (histtab, "APPLICATION");
for(unsigned i=0;i<histtab.nrow();++i)
{
if(application(i) == "AOFlagger")
return true;
}
return false;
}
void MeasurementSet::GetAOFlaggerHistory(std::ostream &stream)
{
casacore::MeasurementSet ms(_path);
casacore::MSHistory histtab(ms.history());
casacore::ROScalarColumn<double> time (histtab, "TIME");
casacore::ROScalarColumn<casacore::String> application (histtab, "APPLICATION");
casacore::ROArrayColumn<casacore::String> cli (histtab, "CLI_COMMAND");
casacore::ROArrayColumn<casacore::String> parms (histtab, "APP_PARAMS");
for(unsigned i=0;i<histtab.nrow();++i)
{
if(application(i) == "AOFlagger")
{
stream << "====================\n"
"Command: " << cli(i)[0] << "\n"
"Date: " << Date::AipsMJDToDateString(time(i)) << "\n"
"Time: " << Date::AipsMJDToTimeString(time(i)) << "\n"
"Strategy: \n ---------- \n";
const casacore::Vector<casacore::String> appParamsVec = parms(i);
for(casacore::Vector<casacore::String>::const_iterator j=appParamsVec.begin();j!=appParamsVec.end();++j)
{
stream << *j << '\n';
}
stream << " ---------- \n";
}
}
}
void MeasurementSet::AddAOFlaggerHistory(const rfiStrategy::Strategy &strategy, const std::string &commandline)
{
// This has been copied from MSWriter.cc of NDPPP and altered (thanks, Ger!)
casacore::MeasurementSet ms(_path);
casacore::Table histtab(ms.keywordSet().asTable("HISTORY"));
histtab.reopenRW();
casacore::ScalarColumn<double> time (histtab, "TIME");
casacore::ScalarColumn<int> obsId (histtab, "OBSERVATION_ID");
casacore::ScalarColumn<casacore::String> message (histtab, "MESSAGE");
casacore::ScalarColumn<casacore::String> application (histtab, "APPLICATION");
casacore::ScalarColumn<casacore::String> priority (histtab, "PRIORITY");
casacore::ScalarColumn<casacore::String> origin (histtab, "ORIGIN");
casacore::ArrayColumn<casacore::String> parms (histtab, "APP_PARAMS");
casacore::ArrayColumn<casacore::String> cli (histtab, "CLI_COMMAND");
// Put all parset entries in a Vector<String>.
// Some WSRT MSs have a FixedShape APP_PARAMS and CLI_COMMAND column.
// For them, put the xml file in a single vector element (with newlines).
bool fixedShaped =
(parms.columnDesc().options() & casacore::ColumnDesc::FixedShape) != 0;
std::ostringstream ostr;
rfiStrategy::StrategyWriter writer;
writer.WriteToStream(strategy, ostr);
casacore::Vector<casacore::String> appParamsVec;
casacore::Vector<casacore::String> clivec;
clivec.resize(1);
clivec[0] = commandline;
if (fixedShaped) {
appParamsVec.resize(1);
appParamsVec[0] = ostr.str();
} else {
// Tokenize the string on '\n'
const std::string str = ostr.str();
size_t lineCount = std::count(str.begin(), str.end(), '\n');
appParamsVec.resize(lineCount+1);
casacore::Array<casacore::String>::contiter viter = appParamsVec.cbegin();
size_t curStringPos = 0;
for(size_t i=0;i<lineCount;++i)
{
size_t endPos = str.find('\n', curStringPos);
*viter = str.substr(curStringPos, endPos-curStringPos);
++viter;
curStringPos = endPos + 1;
}
if(curStringPos < str.size())
{
*viter = str.substr(curStringPos, str.size()-curStringPos);
}
}
uint rownr = histtab.nrow();
histtab.addRow();
time.put (rownr, casacore::Time().modifiedJulianDay()*24.0*3600.0);
obsId.put (rownr, 0);
message.put (rownr, "parameters");
application.put (rownr, "AOFlagger");
priority.put (rownr, "NORMAL");
origin.put (rownr, "standalone");
parms.put (rownr, appParamsVec);
cli.put (rownr, clivec);
}
std::string MeasurementSet::GetStationName() const
{
casacore::MeasurementSet ms(_path);
casacore::Table antennaTable(ms.antenna());
if(antennaTable.nrow() == 0)
throw std::runtime_error("GetStationName() : no rows in Antenna table");
casacore::ROScalarColumn<casacore::String> stationColumn(antennaTable, "STATION");
return stationColumn(0);
}
bool MeasurementSet::IsChannelZeroRubish()
{
try
{
const std::string station = GetStationName();
if(station != "LOFAR") return false;
// This is of course a hack, but its the best estimate we can make :-/ (easily)
const BandInfo bandInfo = GetBandInfo(0);
return (bandInfo.channels.size() == 256 || bandInfo.channels.size()==64);
} catch(std::exception &e)
{
return false;
}
}
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