/** Load logs from Nexus file. Logs are expected to be in
* /raw_data_1/runlog group of the file. Call to this method must be done
* within /raw_data_1 group.
* @param ws :: The workspace to load the logs to.
* @param period :: The period of this workspace
*/
void LoadISISNexus2::loadLogs(DataObjects::Workspace2D_sptr ws, int period)
{
IAlgorithm_sptr alg = createSubAlgorithm("LoadNexusLogs", 0.0, 0.5);
alg->setPropertyValue("Filename", this->getProperty("Filename"));
alg->setProperty<MatrixWorkspace_sptr>("Workspace", ws);
try
{
alg->executeAsSubAlg();
}
catch(std::runtime_error&)
{
g_log.warning() << "Unable to load run logs. There will be no log "
<< "data associated with this workspace\n";
return;
}
ws->populateInstrumentParameters();
// If we loaded an icp_event log then create the necessary period logs
if( ws->run().hasProperty("icp_event") )
{
Kernel::Property *log = ws->run().getProperty("icp_event");
LogParser parser(log);
ws->mutableRun().addProperty(parser.createPeriodLog(period));
ws->mutableRun().addProperty(parser.createAllPeriodsLog());
}
}
/** Load logs from Nexus file. Logs are expected to be in
* /raw_data_1/runlog group of the file. Call to this method must be done
* within /raw_data_1 group.
* @param ws :: The workspace to load the logs to.
* @param entry :: Nexus entry
*/
void LoadISISNexus2::loadLogs(DataObjects::Workspace2D_sptr ws, NXEntry & entry)
{
IAlgorithm_sptr alg = createChildAlgorithm("LoadNexusLogs", 0.0, 0.5);
alg->setPropertyValue("Filename", this->getProperty("Filename"));
alg->setProperty<MatrixWorkspace_sptr>("Workspace", ws);
try
{
alg->executeAsChildAlg();
}
catch(std::runtime_error&)
{
g_log.warning() << "Unable to load run logs. There will be no log "
<< "data associated with this workspace\n";
return;
}
// For ISIS Nexus only, fabricate an addtional log containing an array of proton charge information from the periods group.
try
{
NXClass protonChargeClass = entry.openNXGroup("periods");
NXFloat periodsCharge = protonChargeClass.openNXFloat("proton_charge");
periodsCharge.load();
size_t nperiods = periodsCharge.dim0();
std::vector<double> chargesVector(nperiods);
std::copy(periodsCharge(), periodsCharge() + nperiods, chargesVector.begin());
ArrayProperty<double>* protonLogData = new ArrayProperty<double>("proton_charge_by_period", chargesVector);
ws->mutableRun().addProperty(protonLogData);
}
catch(std::runtime_error&)
{
this->g_log.debug("Cannot read periods information from the nexus file. This group may be absent.");
}
// Populate the instrument parameters.
ws->populateInstrumentParameters();
// Make log creator object and add the run status log
m_logCreator.reset(new ISISRunLogs(ws->run(), m_numberOfPeriods));
m_logCreator->addStatusLog(ws->mutableRun());
}
/** Executes the algorithm. Reading in the file and creating and populating
* the output workspace
*
* @throw Exception::FileError If the RAW file cannot be found/opened
* @throw std::invalid_argument If the optional properties are set to invalid values
*/
void LoadRaw2::exec()
{
// Retrieve the filename from the properties
m_filename = getPropertyValue("Filename");
LoadRawHelper *helper = new LoadRawHelper;
FILE* file = helper->openRawFile(m_filename);
isisRaw->ioRAW(file, true);
std::string title(isisRaw->r_title, 80);
g_log.information("**** Run title: "+ title + "***");
// Read in the number of spectra in the RAW file
m_numberOfSpectra = isisRaw->t_nsp1;
// Read the number of periods in this file
m_numberOfPeriods = isisRaw->t_nper;
// Read the number of time channels (i.e. bins) from the RAW file
const int channelsPerSpectrum = isisRaw->t_ntc1;
// Read in the time bin boundaries
const int lengthIn = channelsPerSpectrum + 1;
// Call private method to validate the optional parameters, if set
checkOptionalProperties();
// Calculate the size of a workspace, given its number of periods & spectra to read
specid_t total_specs;
if( m_interval || m_list)
{
if (m_interval)
{
total_specs = (m_spec_max-m_spec_min+1);
m_spec_max += 1;
}
else
total_specs = 0;
if (m_list)
{
if (m_interval)
{
for(std::vector<specid_t>::iterator it=m_spec_list.begin();it!=m_spec_list.end();)
if (*it >= m_spec_min && *it <m_spec_max)
{
it = m_spec_list.erase(it);
}
else
++it;
}
if (m_spec_list.size() == 0) m_list = false;
total_specs += static_cast<specid_t>(m_spec_list.size());
}
}
else
{
total_specs = m_numberOfSpectra;
// In this case want all the spectra, but zeroth spectrum is garbage so go from 1 to NSP1
m_spec_min = 1;
m_spec_max = m_numberOfSpectra + 1;
}
// If there is not enough memory use ManagedRawFileWorkspace2D.
if ( ConfigService::Instance().getString("ManagedRawFileWorkspace.DoNotUse") != "1" &&
m_numberOfPeriods == 1 && MemoryManager::Instance().goForManagedWorkspace(total_specs,lengthIn,channelsPerSpectrum) &&
total_specs == m_numberOfSpectra)
{
const std::string cache_option = getPropertyValue("Cache");
size_t option = find(m_cache_options.begin(),m_cache_options.end(),cache_option) - m_cache_options.begin();
DataObjects::Workspace2D_sptr localWorkspace =
DataObjects::Workspace2D_sptr(
new ManagedRawFileWorkspace2D(m_filename, static_cast<int>(option)));
progress(0.,"Reading raw file...");
helper->loadRunParameters(localWorkspace, isisRaw.get());
runLoadInstrument(localWorkspace );
runLoadMappingTable(localWorkspace );
runLoadLog(localWorkspace );
const int period_number = 1;
Property* log=createPeriodLog(period_number);
if(log)
{
localWorkspace->mutableRun().addLogData(log);
localWorkspace->mutableRun().addLogData(createCurrentPeriodLog(period_number));
}
localWorkspace->mutableRun().setProtonCharge(isisRaw->rpb.r_gd_prtn_chrg);
for (int i = 0; i < m_numberOfSpectra; ++i)
localWorkspace->getAxis(1)->setValue(i, i+1);
localWorkspace->populateInstrumentParameters();
setProperty("OutputWorkspace",localWorkspace);
return;
}
float* timeChannels = new float[lengthIn];
isisRaw->getTimeChannels(timeChannels, lengthIn);
// Put the read in array into a vector (inside a shared pointer)
boost::shared_ptr<MantidVec> timeChannelsVec
(new MantidVec(timeChannels, timeChannels + lengthIn));
// Need to extract the user-defined output workspace name
Property *ws = getProperty("OutputWorkspace");
std::string localWSName = ws->value();
Progress pr(this,0.,1.,total_specs * m_numberOfPeriods);
// Create the 2D workspace for the output
DataObjects::Workspace2D_sptr localWorkspace = boost::dynamic_pointer_cast<DataObjects::Workspace2D>
(WorkspaceFactory::Instance().create("Workspace2D",total_specs,lengthIn,lengthIn-1));
localWorkspace->setTitle(title);
localWorkspace->getAxis(0)->unit() = UnitFactory::Instance().create("TOF");
// Run parameters
helper->loadRunParameters(localWorkspace, isisRaw.get());
delete helper;
helper = NULL;
// Loop over the number of periods in the raw file, putting each period in a separate workspace
for (int period = 0; period < m_numberOfPeriods; ++period) {
if ( period > 0 )
{
localWorkspace = boost::dynamic_pointer_cast<DataObjects::Workspace2D>
(WorkspaceFactory::Instance().create(localWorkspace));
}
isisRaw->skipData(file,period*(m_numberOfSpectra+1));
int counter = 0;
for (int i = 1; i <= m_numberOfSpectra; ++i)
{
int histToRead = i + period*(m_numberOfSpectra+1);
if ((i >= m_spec_min && i < m_spec_max) ||
(m_list && find(m_spec_list.begin(),m_spec_list.end(),i) != m_spec_list.end()))
{
isisRaw->readData(file,histToRead);
// Copy the data into the workspace vector, discarding the 1st entry, which is rubbish
// But note that the last (overflow) bin is kept
MantidVec& Y = localWorkspace->dataY(counter);
Y.assign(isisRaw->dat1 + 1, isisRaw->dat1 + lengthIn);
// Fill the vector for the errors, containing sqrt(count)
MantidVec& E = localWorkspace->dataE(counter);
std::transform(Y.begin(), Y.end(), E.begin(), dblSqrt);
// Set the X vector pointer and spectrum number
localWorkspace->setX(counter, timeChannelsVec);
localWorkspace->getAxis(1)->setValue(counter, i);
// NOTE: Raw numbers go straight into the workspace
// - no account taken of bin widths/units etc.
++counter;
pr.report();
}
else
{
isisRaw->skipData(file,histToRead);
}
}
// Just a sanity check
assert(counter == total_specs);
std::string outputWorkspace = "OutputWorkspace";
if (period == 0)
{
// Only run the Child Algorithms once
runLoadInstrument(localWorkspace );
runLoadMappingTable(localWorkspace );
runLoadLog(localWorkspace );
const int period_number = period + 1;
Property* log=createPeriodLog(period_number);
if(log)
{
localWorkspace->mutableRun().addLogData(log);
localWorkspace->mutableRun().addLogData(createCurrentPeriodLog(period_number));
}
// Set the total proton charge for this run
// (not sure how this works for multi_period files)
localWorkspace->mutableRun().setProtonCharge(isisRaw->rpb.r_gd_prtn_chrg);
}
else // We are working on a higher period of a multiperiod raw file
{
// Create a WorkspaceProperty for the new workspace of a higher period
// The workspace name given in the OutputWorkspace property has _periodNumber appended to it
// (for all but the first period, which has no suffix)
std::stringstream suffix;
suffix << (period+1);
outputWorkspace += suffix.str();
std::string WSName = localWSName + "_" + suffix.str();
declareProperty(new WorkspaceProperty<DataObjects::Workspace2D>(outputWorkspace,WSName,Direction::Output));
g_log.information() << "Workspace " << WSName << " created. \n";
//remove previous period data
std::stringstream index;
index << (period);
std::string prevPeriod="PERIOD "+index.str();
localWorkspace->mutableRun().removeLogData(prevPeriod);
localWorkspace->mutableRun().removeLogData("current_period");
//add current period data
const int period_number = period + 1;
Property* log=createPeriodLog(period_number);
if(log)
{
localWorkspace->mutableRun().addLogData(log);
localWorkspace->mutableRun().addLogData(createCurrentPeriodLog(period_number));
}
}
// check if values stored in logfiles should be used to define parameters of the instrument
localWorkspace->populateInstrumentParameters();
// Assign the result to the output workspace property
setProperty(outputWorkspace,localWorkspace);
} // loop over periods
// Clean up
delete[] timeChannels;
//delete[] spectrum;
fclose(file);
}