/**
* Load the instrument
* @param instrName :: Instrument name
*/
void ISISLiveEventDataListener::loadInstrument(const std::string &instrName) {
// try to load the instrument. if it doesn't load give a warning and carry on
if (instrName.empty()) {
g_log.warning() << "Unable to read instrument name from DAE." << std::endl;
return;
}
const char *warningMessage = "Failed to load instrument ";
try {
g_log.notice() << "Loading instrument " << instrName << " ... "
<< std::endl;
API::Algorithm_sptr alg =
API::AlgorithmFactory::Instance().create("LoadInstrument", -1);
alg->initialize();
alg->setPropertyValue("InstrumentName", instrName);
alg->setProperty("Workspace", m_eventBuffer[0]);
alg->setProperty("RewriteSpectraMap", Mantid::Kernel::OptionalBool(false));
alg->setChild(true);
alg->execute();
// check if the instrument was loaded
if (!alg->isExecuted()) {
g_log.warning() << warningMessage << instrName << std::endl;
}
g_log.notice() << "Instrument loaded." << std::endl;
} catch (std::exception &e) {
g_log.warning() << warningMessage << instrName << std::endl;
g_log.warning() << e.what() << instrName << std::endl;
}
}
/** Rebin output workspace
*/
void CountEventsInPulses::rebin(DataObjects::EventWorkspace_sptr outputWS) {
const double xmin = outputWS->getTofMin();
const double xmax = outputWS->getTofMax();
if (xmax <= xmin) {
std::stringstream ss;
ss << "Tof_max " << xmax << " is less than Tof_min " << xmin;
throw std::runtime_error(ss.str());
}
std::stringstream ss;
ss << xmin << ", " << mPulseLength << ", " << xmax;
std::string binparam = ss.str();
g_log.debug() << "Binning parameter = " << binparam << std::endl;
API::Algorithm_sptr rebin =
this->createChildAlgorithm("Rebin", 0.8, 0.9, true);
rebin->initialize();
rebin->setProperty("InputWorkspace", outputWS);
rebin->setProperty("OutputWorkspace", outputWS);
rebin->setProperty("Params", binparam);
rebin->setProperty("PreserveEvents", true);
bool success = rebin->execute();
if (!success) {
g_log.warning() << "Rebin output event workspace failed! " << std::endl;
}
return;
}
/** Compress event
*/
DataObjects::EventWorkspace_sptr
CountEventsInPulses::compressEvents(DataObjects::EventWorkspace_sptr inputws,
double tolerance) {
API::Algorithm_sptr alg =
this->createChildAlgorithm("CompressEvents", 0.9, 1.0, true);
alg->initialize();
alg->setProperty("InputWorkspace", inputws);
alg->setProperty("OutputWorkspace", "TempWS");
alg->setProperty("Tolerance", tolerance);
bool successful = alg->execute();
DataObjects::EventWorkspace_sptr outputws;
if (!successful) {
// Failed
outputws = inputws;
g_log.warning() << "CompressEvents() Failed!" << std::endl;
} else {
// Successful
outputws = alg->getProperty("OutputWorkspace");
if (!outputws) {
g_log.error()
<< "CompressEvents failed as the output is not a MatrixWorkspace. "
<< std::endl;
throw std::runtime_error(
"SumSpectra failed as the output is not a MatrixWorkspace.");
}
/*
API::MatrixWorkspace_sptr testws = alg->getProperty("OutputWorkspace");
if (!testws)
{
g_log.error() << "CompressEvents failed as the output is not a
MatrixWorkspace. " << std::endl;
throw std::runtime_error("SumSpectra failed as the output is not a
MatrixWorkspace.");
}
else
{
outputws =
boost::dynamic_pointer_cast<DataObjects::EventWorkspace>(testws);
}
*/
}
return outputws;
}
/** Executes the algorithm
*/
void FilterByTime2::exec() {
DataObjects::EventWorkspace_const_sptr inWS =
this->getProperty("InputWorkspace");
if (!inWS) {
g_log.error() << "Input is not EventWorkspace" << std::endl;
throw std::invalid_argument("Input is not EventWorksapce");
} else {
g_log.debug() << "DB5244 InputWorkspace Name = " << inWS->getName()
<< std::endl;
}
double starttime = this->getProperty("StartTime");
double stoptime = this->getProperty("StopTime");
std::string absstarttime = this->getProperty("AbsoluteStartTime");
std::string absstoptime = this->getProperty("AbsoluteStopTime");
std::string start, stop;
if ((absstarttime != "") && (absstoptime != "") && (starttime <= 0.0) &&
(stoptime <= 0.0)) {
// Use the absolute string
start = absstarttime;
stop = absstoptime;
} else if ((absstarttime != "" || absstoptime != "") &&
(starttime > 0.0 || stoptime > 0.0)) {
throw std::invalid_argument(
"It is not allowed to provide both absolute time and relative time.");
} else {
// Use second
std::stringstream ss;
ss << starttime;
start = ss.str();
std::stringstream ss2;
ss2 << stoptime;
stop = ss2.str();
}
// 1. Generate Filters
g_log.debug() << "\nDB441: About to generate Filter. StartTime = "
<< starttime << " StopTime = " << stoptime << std::endl;
API::Algorithm_sptr genfilter =
createChildAlgorithm("GenerateEventsFilter", 0.0, 20.0, true, 1);
genfilter->initialize();
genfilter->setPropertyValue("InputWorkspace", inWS->getName());
genfilter->setPropertyValue("OutputWorkspace", "FilterWS");
genfilter->setProperty("StartTime", start);
genfilter->setProperty("StopTime", stop);
genfilter->setProperty("UnitOfTime", "Seconds");
genfilter->setProperty("FastLog", false);
bool sucgen = genfilter->execute();
if (!sucgen) {
g_log.error() << "Unable to generate event filters" << std::endl;
throw std::runtime_error("Unable to generate event filters");
} else {
g_log.debug() << "Filters are generated. " << std::endl;
}
API::Workspace_sptr filterWS = genfilter->getProperty("OutputWorkspace");
if (!filterWS) {
g_log.error() << "Unable to retrieve generated SplittersWorkspace object "
"from AnalysisDataService." << std::endl;
throw std::runtime_error("Unable to retrieve Splittersworkspace. ");
}
// 2. Filter events
g_log.debug() << "\nAbout to filter events. "
<< "\n";
API::Algorithm_sptr filter =
createChildAlgorithm("FilterEvents", 20.0, 100.0, true, 1);
filter->initialize();
filter->setPropertyValue("InputWorkspace", inWS->getName());
filter->setPropertyValue("OutputWorkspaceBaseName", "ResultWS");
filter->setProperty("SplitterWorkspace", filterWS);
filter->setProperty("FilterByPulseTime", true);
bool sucfilt = filter->execute();
if (!sucfilt) {
g_log.error() << "Unable to filter events" << std::endl;
throw std::runtime_error("Unable to filter events");
} else {
g_log.debug() << "Filter events is successful. " << std::endl;
}
DataObjects::EventWorkspace_sptr optws =
filter->getProperty("OutputWorkspace_0");
this->setProperty("OutputWorkspace", optws);
}