本文整理汇总了C++中NXData::isValid方法的典型用法代码示例。如果您正苦于以下问题：C++ NXData::isValid方法的具体用法？C++ NXData::isValid怎么用？C++ NXData::isValid使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类NXData的用法示例。
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示例1: loadEventEntry
/** Load the event_workspace field
*
* @param wksp_cls
* @param progressStart
* @param progressRange
* @return
*/
API::MatrixWorkspace_sptr LoadNexusProcessed::loadEventEntry(NXData & wksp_cls, NXDouble & xbins,
const double& progressStart, const double& progressRange)
{
NXDataSetTyped<int64_t> indices_data = wksp_cls.openNXDataSet<int64_t>("indices");
indices_data.load();
boost::shared_array<int64_t> indices = indices_data.sharedBuffer();
int numspec = indices_data.dim0()-1;
int num_xbins = xbins.dim0();
if (num_xbins < 2) num_xbins = 2;
EventWorkspace_sptr ws = boost::dynamic_pointer_cast<EventWorkspace>
(WorkspaceFactory::Instance().create("EventWorkspace", numspec, num_xbins, num_xbins-1));
// Set the YUnit label
ws->setYUnit(indices_data.attributes("units"));
std::string unitLabel = indices_data.attributes("unit_label");
if (unitLabel.empty()) unitLabel = indices_data.attributes("units");
ws->setYUnitLabel(unitLabel);
//Handle optional fields.
// TODO: Handle inconsistent sizes
boost::shared_array<int64_t> pulsetimes;
if (wksp_cls.isValid("pulsetime"))
{
NXDataSetTyped<int64_t> pulsetime = wksp_cls.openNXDataSet<int64_t>("pulsetime");
pulsetime.load();
pulsetimes = pulsetime.sharedBuffer();
}
boost::shared_array<double> tofs;
if (wksp_cls.isValid("tof"))
{
NXDouble tof = wksp_cls.openNXDouble("tof");
tof.load();
tofs = tof.sharedBuffer();
}
boost::shared_array<float> error_squareds;
if (wksp_cls.isValid("error_squared"))
{
NXFloat error_squared = wksp_cls.openNXFloat("error_squared");
error_squared.load();
error_squareds = error_squared.sharedBuffer();
}
boost::shared_array<float> weights;
if (wksp_cls.isValid("weight"))
{
NXFloat weight = wksp_cls.openNXFloat("weight");
weight.load();
weights = weight.sharedBuffer();
}
// What type of event lists?
EventType type = TOF;
if (tofs && pulsetimes && weights && error_squareds)
type = WEIGHTED;
else if ((tofs && weights && error_squareds))
type = WEIGHTED_NOTIME;
else if (pulsetimes && tofs)
type = TOF;
else
throw std::runtime_error("Could not figure out the type of event list!");
// Create all the event lists
PARALLEL_FOR_NO_WSP_CHECK()
for (int wi=0; wi < numspec; wi++)
{
PARALLEL_START_INTERUPT_REGION
int64_t index_start = indices[wi];
int64_t index_end = indices[wi+1];
if (index_end >= index_start)
{
EventList & el = ws->getEventList(wi);
el.switchTo(type);
// Allocate all the required memory
el.reserve(index_end - index_start);
el.clearDetectorIDs();
for (long i=index_start; i<index_end; i++)
switch (type)
{
case TOF:
el.addEventQuickly( TofEvent( tofs[i], DateAndTime(pulsetimes[i])) );
break;
case WEIGHTED:
el.addEventQuickly( WeightedEvent( tofs[i], DateAndTime(pulsetimes[i]), weights[i], error_squareds[i]) );
break;
case WEIGHTED_NOTIME:
el.addEventQuickly( WeightedEventNoTime( tofs[i], weights[i], error_squareds[i]) );
break;
}
//.........这里部分代码省略.........