void LoadFlexiNexus::load2DWorkspace(NeXus::File *fin) {
Mantid::DataObjects::Workspace2D_sptr ws;
int nSpectra, spectraLength;
std::vector<int> data;
// read the data first
fin->getDataCoerce(data);
Info inf = fin->getInfo();
if (inf.dims.size() == 1) {
nSpectra = 1;
spectraLength = static_cast<int>(inf.dims[0]);
} else {
nSpectra = static_cast<int>(inf.dims[0]);
spectraLength = static_cast<int>(inf.dims[1]);
}
g_log.debug() << "Reading " << nSpectra << " spectra of length "
<< spectraLength << "." << std::endl;
// need to locate x-axis data too.....
std::map<std::string, std::string>::const_iterator it;
std::vector<double> xData;
if ((it = dictionary.find("x-axis")) == dictionary.end()) {
xData.resize(spectraLength);
for (int i = 0; i < spectraLength; i++) {
xData[i] = (double)i;
}
} else {
if (safeOpenpath(fin, it->second)) {
fin->getDataCoerce(xData);
}
}
// need to locate y-axis data too.....
std::vector<double> yData;
if ((it = dictionary.find("y-axis")) == dictionary.end()) {
yData.resize(nSpectra);
for (int i = 0; i < nSpectra; i++) {
yData[i] = (double)i;
}
} else {
if (safeOpenpath(fin, it->second)) {
fin->getDataCoerce(yData);
}
}
// fill the data.......
ws = boost::dynamic_pointer_cast<Mantid::DataObjects::Workspace2D>(
WorkspaceFactory::Instance().create("Workspace2D", nSpectra,
spectraLength, spectraLength));
for (int wsIndex = 0; wsIndex < nSpectra; wsIndex++) {
Mantid::MantidVec &Y = ws->dataY(wsIndex);
for (int j = 0; j < spectraLength; j++) {
Y[j] = data[spectraLength * wsIndex + j];
}
// Create and fill another vector for the errors, containing sqrt(count)
Mantid::MantidVec &E = ws->dataE(wsIndex);
std::transform(Y.begin(), Y.end(), E.begin(), dblSqrt);
ws->setX(wsIndex, xData);
// Xtof ws->getAxis(1)->spectraNo(i)= i;
ws->getSpectrum(wsIndex)
->setSpectrumNo(static_cast<specid_t>(yData[wsIndex]));
ws->getSpectrum(wsIndex)
->setDetectorID(static_cast<detid_t>(yData[wsIndex]));
}
ws->setYUnit("Counts");
// assign an x-axis-name
if ((it = dictionary.find("x-axis-name")) == dictionary.end()) {
const std::string xname("no axis name found");
ws->getAxis(0)->title() = xname;
} else {
const std::string xname(it->second);
ws->getAxis(0)->title() = xname;
if (xname.compare("TOF") == 0) {
g_log.debug() << "Setting X-unit to be TOF" << std::endl;
ws->getAxis(0)->setUnit("TOF");
}
}
addMetaData(fin, ws, (ExperimentInfo_sptr)ws);
// assign the workspace
setProperty("OutputWorkspace", boost::dynamic_pointer_cast<Workspace>(ws));
}
