// read the monitors list from the workspace and try to do it once for any
// particular ws;
bool MonIDPropChanger::monitorIdReader(
API::MatrixWorkspace_const_sptr inputWS) const {
// no workspace
if (!inputWS)
return false;
// no instrument
Geometry::Instrument_const_sptr pInstr = inputWS->getInstrument();
if (!pInstr)
return false;
std::vector<detid_t> mon = pInstr->getMonitors();
if (mon.empty()) {
if (iExistingAllowedValues.empty()) {
return false;
} else {
iExistingAllowedValues.clear();
return true;
}
}
// are these monitors really there?
// got the index of correspondent spectra.
std::vector<size_t> indexList = inputWS->getIndicesFromDetectorIDs(mon);
if (indexList.empty()) {
if (iExistingAllowedValues.empty()) {
return false;
} else {
iExistingAllowedValues.clear();
return true;
}
}
// index list can be less or equal to the mon list size (some monitors do not
// have spectra)
size_t mon_count =
(mon.size() < indexList.size()) ? mon.size() : indexList.size();
std::vector<int> allowed_values(mon_count);
for (size_t i = 0; i < mon_count; i++) {
allowed_values[i] = mon[i];
}
// are known values the same as the values we have just identified?
if (iExistingAllowedValues.size() != mon_count) {
iExistingAllowedValues.clear();
iExistingAllowedValues.assign(allowed_values.begin(), allowed_values.end());
return true;
}
// the monitor list has the same size as before. Is it equivalent to the
// existing one?
bool values_redefined = false;
for (size_t i = 0; i < mon_count; i++) {
if (iExistingAllowedValues[i] != allowed_values[i]) {
values_redefined = true;
iExistingAllowedValues[i] = allowed_values[i];
}
}
return values_redefined;
}
/** Make a map containing spectra indexes to group, the indexes could have come from
* file, or an array, spectra numbers ...
* @param workspace :: the user selected input workspace
* @param unUsedSpec :: spectra indexes that are not members of any group
*/
void GroupDetectors2::getGroups(API::MatrixWorkspace_const_sptr workspace,
std::vector<int64_t> &unUsedSpec)
{
// this is the map that we are going to fill
m_GroupSpecInds.clear();
// There are several properties that may contain the user data go through them in order of precedence
const std::string filename = getProperty("MapFile");
if ( ! filename.empty() )
{// The file property has been set so try to load the file
try
{
// check if XML file and if yes assume it is a XML grouping file
std::string filenameCopy(filename);
std::transform(filenameCopy.begin(), filenameCopy.end(), filenameCopy.begin(), tolower);
if ( (filenameCopy.find(".xml")) != std::string::npos )
{
processXMLFile(filename, workspace, unUsedSpec);
}
else
{
// the format of this input file format is described in "GroupDetectors2.h"
processFile(filename, workspace, unUsedSpec);
}
}
catch ( std::exception & )
{
g_log.error() << name() << ": Error reading input file " << filename << std::endl;
throw;
}
return;
}
const std::vector<specid_t> spectraList = getProperty("SpectraList");
const std::vector<detid_t> detectorList = getProperty("DetectorList");
const std::vector<size_t> indexList = getProperty("WorkspaceIndexList");
// only look at these other parameters if the file wasn't set
if ( ! spectraList.empty() )
{
workspace->getIndicesFromSpectra( spectraList, m_GroupSpecInds[0]);
g_log.debug() << "Converted " << spectraList.size() << " spectra numbers into spectra indices to be combined\n";
}
else
{// go through the rest of the properties in order of decreasing presidence, abort when we get the data we need ignore the rest
if ( ! detectorList.empty() )
{
// we are going to group on the basis of detector IDs, convert from detectors to workspace indices
workspace->getIndicesFromDetectorIDs( detectorList, m_GroupSpecInds[0]);
g_log.debug() << "Found " << m_GroupSpecInds[0].size() << " spectra indices from the list of " << detectorList.size() << " detectors\n";
}
else if ( ! indexList.empty() )
{
m_GroupSpecInds[0] = indexList;
g_log.debug() << "Read in " << m_GroupSpecInds[0].size() << " spectra indices to be combined\n";
}
//check we don't have an index that is too high for the workspace
size_t maxIn = static_cast<size_t>(workspace->getNumberHistograms() - 1);
std::vector<size_t>::const_iterator it = m_GroupSpecInds[0].begin();
for( ; it != m_GroupSpecInds[0].end() ; ++it )
{
if ( *it > maxIn )
{
g_log.error() << "Spectra index " << *it << " doesn't exist in the input workspace, the highest possible index is " << maxIn << std::endl;
throw std::out_of_range("One of the spectra requested to group does not exist in the input workspace");
}
}
}
if ( m_GroupSpecInds[0].empty() )
{
g_log.information() << name() << ": File, WorkspaceIndexList, SpectraList, and DetectorList properties are all empty\n";
throw std::invalid_argument("All list properties are empty, nothing to group");
}
// up date unUsedSpec, this is used to find duplicates and when the user has set KeepUngroupedSpectra
std::vector<size_t>::const_iterator index = m_GroupSpecInds[0].begin();
for ( ; index != m_GroupSpecInds[0].end(); ++index )
{// the vector<int> m_GroupSpecInds[0] must not index contain numbers that don't exist in the workspaace
if ( unUsedSpec[*index] != USED )
{
unUsedSpec[*index] = USED;
}
else g_log.warning() << "Duplicate index, " << *index << ", found\n";
}
}