/**
* Get the sample component. Use the name provided as a property as the basis
*for the lookup as a priority.
*
* Throws if the name is invalid.
* @param inst : Instrument to search through
* @return : The component : The component object found.
*/
Mantid::Geometry::IComponent_const_sptr
SpecularReflectionAlgorithm::getSurfaceSampleComponent(
Mantid::Geometry::Instrument_const_sptr inst) const {
std::string sampleComponent = "some-surface-holder";
if (!isPropertyDefault("SampleComponentName")) {
sampleComponent = this->getPropertyValue("SampleComponentName");
}
auto searchResult = inst->getComponentByName(sampleComponent);
if (searchResult == nullptr) {
throw std::invalid_argument(sampleComponent +
" does not exist. Check input properties.");
}
return searchResult;
}
/**
* Get the detector component. Use the name provided as a property as the basis
*for the lookup as a priority.
*
* Throws if the name is invalid.
* @param workspace : Workspace from instrument with detectors
* @param isPointDetector : True if this is a point detector. Used to guess a
*name.
* @return The component : The component object found.
*/
boost::shared_ptr<const Mantid::Geometry::IComponent>
SpecularReflectionAlgorithm::getDetectorComponent(
MatrixWorkspace_sptr workspace, const bool isPointDetector) const {
boost::shared_ptr<const IComponent> searchResult;
if (!isPropertyDefault("SpectrumNumbersOfDetectors")) {
const std::vector<int> spectrumNumbers =
this->getProperty("SpectrumNumbersOfDetectors");
const bool strictSpectrumChecking =
this->getProperty("StrictSpectrumChecking");
checkSpectrumNumbers(spectrumNumbers, strictSpectrumChecking, g_log);
auto specToWorkspaceIndex = workspace->getSpectrumToWorkspaceIndexMap();
DetectorGroup_sptr allDetectors = boost::make_shared<DetectorGroup>();
const auto &spectrumInfo = workspace->spectrumInfo();
for (auto index : spectrumNumbers) {
const size_t spectrumNumber{static_cast<size_t>(index)};
auto it = specToWorkspaceIndex.find(index);
if (it == specToWorkspaceIndex.end()) {
std::stringstream message;
message << "Spectrum number " << spectrumNumber
<< " does not exist in the InputWorkspace";
throw std::invalid_argument(message.str());
}
const size_t workspaceIndex = it->second;
auto detector = workspace->getDetector(workspaceIndex);
if (spectrumInfo.isMasked(workspaceIndex))
g_log.warning() << "Adding a detector (ID:" << detector->getID()
<< ") that is flagged as masked.\n";
allDetectors->addDetector(detector);
}
searchResult = allDetectors;
} else {
Mantid::Geometry::Instrument_const_sptr inst = workspace->getInstrument();
std::string componentToCorrect =
isPointDetector ? "point-detector" : "linedetector";
if (!isPropertyDefault("DetectorComponentName")) {
componentToCorrect = this->getPropertyValue("DetectorComponentName");
}
searchResult = inst->getComponentByName(componentToCorrect);
if (searchResult == nullptr) {
throw std::invalid_argument(componentToCorrect +
" does not exist. Check input properties.");
}
}
return searchResult;
}
/**
* Gets the eFixed value from the workspace using the instrument parameters.
*
* @param ws Pointer to the workspace
* @return eFixed value
*/
double IndirectTab::getEFixed(Mantid::API::MatrixWorkspace_sptr ws) {
Mantid::Geometry::Instrument_const_sptr inst = ws->getInstrument();
if (!inst)
throw std::runtime_error("No instrument on workspace");
// Try to get the parameter form the base instrument
if (inst->hasParameter("Efixed"))
return inst->getNumberParameter("Efixed")[0];
// Try to get it form the analyser component
if (inst->hasParameter("analyser")) {
std::string analyserName = inst->getStringParameter("analyser")[0];
auto analyserComp = inst->getComponentByName(analyserName);
if (analyserComp && analyserComp->hasParameter("Efixed"))
return analyserComp->getNumberParameter("Efixed")[0];
}
throw std::runtime_error("Instrument has no efixed parameter");
}
/**
@param inst Instrument
@param bankName Name of detector bank
@param col Column number containing peak
@param row Row number containing peak
@param Edge Number of edge points for each bank
@return True if peak is on edge
*/
bool edgePixel(Mantid::Geometry::Instrument_const_sptr inst,
std::string bankName, int col, int row, int Edge) {
if (bankName == "None")
return false;
boost::shared_ptr<const Geometry::IComponent> parent =
inst->getComponentByName(bankName);
if (parent->type() == "RectangularDetector") {
boost::shared_ptr<const Geometry::RectangularDetector> RDet =
boost::dynamic_pointer_cast<const Geometry::RectangularDetector>(
parent);
return col < Edge || col >= (RDet->xpixels() - Edge) || row < Edge ||
row >= (RDet->ypixels() - Edge);
} else {
std::vector<Geometry::IComponent_const_sptr> children;
boost::shared_ptr<const Geometry::ICompAssembly> asmb =
boost::dynamic_pointer_cast<const Geometry::ICompAssembly>(parent);
asmb->getChildren(children, false);
int startI = 1;
if (children[0]->getName() == "sixteenpack") {
startI = 0;
parent = children[0];
children.clear();
boost::shared_ptr<const Geometry::ICompAssembly> asmb =
boost::dynamic_pointer_cast<const Geometry::ICompAssembly>(parent);
asmb->getChildren(children, false);
}
boost::shared_ptr<const Geometry::ICompAssembly> asmb2 =
boost::dynamic_pointer_cast<const Geometry::ICompAssembly>(children[0]);
std::vector<Geometry::IComponent_const_sptr> grandchildren;
asmb2->getChildren(grandchildren, false);
int NROWS = static_cast<int>(grandchildren.size());
int NCOLS = static_cast<int>(children.size());
// Wish pixels and tubes start at 1 not 0
return col - startI < Edge || col - startI >= (NCOLS - Edge) ||
row - startI < Edge || row - startI >= (NROWS - Edge);
}
return false;
}