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#include "MantidAlgorithms/CropToComponent.h"
#include "MantidKernel/make_unique.h"
#include "MantidKernel/ArrayProperty.h"
#include "MantidAPI/MatrixWorkspace.h"
#include "MantidAPI/AlgorithmManager.h"
#include "MantidGeometry/Instrument.h"
#include "MantidGeometry/IDetector.h"
namespace {
void getDetectors(Mantid::API::MatrixWorkspace_sptr workspace, const std::vector<std::string>& componentNames, std::vector<Mantid::Geometry::IDetector_const_sptr>& detectors) {
auto instrument = workspace->getInstrument();
for (const auto &componentName : componentNames) {
instrument->getDetectorsInBank(detectors, componentName);
}
}
void getDetectorIDs(std::vector<Mantid::Geometry::IDetector_const_sptr>&detectors, std::vector<Mantid::detid_t>& detectorIDs){
auto numberOfDetectors = detectors.size();
for (size_t index = 0; index < numberOfDetectors; ++index) {
auto det = detectors[index];
detectorIDs[index] = det->getID();
}
}
}
namespace Mantid
{
namespace Algorithms
{
using Mantid::Kernel::Direction;
using Mantid::API::WorkspaceProperty;
// Register the algorithm into the AlgorithmFactory
DECLARE_ALGORITHM(CropToComponent)
//----------------------------------------------------------------------------------------------
/// Algorithms name for identification. @see Algorithm::name
const std::string CropToComponent::name() const { return "CropToComponent"; }
/// Algorithm's version for identification. @see Algorithm::version
int CropToComponent::version() const { return 1; }
/// Algorithm's category for identification. @see Algorithm::category
const std::string CropToComponent::category() const
{
return "TODO: FILL IN A CATEGORY";
}
/// Algorithm's summary for use in the GUI and help. @see Algorithm::summary
const std::string CropToComponent::summary() const
{
return "Crops a workspace to a set of components.";
}
//----------------------------------------------------------------------------------------------
/** Initialize the algorithm's properties.
*/
void CropToComponent::init()
{
declareProperty(Kernel::make_unique<WorkspaceProperty<Mantid::API::MatrixWorkspace>>(
"InputWorkspace", "", Direction::Input),
"An input workspace.");
declareProperty(Kernel::make_unique<WorkspaceProperty<Mantid::API::MatrixWorkspace>>(
"OutputWorkspace", "", Direction::Output),
"An output workspace.");
declareProperty(
Kernel::make_unique<Mantid::Kernel::ArrayProperty<std::string>>(
"ComponentNames"),
"List of component names to which the workspace is goign to be cropped "
"to.");
}
//----------------------------------------------------------------------------------------------
/** Execute the algorithm.
*/
void CropToComponent::exec()
{
// Get the names of the components
std::vector<std::string> componentNames = getProperty("ComponentNames");
Mantid::API::MatrixWorkspace_sptr inputWorkspace
= getProperty("InputWorkspace");
Mantid::API::MatrixWorkspace_sptr outputWorkspace
= getProperty("OutputWorkspace");
// Check if the component names are empty
if (componentNames.empty()) {
if (inputWorkspace == outputWorkspace) {
setProperty("OutputWorkpspace", inputWorkspace);
} else {
auto cloned_uptr = inputWorkspace->clone();
auto cloned_sptr
= boost::make_shared<Mantid::API::MatrixWorkspace_sptr>(
std::move(cloned_uptr));
setProperty("OutputWorkspace", cloned_sptr);
}
return;
}
// Get all detectors
std::vector<Mantid::Geometry::IDetector_const_sptr> detectors;
getDetectors(inputWorkspace, componentNames, detectors);
// Get the detector IDs from the Detectors
std::vector<detid_t> detectorIDs(detectors.size());
getDetectorIDs(detectors, detectorIDs);
// Run ExtractSpectra in order to obtain the cropped workspace
auto extract_alg
= Mantid::API::AlgorithmManager::Instance().createUnmanaged(
"ExtractSpectra");
extract_alg->setChild(true);
extract_alg->initialize();
extract_alg->setProperty("InputWorkspace", inputWorkspace);
extract_alg->setProperty("OutputWorkspace", outputWorkspace);
extract_alg->setProperty("DetectorList", detectorIDs);
extract_alg->execute();
Mantid::API::MatrixWorkspace_sptr result
= extract_alg->getProperty("OutputWorkspace");
// Set the output
setProperty("OutputWorkpspace", result);
}
} // namespace Algorithms
} // namespace Mantid