Exemplo n.º 1
0
/**
 * Gets the energy mode from a workspace based on the X unit.
 *
 * Units of dSpacing typically denote diffraction, hence Elastic.
 * All other units default to spectroscopy, therefore Indirect.
 *
 * @param ws Pointer to the workspace
 * @return Energy mode
 */
std::string IndirectTab::getEMode(Mantid::API::MatrixWorkspace_sptr ws) {
  Mantid::Kernel::Unit_sptr xUnit = ws->getAxis(0)->unit();
  std::string xUnitName = xUnit->caption();

  g_log.debug() << "X unit name is: " << xUnitName << '\n';

  if (boost::algorithm::find_first(xUnitName, "d-Spacing"))
    return "Elastic";

  return "Indirect";
}
Exemplo n.º 2
0
bool ApplyPaalmanPings::validate() {
  UserInputValidator uiv;

  uiv.checkDataSelectorIsValid("Sample", m_uiForm.dsSample);

  MatrixWorkspace_sptr sampleWs;

  bool useCan = m_uiForm.ckUseCan->isChecked();
  bool useCorrections = m_uiForm.ckUseCorrections->isChecked();

  if (!(useCan || useCorrections))
    uiv.addErrorMessage("Must use either container subtraction or corrections");

  if (useCan) {
    uiv.checkDataSelectorIsValid("Container", m_uiForm.dsContainer);

    // Check can and sample workspaces are the same "type" (reduced or S(Q, w))
    QString sample = m_uiForm.dsSample->getCurrentDataName();
    QString sampleType =
        sample.right(sample.length() - sample.lastIndexOf("_"));
    QString container = m_uiForm.dsContainer->getCurrentDataName();
    QString containerType =
        container.right(container.length() - container.lastIndexOf("_"));

    g_log.debug() << "Sample type is: " << sampleType.toStdString() << '\n';
    g_log.debug() << "Can type is: " << containerType.toStdString() << '\n';

    if (containerType != sampleType)
      uiv.addErrorMessage(
          "Sample and can workspaces must contain the same type of data.");
  }

  if (useCorrections) {
    if (m_uiForm.dsCorrections->getCurrentDataName().compare("") == 0) {
      uiv.addErrorMessage(
          "Use Correction must contain a corrections file or workspace.");
    } else {

      QString correctionsWsName = m_uiForm.dsCorrections->getCurrentDataName();
      WorkspaceGroup_sptr corrections =
          AnalysisDataService::Instance().retrieveWS<WorkspaceGroup>(
              correctionsWsName.toStdString());
      for (size_t i = 0; i < corrections->size(); i++) {
        // Check it is a MatrixWorkspace
        MatrixWorkspace_sptr factorWs =
            boost::dynamic_pointer_cast<MatrixWorkspace>(
                corrections->getItem(i));
        if (!factorWs) {
          QString msg = "Correction factor workspace " + QString::number(i) +
                        " is not a MatrixWorkspace";
          uiv.addErrorMessage(msg);
          continue;
        }

        // Check X unit is wavelength
        Mantid::Kernel::Unit_sptr xUnit = factorWs->getAxis(0)->unit();
        if (xUnit->caption() != "Wavelength") {
          QString msg = "Correction factor workspace " +
                        QString::fromStdString(factorWs->name()) +
                        " is not in wavelength";
          uiv.addErrorMessage(msg);
        }
      }
    }
  }

  // Show errors if there are any
  if (!uiv.isAllInputValid())
    emit showMessageBox(uiv.generateErrorMessage());

  return uiv.isAllInputValid();
}
Exemplo n.º 3
0
void CalculatePaalmanPings::run() {
  // Get correct corrections algorithm
  auto sampleShape = m_uiForm.cbSampleShape->currentText();
  auto algorithmName = sampleShape.replace(" ", "") + "PaalmanPingsCorrection";
  algorithmName = algorithmName.replace(
      "Annulus", "Cylinder"); // Use the cylinder algorithm for annulus

  API::BatchAlgorithmRunner::AlgorithmRuntimeProps absCorProps;
  auto absCorAlgo =
      AlgorithmManager::Instance().create(algorithmName.toStdString());
  absCorAlgo->initialize();

  // Sample details
  auto sampleWsName = m_uiForm.dsSample->getCurrentDataName();
  MatrixWorkspace_sptr sampleWs =
      AnalysisDataService::Instance().retrieveWS<MatrixWorkspace>(
          sampleWsName.toStdString());

  const auto emode = m_uiForm.cbEmode->currentText();
  absCorAlgo->setProperty("EMode", emode.toStdString());

  const auto efixed = m_uiForm.doubleEfixed->value();
  absCorAlgo->setProperty("EFixed", efixed);

  const long int numwave = m_uiForm.spNwave->value();
  absCorAlgo->setProperty("NumberWavelengths", numwave);

  const bool inter = m_uiForm.cbInterpolate->isChecked();
  absCorAlgo->setProperty("Interpolate", inter);

  // If not in wavelength then do conversion
  const auto sampleXUnit = sampleWs->getAxis(0)->unit();
  if (sampleXUnit->caption() != "Wavelength" && emode != "Efixed") {
    g_log.information(
        "Sample workspace not in wavelength, need to convert to continue.");
    absCorProps["SampleWorkspace"] =
        addConvertUnitsStep(sampleWs, "Wavelength");
  } else {
    absCorProps["SampleWorkspace"] = sampleWsName.toStdString();
  }

  absCorAlgo->setProperty(
      "SampleDensityType",
      m_uiForm.cbSampleDensity->currentText().toStdString());
  absCorAlgo->setProperty("SampleDensity", m_uiForm.spSampleDensity->value());

  absCorAlgo->setProperty(
      "SampleChemicalFormula",
      m_uiForm.leSampleChemicalFormula->text().toStdString());

  addShapeSpecificSampleOptions(absCorAlgo, sampleShape);

  // Can details
  if (m_uiForm.ckUseCan->isChecked()) {
    const auto canWsName =
        m_uiForm.dsContainer->getCurrentDataName().toStdString();
    MatrixWorkspace_sptr canWs =
        AnalysisDataService::Instance().retrieveWS<MatrixWorkspace>(canWsName);

    // If not in wavelength then do conversion
    Mantid::Kernel::Unit_sptr canXUnit = canWs->getAxis(0)->unit();
    if (canXUnit->caption() != "Wavelength" && emode != "Efixed") {
      g_log.information("Container workspace not in wavelength, need to "
                        "convert to continue.");
      absCorProps["CanWorkspace"] = addConvertUnitsStep(canWs, "Wavelength");
    } else {
      absCorProps["CanWorkspace"] = canWsName;
    }

    absCorAlgo->setProperty("CanDensityType",
                            m_uiForm.cbCanDensity->currentText().toStdString());
    absCorAlgo->setProperty("CanDensity", m_uiForm.spCanDensity->value());

    const auto canChemicalFormula = m_uiForm.leCanChemicalFormula->text();
    absCorAlgo->setProperty("CanChemicalFormula",
                            canChemicalFormula.toStdString());

    addShapeSpecificCanOptions(absCorAlgo, sampleShape);
  }

  // Generate workspace names
  auto nameCutIndex = sampleWsName.lastIndexOf("_");
  if (nameCutIndex == -1)
    nameCutIndex = sampleWsName.length();

  QString correctionType;
  switch (m_uiForm.cbSampleShape->currentIndex()) {
  case 0:
    correctionType = "flt";
    break;
  case 1:
    correctionType = "cyl";
    break;
  case 2:
    correctionType = "ann";
    break;
  }

  const auto outputWsName =
      sampleWsName.left(nameCutIndex) + "_" + correctionType + "_abs";

  absCorAlgo->setProperty("OutputWorkspace", outputWsName.toStdString());

  // Add corrections algorithm to queue
  m_batchAlgoRunner->addAlgorithm(absCorAlgo, absCorProps);

  // Run algorithm queue
  connect(m_batchAlgoRunner, SIGNAL(batchComplete(bool)), this,
          SLOT(absCorComplete(bool)));
  m_batchAlgoRunner->executeBatchAsync();

  // Set the result workspace for Python script export
  m_pythonExportWsName = outputWsName.toStdString();
}