WorkspaceCreationHelper.cpp

/*********************************************************************************
 *  PLEASE READ THIS!!!!!!!
 *
 *  This collection of functions MAY NOT be used in any test from a package
 *below
 *  DataObjects (e.g. Kernel, Geometry, API).
 *  Conversely, this file MAY NOT be modified to use anything from a package
 *higher
 *  than DataObjects (e.g. any algorithm), even if going via the factory.
 *********************************************************************************/
#include "MantidTestHelpers/WorkspaceCreationHelper.h"
#include "MantidTestHelpers/ComponentCreationHelper.h"
#include "MantidTestHelpers/InstrumentCreationHelper.h"

#include "MantidHistogramData/LinearGenerator.h"
#include "MantidAPI/Run.h"
#include "MantidAPI/IAlgorithm.h"
#include "MantidAPI/Algorithm.h"
#include "MantidAPI/DetectorInfo.h"
#include "MantidAPI/Sample.h"
#include "MantidAPI/SpectraAxis.h"
#include "MantidAPI/SpectrumInfo.h"
#include "MantidAPI/NumericAxis.h"
#include "MantidAPI/WorkspaceGroup.h"
#include "MantidDataObjects/PeaksWorkspace.h"
#include "MantidDataObjects/WorkspaceCreation.h"
#include "MantidGeometry/Instrument/Detector.h"
#include "MantidGeometry/Instrument/Goniometer.h"
#include "MantidGeometry/Instrument/ParameterMap.h"
#include "MantidGeometry/Instrument/ReferenceFrame.h"
#include "MantidGeometry/Instrument/Component.h"
#include "MantidGeometry/Objects/ShapeFactory.h"
#include "MantidGeometry/Crystal/OrientedLattice.h"
#include "MantidKernel/MersenneTwister.h"
#include "MantidKernel/TimeSeriesProperty.h"
#include "MantidKernel/UnitFactory.h"
#include "MantidKernel/VectorHelper.h"
#include "MantidKernel/make_unique.h"

#include <cmath>
#include <sstream>

namespace WorkspaceCreationHelper {
using namespace Mantid;
using namespace Mantid::DataObjects;
using namespace Mantid::Kernel;
using namespace Mantid::API;
using namespace Mantid::Geometry;
using namespace Mantid::HistogramData;
using Mantid::MantidVec;
using Mantid::MantidVecPtr;

MockAlgorithm::MockAlgorithm(size_t nSteps) {
  m_Progress = Mantid::Kernel::make_unique<API::Progress>(this, 0, 1, nSteps);
}

EPPTableRow::EPPTableRow(const double peakCentre_, const double sigma_,
                         const double height_, const FitStatus fitStatus_)
    : peakCentre(peakCentre_), peakCentreError(0), sigma(sigma_), sigmaError(0),
      height(height_), heightError(0), chiSq(0), fitStatus(fitStatus_) {}

/**
 * @param name :: The name of the workspace
 * @param ws :: The workspace object
 */
void storeWS(const std::string &name, Mantid::API::Workspace_sptr ws) {
  Mantid::API::AnalysisDataService::Instance().add(name, ws);
}

/**
 * Deletes a workspace
 * @param name :: The name of the workspace
 */
void removeWS(const std::string &name) {
  Mantid::API::AnalysisDataService::Instance().remove(name);
}

/**
  * Creates bin or point based histograms based on the data passed
  * in for Y and E values and the bool specified.
  *
  * @param isHistogram:: Specifies whether the returned histogram
  * should use points or bin edges for the x axis. True gives bin edges.
  * @param yAxis:: Takes an rvalue (move) of the y axis for the new histogram
  * @param eAxis:: Takes an rvalue (move) of the e axis for the new histogram
  *
  * @return:: Returns a histogram with the user specified X axis type
  * and the data the user passed in.
  */
template <typename YType, typename EType>
Histogram createHisto(bool isHistogram, YType &&yAxis, EType &&eAxis) {
  // We don't need to check if y.size() == e.size() as the histogram
  // type does this at construction
  const size_t yValsSize = yAxis.size();
  if (isHistogram) {
    BinEdges xAxis(yValsSize + 1, LinearGenerator(1, 1));
    Histogram histo{std::move(xAxis), std::move(yAxis), std::move(eAxis)};
    return histo;
  } else {
    Points xAxis(yValsSize, LinearGenerator(1, 1));
    Histogram pointsHisto{std::move(xAxis), std::move(yAxis), std::move(eAxis)};
    return pointsHisto;
  }
}

Workspace2D_sptr create1DWorkspaceRand(int size, bool isHisto) {

  MersenneTwister randomGen(DateAndTime::getCurrentTime().nanoseconds(), 0,
                            std::numeric_limits<int>::max());

  auto randFunc = [&randomGen] { return randomGen.nextValue(); };
  Counts counts(size, randFunc);
  CountStandardDeviations errorVals(size, randFunc);

  auto generatedHisto = createHisto(isHisto, counts, errorVals);
  auto retVal = boost::make_shared<Workspace2D>();
  retVal->initialize(1, std::move(generatedHisto));
  return retVal;
}

Workspace2D_sptr create1DWorkspaceConstant(int size, double value, double error,
                                           bool isHisto) {
  Counts yVals(size, value);
  CountStandardDeviations errVals(size, error);
  auto generatedHisto = createHisto(isHisto, yVals, errVals);

  auto retVal = boost::make_shared<Workspace2D>();
  retVal->initialize(1, std::move(generatedHisto));
  return retVal;
}

Workspace2D_sptr create1DWorkspaceConstantWithXerror(int size, double value,
                                                     double error,
                                                     double xError,
                                                     bool isHisto) {
  auto ws = create1DWorkspaceConstant(size, value, error, isHisto);
  auto dx1 = Kernel::make_cow<HistogramData::HistogramDx>(size, xError);
  ws->setSharedDx(0, dx1);
  return ws;
}

Workspace2D_sptr create1DWorkspaceFib(int size, bool isHisto) {
  BinEdges xVals(size + 1, LinearGenerator(1, 1));
  Counts yVals(size, FibSeries<double>());
  CountStandardDeviations errVals(size);

  auto generatedHisto = createHisto(isHisto, yVals, errVals);
  auto retVal = boost::make_shared<Workspace2D>();
  retVal->initialize(1, std::move(generatedHisto));
  return retVal;
}

Workspace2D_sptr create2DWorkspace(int nhist, int numBoundaries) {
  return create2DWorkspaceBinned(nhist, numBoundaries);
}

/** Create a Workspace2D where the Y value at each bin is
 * == to the workspace index
 * @param nhist :: # histograms
 * @param numBoundaries :: # of bins
 * @return Workspace2D
 */
Workspace2D_sptr create2DWorkspaceWhereYIsWorkspaceIndex(int nhist,
                                                         int numBoundaries) {
  Workspace2D_sptr out = create2DWorkspaceBinned(nhist, numBoundaries);
  for (int workspaceIndex = 0; workspaceIndex < nhist; workspaceIndex++) {
    std::vector<double> yValues(numBoundaries,
                                static_cast<double>(workspaceIndex));
    out->mutableY(workspaceIndex) = std::move(yValues);
  }

  return out;
}

Workspace2D_sptr create2DWorkspaceThetaVsTOF(int nHist, int nBins) {

  Workspace2D_sptr outputWS = create2DWorkspaceBinned(nHist, nBins);
  auto const newAxis = new NumericAxis(nHist);
  outputWS->replaceAxis(1, newAxis);
  newAxis->unit() = boost::make_shared<Units::Degrees>();
  for (int i = 0; i < nHist; ++i) {
    newAxis->setValue(i, i + 1);
  }

  return outputWS;
}

Workspace2D_sptr
create2DWorkspaceWithValues(int64_t nHist, int64_t nBins, bool isHist,
                            const std::set<int64_t> &maskedWorkspaceIndices,
                            double xVal, double yVal, double eVal) {
  auto x1 = Kernel::make_cow<HistogramData::HistogramX>(
      isHist ? nBins + 1 : nBins, LinearGenerator(xVal, 1.0));
  Counts y1(nBins, yVal);
  CountStandardDeviations e1(nBins, eVal);
  auto retVal = boost::make_shared<Workspace2D>();
  retVal->initialize(nHist, isHist ? nBins + 1 : nBins, nBins);
  for (int i = 0; i < nHist; i++) {
    retVal->setX(i, x1);
    retVal->setCounts(i, y1);