Phi0Impact.test.cc

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2015 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Oliver Frost, Thomas Hauth <thomas.hauth@kit.edu>        *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
#include <tracking/trackFindingCDC/testFixtures/TrackFindingCDCTestWithSimpleSimulation.h>
 
#include <tracking/trackFindingCDC/hough/perigee/SimpleRLTaggedWireHitHoughTree.h>
#include <tracking/trackFindingCDC/hough/perigee/SimpleSegmentHoughTree.h>
#include <tracking/trackFindingCDC/hough/perigee/StandardBinSpec.h>
 
#include <tracking/trackFindingCDC/hough/algorithms/InPhi0ImpactBox.h>
 
#include <vector>
 
using namespace Belle2;
using namespace TrackFindingCDC;
using namespace PerigeeBinSpec;
 
namespace {
 
  TEST_F(TrackFindingCDCTestWithSimpleSimulation, hough_perigee_SimpleHitBasedHough_phi0_impact_onHits)
  {
    std::string svgFileName = "phi0_impact_on_hits.svg";
 
    Helix lowerHelix(0.00, 2.52033, -20, 0, 0);
    Helix higherHelix(0.00, 3.0718, 20, 0, 0);
 
    simulate({lowerHelix, higherHelix});
    saveDisplay(svgFileName);
 
    using SimpleRLTaggedWireHitHoughTree =
      SimpleRLTaggedWireHitHoughTree<InPhi0ImpactBox, phi0Divisions, impactDivisions>;
 
    SimpleRLTaggedWireHitHoughTree houghTree(maxLevel);
    using HoughBox = SimpleRLTaggedWireHitHoughTree::HoughBox;
 
    houghTree.assignArray<DiscretePhi0>(phi0BinsSpec.constructArray(), phi0BinsSpec.getNOverlap());
    //houghTree.assignArray<DiscreteImpact>(impactBinsSpec.constructArray(), impactBinsSpec.getNOverlap()); // Discrete
    houghTree.assignArray<ContinuousImpact>({{minImpact, maxImpact}}, impactBinsSpec.getOverlap()); // Continuous
    houghTree.initialize();
 
    // Execute the finding a couple of time to find a stable execution time.
    std::vector< std::pair<HoughBox, std::vector<CDCRLWireHit> > > candidates;
 
    // Is this still C++? Looks like JavaScript to me :-).
    TimeItResult timeItResult = timeIt(100, true, [&]() {
      houghTree.fell();
      houghTree.seed(m_axialWireHits);
 
      const double minWeight = 30.0;
      candidates = houghTree.find(minWeight);
      // candidates = houghTree.findBest(minWeight);
 
      ASSERT_EQ(m_mcTracks.size(), candidates.size());
      // Check for the parameters of the track candidates
      // The actual hit numbers are more than 30, but this is somewhat a lower bound
      for (size_t iCand = 0; iCand < candidates.size(); ++iCand) {
        EXPECT_GE(candidates[iCand].second.size(), 30);
      }
    });
 
    std::size_t nNodes = houghTree.getTree()->getNNodes();
    B2INFO("Tree generated " << nNodes << " nodes");
    houghTree.fell();
    houghTree.raze();
 
 
    size_t iColor = 0;
    for (std::pair<HoughBox, std::vector<CDCRLWireHit> >& candidate : candidates) {
      const HoughBox& houghBox = candidate.first;
      const std::vector<CDCRLWireHit>& taggedHits = candidate.second;
 
      B2DEBUG(100, "Candidate");
      B2DEBUG(100, "size " << taggedHits.size());
      B2DEBUG(100, "Phi0 " << houghBox.getLowerBound<DiscretePhi0>()->phi());
      B2DEBUG(100, "Impact " << houghBox.getLowerBound<ContinuousImpact>());
 
      B2DEBUG(100, "Tags of the hits");
      for (const CDCRLWireHit& rlTaggedWireHit : taggedHits) {
        B2DEBUG(100, "    " <<
                "rl = " << static_cast<int>(rlTaggedWireHit.getRLInfo()) << " " <<
                "dl = " << rlTaggedWireHit.getRefDriftLength());
      }
 
      for (const CDCRLWireHit& rlTaggedWireHit : taggedHits) {
        const CDCWireHit& wireHit = rlTaggedWireHit.getWireHit();
        std::string color = "blue";
        if (rlTaggedWireHit.getRLInfo() == ERightLeft::c_Right) {
          color = "green";
        } else if (rlTaggedWireHit.getRLInfo() == ERightLeft::c_Left) {
          color = "red";
        }
        //EventDataPlotter::AttributeMap strokeAttr {{"stroke", color}};
        EventDataPlotter::AttributeMap strokeAttr {{"stroke", m_colors[iColor % m_colors.size()] }};
        draw(wireHit, strokeAttr);
      }
      ++iColor;
    }
    saveDisplay(svgFileName);
 
    timeItResult.printSummary();
  }
}
 
 
namespace {
  TEST_F(TrackFindingCDCTestWithSimpleSimulation, hough_perigee_SimpleHitBasedHough_phi0_impact_onSegment)
  {
    std::string svgFileName = "phi0_impact_on_segments.svg";
 
    Helix lowerHelix(0.00, 2.52033, -20, 0, 0);
    Helix higherHelix(0.00, 3.0718, 20, 0, 0);
 
    simulate({lowerHelix, higherHelix});
    saveDisplay(svgFileName);
 
    using SimpleSegmentPhi0ImpactHoughTree =
      SimpleSegmentHoughTree<InPhi0ImpactBox, phi0Divisions, impactDivisions>;
    SimpleSegmentPhi0ImpactHoughTree houghTree(maxLevel);
 
    using HoughBox = SimpleSegmentPhi0ImpactHoughTree::HoughBox;
 
    B2INFO("yes");
    houghTree.assignArray<DiscretePhi0>(phi0BinsSpec.constructArray(), phi0BinsSpec.getNOverlap());
    //houghTree.assignArray<DiscreteImpact>(impactBinsSpec.constructArray(), impactBinsSpec.getNOverlap()); // Discrete
    houghTree.assignArray<ContinuousImpact>({{minImpact, maxImpact}}, impactBinsSpec.getOverlap()); // Continuous
    houghTree.initialize();
 
    // Execute the finding a couple of time to find a stable execution time.
    std::vector< std::pair<HoughBox, std::vector<const CDCSegment2D*> > > candidates;
 
    // Is this still C++? Looks like JavaScript to me :-).
    TimeItResult timeItResult = timeIt(100, true, [&]() {
      // Exclude the timing of the resource release for comparision with the legendre test.
      houghTree.fell();
 
      houghTree.seed(m_mcAxialSegment2Ds);
 
      const double minWeight = 40.0;
      candidates = houghTree.find(minWeight);
      // candidates = houghTree.findBest(minWeight);
 
      ASSERT_EQ(m_mcTracks.size(), candidates.size());
 
      // Check for the parameters of the track candidates
      // The actual hit numbers are more than 4 segment, but this is somewhat a lower bound
      for (size_t iCand = 0; iCand < candidates.size(); ++iCand) {
        EXPECT_GE(candidates[iCand].second.size(), 4);
      }
    });
 
    std::size_t nNodes = houghTree.getTree()->getNNodes();
    B2INFO("Tree generated " << nNodes << " nodes");
    houghTree.fell();
    houghTree.raze();
 
    size_t iColor = 0;
    for (std::pair<HoughBox, std::vector<const CDCSegment2D*> >& candidate : candidates) {
      const HoughBox& houghBox = candidate.first;
      const std::vector<const CDCSegment2D*>& segments = candidate.second;
 
      B2DEBUG(100, "Candidate");
      B2DEBUG(100, "size " << segments.size());
      B2DEBUG(100, "Phi0 " << houghBox.getLowerBound<DiscretePhi0>()->phi());
      B2DEBUG(100, "Impact " << houghBox.getLowerBound<ContinuousImpact>());
 
      for (const CDCSegment2D* segment2D : segments) {
        EventDataPlotter::AttributeMap strokeAttr {{"stroke", m_colors[iColor % m_colors.size()] }};
        draw(*segment2D, strokeAttr);
      }
      ++iColor;
    }
    saveDisplay(svgFileName);
    timeItResult.printSummary();
  }
}