FWCaloParticleProxyBuilder.cc

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/*
 *  FWCaloParticleProxyBuilder.cc
 *  FWorks
 *
 *  Created by Marco Rovere 13/09/2018
 *
 */

#include "Fireworks/Calo/interface/FWHeatmapProxyBuilderTemplate.h"
#include "Fireworks/Core/interface/Context.h"
#include "Fireworks/Core/interface/FWGeometry.h"
#include "SimDataFormats/CaloAnalysis/interface/CaloParticle.h"
#include "SimDataFormats/CaloAnalysis/interface/CaloParticleFwd.h"
#include "SimDataFormats/CaloAnalysis/interface/SimCluster.h"

#include "TEveBoxSet.h"

class FWCaloParticleProxyBuilder : public FWHeatmapProxyBuilderTemplate<CaloParticle>
{
 public:
   FWCaloParticleProxyBuilder(void) {}
   ~FWCaloParticleProxyBuilder(void) override {}

   REGISTER_PROXYBUILDER_METHODS();

 private:
   // Disable default copy constructor
   FWCaloParticleProxyBuilder(const FWCaloParticleProxyBuilder &) = delete;
   // Disable default assignment operator
   const FWCaloParticleProxyBuilder &operator=(const FWCaloParticleProxyBuilder &) = delete;

   void build(const CaloParticle &iData, unsigned int iIndex, TEveElement &oItemHolder, const FWViewContext *) override;
};

void FWCaloParticleProxyBuilder::build(const CaloParticle &iData, unsigned int iIndex, TEveElement &oItemHolder, const FWViewContext *)
{
   const long layer = item()->getConfig()->value<long>("Layer");
   const double saturation_energy = item()->getConfig()->value<double>("EnergyCutOff");
   const bool heatmap = item()->getConfig()->value<bool>("Heatmap");
   const bool z_plus = item()->getConfig()->value<bool>("Z+");
   const bool z_minus = item()->getConfig()->value<bool>("Z-");

   bool h_hex(false);
   TEveBoxSet *hex_boxset = new TEveBoxSet();
   if(!heatmap)
      hex_boxset->UseSingleColor();
   hex_boxset->SetPickable(true);
   hex_boxset->Reset(TEveBoxSet::kBT_Hex, true, 64);
   hex_boxset->SetAntiFlick(true);

   bool h_box(false);
   TEveBoxSet *boxset = new TEveBoxSet();
   if(!heatmap)
      boxset->UseSingleColor();
   boxset->SetPickable(true);
   boxset->Reset(TEveBoxSet::kBT_FreeBox, true, 64);
   boxset->SetAntiFlick(true);

   for (const auto &c : iData.simClusters())
   {
      for (const auto &it : (*c).hits_and_fractions())
      {
         if(heatmap && hitmap.find(it.first) == hitmap.end())
            continue;

         const bool z = (it.first >> 25) & 0x1;

         // discard everything thats not at the side that we are intersted in
         if (
             ((z_plus & z_minus) != 1) &&
             (((z_plus | z_minus) == 0) || !(z == z_minus || z == !z_plus)))
            continue;

         const float *corners = item()->getGeom()->getCorners(it.first);
         const float *parameters = item()->getGeom()->getParameters(it.first);
         const float *shapes = item()->getGeom()->getShapePars(it.first);

         if (corners == nullptr || parameters == nullptr || shapes == nullptr)
         {
            continue;
         }

         const int total_points = parameters[0];
         const bool isScintillator = (total_points == 4);
         const uint8_t type = ((it.first >> 28) & 0xF);

         uint8_t ll = layer;
         if (layer > 0)
         {
            if (layer > 28)
            {
               if (type == 8)
               {
                  continue;
               }
               ll -= 28;
            }
            else
            {
               if (type != 8)
               {
                  continue;
               }
            }

            if (ll != ((it.first >> (isScintillator ? 17 : 20)) & 0x1F))
               continue;
         }

         // Scintillator
         if (isScintillator)
         {
            const int total_vertices = 3 * total_points;

            std::vector<float> pnts(24);
            for (int i = 0; i < total_points; ++i)
            {
               pnts[i * 3 + 0] = corners[i * 3];
               pnts[i * 3 + 1] = corners[i * 3 + 1];
               pnts[i * 3 + 2] = corners[i * 3 + 2];

               pnts[(i * 3 + 0) + total_vertices] = corners[i * 3];
               pnts[(i * 3 + 1) + total_vertices] = corners[i * 3 + 1];
               pnts[(i * 3 + 2) + total_vertices] = corners[i * 3 + 2] + shapes[3];
            }
            boxset->AddBox(&pnts[0]);
            if(heatmap) {
               const uint8_t colorFactor = gradient_steps*(fmin(hitmap[it.first]->energy()/saturation_energy, 1.0f));   
               boxset->DigitColor(gradient[0][colorFactor], gradient[1][colorFactor], gradient[2][colorFactor]);
            }

            h_box = true;
         }
         // Silicon
         else
         {
            const int offset = 9;

            float centerX = (corners[6] + corners[6 + offset]) / 2;
            float centerY = (corners[7] + corners[7 + offset]) / 2;
            float radius = fabs(corners[6] - corners[6 + offset]) / 2;
            hex_boxset->AddHex(TEveVector(centerX, centerY, corners[2]),
                               radius, 90.0, shapes[3]);
            if(heatmap) {
               const uint8_t colorFactor = gradient_steps*(fmin(hitmap[it.first]->energy()/saturation_energy, 1.0f));   
               hex_boxset->DigitColor(gradient[0][colorFactor], gradient[1][colorFactor], gradient[2][colorFactor]);
            }

            h_hex = true;
         }
      }
   }

   if (h_hex)
   {
      hex_boxset->RefitPlex();

      hex_boxset->CSCTakeAnyParentAsMaster();
      if (!heatmap)
      {
         hex_boxset->CSCApplyMainColorToMatchingChildren();
         hex_boxset->CSCApplyMainTransparencyToMatchingChildren();
         hex_boxset->SetMainColor(item()->modelInfo(iIndex).displayProperties().color());
         hex_boxset->SetMainTransparency(item()->defaultDisplayProperties().transparency());
      }
      oItemHolder.AddElement(hex_boxset);
   }

   if (h_box)
   {
      boxset->RefitPlex();

      boxset->CSCTakeAnyParentAsMaster();
      if (!heatmap)
      {
         boxset->CSCApplyMainColorToMatchingChildren();
         boxset->CSCApplyMainTransparencyToMatchingChildren();
         boxset->SetMainColor(item()->modelInfo(iIndex).displayProperties().color());
         boxset->SetMainTransparency(item()->defaultDisplayProperties().transparency());
      }
      oItemHolder.AddElement(boxset);
   }
}

REGISTER_FWPROXYBUILDER(FWCaloParticleProxyBuilder, CaloParticle, "CaloParticle", FWViewType::kAll3DBits | FWViewType::kAllRPZBits);