Hotfix to Shower Best Plane Calorimetry

sbncode/CAFMaker/CAFMaker_module.cc

@@ -2523,7 +2523,7 @@ void CAFMaker::produce(art::Event& evt) noexcept {
         assert(thisShower.size() == 1);
 
         SRShower& shw = pfp.shw;
-        FillShowerVars(*thisShower[0], vertex, fmShowerHit.at(iPart), wireReadout, producer, shw);
+        FillShowerVars(*thisShower[0], vertex, fmShowerHit.at(iPart), wireReadout, producer, shw, fDet);
 
         // We may have many residuals per shower depending on how many showers ar in the slice
         if (fmShowerRazzle.isValid() && fmShowerRazzle.at(iPart).size()==1) {

sbncode/CAFMaker/FillReco.cxx

@@ -391,6 +391,7 @@ namespace caf
                       const geo::WireReadoutGeom& wireReadout,
                       unsigned producer,
                       caf::SRShower &srshower,
+                      Det_t det,
                       bool allowEmpty)
   {
 
@@ -411,11 +412,56 @@ namespace caf
     // It's sth like this but not quite. And will need to pass a simb::MCtruth object vtx position anyway.
     // srshower.conversion_gap = (shower.ShowerStart() - vertex.Position()).Mag();
 
-    if(shower.best_plane() != -999){
-      srshower.bestplane        = shower.best_plane();
-      srshower.bestplane_dEdx   = srshower.plane[shower.best_plane()].dEdx;
-      srshower.bestplane_energy = srshower.plane[shower.best_plane()].energy;
-    }
+    for(int p = 0; p < 3; ++p) srshower.plane[p].nHits = 0;
+    for (auto const& hit:hits) ++srshower.plane[hit->WireID().Plane].nHits;
+
+    if(det == kSBND)
+      {
+        int bestplane_for_energy = -999;
+        int mosthits = -1;
+        for(int p = 0; p < 3; ++p)
+          {
+            if((int)srshower.plane[p].nHits > mosthits)
+              {
+                mosthits = srshower.plane[p].nHits;
+                bestplane_for_energy = p;
+              }
+          }
+
+        if(bestplane_for_energy != -999)
+          {
+            srshower.bestplane_for_energy = bestplane_for_energy;
+            srshower.bestplane_energy     = srshower.plane[bestplane_for_energy].energy;
+          }
+
+        if(shower.best_plane() != -999 && srshower.plane[shower.best_plane()].dEdx != -999)
+          {
+            srshower.bestplane_for_dedx = shower.best_plane();
+            srshower.bestplane_dEdx     = srshower.plane[shower.best_plane()].dEdx;
+          }
+        else
+          {
+            for(int p = 2; p >= 0; --p)
+              {
+                if(srshower.plane[p].dEdx != -999)
+                  {
+                    srshower.bestplane_for_dedx = p;
+                    srshower.bestplane_dEdx     = srshower.plane[shower.best_plane()].dEdx;
+                    break;
+                  }
+              }
+          }
+      }
+    else
+      {
+        if(shower.best_plane() != -999)
+          {
+            srshower.bestplane_for_energy = shower.best_plane();
+            srshower.bestplane_for_dedx   = shower.best_plane();
+            srshower.bestplane_dEdx       = srshower.plane[shower.best_plane()].dEdx;
+            srshower.bestplane_energy     = srshower.plane[shower.best_plane()].energy;
+          }
+      }
 
     if(shower.has_open_angle())
       srshower.open_angle = shower.OpenAngle();
@@ -438,9 +484,6 @@ namespace caf
       srshower.end = shower.ShowerStart()+ (shower.Length() * shower.Direction());
     }
 
-    for(int p = 0; p < 3; ++p) srshower.plane[p].nHits = 0;
-    for (auto const& hit:hits) ++srshower.plane[hit->WireID().Plane].nHits;
-
     for (geo::PlaneGeo const& plane: wireReadout.Iterate<geo::PlaneGeo>()) {
 
       const double angleToVert(wireReadout.WireAngleToVertical(plane.View(), plane.ID()) - 0.5*M_PI);

sbncode/CAFMaker/FillReco.h

@@ -70,6 +70,7 @@ namespace caf
                       const geo::WireReadoutGeom& wireReadout,
                       unsigned producer,
                       caf::SRShower& srshower,
+                      Det_t det,
                       bool allowEmpty = false);
 
   void FillShowerRazzle(const art::Ptr<sbn::MVAPID> razzle,