DPL Analysis: ability to use some Configurables in filters (#4274)

Author: aalkin

Analysis/Tutorials/src/histograms.cxx

@@ -16,6 +16,7 @@
 
 using namespace o2;
 using namespace o2::framework;
+using namespace o2::framework::expressions;
 
 // This is a very simple example showing how to create an histogram
 // FIXME: this should really inherit from AnalysisTask but
@@ -58,6 +59,8 @@ struct CTask {
   OutputObj<TH1F> trZ{"trZ", OutputObjHandlingPolicy::QAObject};
   Configurable<float> pTCut{"pTCut", 0.5f, "Lower pT limit"};
 
+  Filter ptfilter = aod::track::pt > pTCut;
+
   void init(InitContext const&)
   {
     trZ.setObject(new TH1F("Z", "Z", 100, -10., 10.));
@@ -67,11 +70,9 @@ struct CTask {
     // trZ.setObject({"Z","Z",100,-10.,10.}); <- creates new
   }
 
-  void process(aod::Tracks const& tracks)
+  void process(soa::Filtered<aod::Tracks> const& tracks)
   {
     for (auto& track : tracks) {
-      if (track.pt() < pTCut)
-        continue;
       ptH->Fill(track.pt());
       trZ->Fill(track.z());
     }

Analysis/Tutorials/src/partitions.cxx

@@ -21,17 +21,17 @@ using namespace o2::framework::expressions;
 //        we need GCC 7.4+ for that
 struct ATask {
   float fPI = static_cast<float>(M_PI);
-  float ptlow = 0.5f;
-  float ptup = 2.0f;
+  Configurable<float> ptlow{"pTlow", 0.5f, "Lowest pT"};
+  Configurable<float> ptup{"pTup", 2.0f, "highest pT"};
   Filter ptFilter_a = aod::track::pt > ptlow;
   Filter ptFilter_b = aod::track::pt < ptup;
 
-  float etalow = -1.0f;
-  float etaup = 1.0f;
+  Configurable<float> etalow{"etaLow", -1.0f, "lowest eta"};
+  Configurable<float> etaup{"etaUp", 1.0f, "highest eta"};
   Filter etafilter = (aod::track::eta < etaup) && (aod::track::eta > etalow);
 
-  float philow = 1.0f;
-  float phiup = 2.0f;
+  Configurable<float> philow{"phiLow", 1.0f, "lowest phi"};
+  Configurable<float> phiup{"phiUp", 2.0f, "highest phi"};
 
   using myTracks = soa::Filtered<aod::Tracks>;