OnlineMon: add 2D correlation

src/algorithms/OnlineMonitor/OnlineMonitor.cpp

@@ -51,6 +51,8 @@ void OnlineMonitor::initialise() {
     AddButton("EventTimes", "EventTimeCanvas");
     AddButton("CorrelationsX", "CorrelationXCanvas");
     AddButton("CorrelationsY", "CorrelationYCanvas");
+    AddButton("CorrelationsX2D", "CorrelationX2DCanvas");
+    AddButton("CorrelationsY2D", "CorrelationY2DCanvas");
     AddButton("ChargeDistributions", "ChargeDistributionCanvas");
 
     // Per detector histograms
@@ -69,9 +71,15 @@ void OnlineMonitor::initialise() {
         string correlationXHisto = "/corryvreckan/TestAlgorithm/correlationX_" + detectorID;
         AddHisto("CorrelationXCanvas", correlationXHisto);
 
+        string correlationX2DHisto = "/corryvreckan/TestAlgorithm/correlationX_2Dlocal_" + detectorID;
+        AddHisto("CorrelationX2DCanvas", correlationX2DHisto);
+
         string correlationYHisto = "/corryvreckan/TestAlgorithm/correlationY_" + detectorID;
         AddHisto("CorrelationYCanvas", correlationYHisto);
 
+        string correlationY2DHisto = "/corryvreckan/TestAlgorithm/correlationY_2Dlocal_" + detectorID;
+        AddHisto("CorrelationY2DCanvas", correlationY2DHisto);
+
         string residualHisto = "/corryvreckan/BasicTracking/residualsX_" + detectorID;
         AddHisto("ResidualCanvas", residualHisto);
     }