detector change might work - might

include/ConstructionWrapper.hh

@@ -90,6 +90,15 @@ public:
 
     void printSensorEnergies()const;
 
+    bool isAssigned()const{
+        if(layers.size() == 0){
+            return false;
+        }
+        else{
+            return layers[0].physicalVolume != nullptr;
+        }
+    }
+
 
 private:
     double xywidth;