only warn about transitioning through degenerate face when tracing

src/HexExtractor.cc

@@ -86,7 +86,8 @@ HexExtractor::HexExtractor()
       numDartsTraced(0),
       numDartTraceLoops(0),
       callsToFindPort(0),
-      portsCheckedInFindPort(0)
+      portsCheckedInFindPort(0),
+      tracing(false)
 {
     exactinit();
 
@@ -841,6 +842,7 @@ void HexExtractor::traceDarts()
     auto n = (int)intermediateHexMesh.n_vertices();
 
     HEXEX_DEBUG_ONLY(std::cout << "Tracing darts" << std::endl;)
+    tracing = true; // enable warnings when passing through degenerate faces
 
 //#pragma omp parallel for
     for (auto i = 0; i < n; ++i)
@@ -860,6 +862,8 @@ void HexExtractor::traceDarts()
             }
     }
 
+    tracing = false;
+
 }
 
 

src/HexExtractor.hh

@@ -711,7 +711,7 @@ private:
     template <typename T, typename... Rest>
     void doTransition(HalfFaceHandle hfh, T& target, Rest&... rest)
     {
-        HEXEX_DEBUG_ONLY(if (isFaceDegenerate(hfh))
+        HEXEX_DEBUG_ONLY(if (tracing && isFaceDegenerate(hfh))
             std::cout << "warning: transitioning through a degenerate face. Transition function might be wrong." << std::endl;)
         doTransition(hfh, target);
         doTransition(hfh, rest...);
@@ -782,6 +782,8 @@ private:
     long callsToFindPort;
     long portsCheckedInFindPort;
 
+    bool tracing; // For debugging. Enables warning in doTransition
+
 
 };