update

acts-project · Jan 29, 2025 · 630c22c · 630c22c
1 parent ab9b7cf
commit 630c22c
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/Examples/Io/Root/src/RootTrackSummaryWriter.cpp b/Examples/Io/Root/src/RootTrackSummaryWriter.cpp
@@ -407,10 +407,9 @@ ProcessCode RootTrackSummaryWriter::writeT(const AlgorithmContext& ctx,
         param[i] = parameter[i];
       }
 
-      const auto& covariance = track.covariance();
       for (unsigned int i = 0; i < Acts::eBoundSize; ++i) {
-        error[i] =
-            std::sqrt(covariance(i, i));  // MARK: fpeMask(FLTINV, 1, #3999)
+        double variance = getCov(i, i);
+        error[i] = variance >= 0 ? std::sqrt(variance) : NaNfloat;
       }
     }