1 files changed, 5 insertions, 1 deletions
diff --git a/src/bm/plotter.cpp b/src/bm/plotter.cpp
index e2ce934..a0e5d73 100644
--- a/src/bm/plotter.cpp
+++ b/src/bm/plotter.cpp
@@ -490,11 +490,15 @@ bool IndexPlotter::drawScenes(
         scene_far->addLine(xmin, y_base, xmax, y_base, QPen(color, 2));
     }
 
+    if (baseTimestamp < 0)
+        baseTimestamp = timestamps.last();
+
     if ((baseTimestamp >= timestamps.first()) && (baseTimestamp <= timestamps.last())) {
         // Draw line indicating the base timestamp ...
         QColor color(50, 50, 255);
         const qreal btx = xmin + (baseTimestamp - loTimestamp) * xfact;
-        scene_far->addLine(btx, ymin, btx, ymax, QPen(color, 2));
+        QGraphicsItem *btItem = scene_far->addLine(btx, ymin, btx, ymax, QPen(color, 2));
+        btItem->setZValue(1);
     }
 
     const int nDispTimestamps = 8;