From e536d05ad748c5892c2ca967172d80fe10712f04 Mon Sep 17 00:00:00 2001
From: namdre <jakob.erdmann@dlr.de>
Date: Thu, 22 Mar 2018 21:24:52 +0100
Subject: [PATCH] extending carriage drawing beyond myFurtherLanes. refs #3907

---
 src/guisim/GUIVehicle.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/guisim/GUIVehicle.cpp b/src/guisim/GUIVehicle.cpp
index aae72bb6b927..68b9283e62ed 100644
--- a/src/guisim/GUIVehicle.cpp
+++ b/src/guisim/GUIVehicle.cpp
@@ -548,6 +548,14 @@ GUIVehicle::getPreviousLane(MSLane* current, int& furtherIndex) const {
     if (furtherIndex < (int)myFurtherLanes.size()) {
         return myFurtherLanes[furtherIndex++];
     } else {
+        int routeIndex = getCurrentRouteEdge() - myRoute->begin();
+        int backIndex = furtherIndex + 1;
+        if (routeIndex > backIndex) {
+            furtherIndex++;
+            // could also look for the first lane that allows this vehicle class
+            // but this is probably not an issue for trains
+            return (*(getCurrentRouteEdge() - backIndex))->getLanes()[0];
+        }
         return current;
     }
 }