From e619d29e14267d181b4e10e1af382ad5a8530b81 Mon Sep 17 00:00:00 2001
From: Vladimir Byko-Ianko <v.bykoianko@corp.mail.ru>
Date: Thu, 11 Dec 2014 12:02:11 +0300
Subject: [PATCH] Removing turns in the case if (1) source and target names are
 the same; (2) the angle between is TurnSlightRight, TurnSlightLeft or
 GoStraight

---
 routing/osrm_router.cpp | 8 ++++++++
 routing/turns.cpp       | 4 ++++
 routing/turns.hpp       | 1 +
 3 files changed, 13 insertions(+)

diff --git a/routing/osrm_router.cpp b/routing/osrm_router.cpp
index e04151e107..c11d3f32b1 100644
--- a/routing/osrm_router.cpp
+++ b/routing/osrm_router.cpp
@@ -997,6 +997,14 @@ void OsrmRouter::FixupTurns(vector<m2::PointD> const & points, Route::TurnsT & t
       continue;
     }
 
+    if (!t.m_srcName.empty()
+        && t.m_srcName == t.m_trgName
+        && turns::IsTurnSlightOrStraight(t.m_turn))
+    {
+      turnsDir.erase(turnsDir.begin() + idx);
+      continue;
+    }
+
     ++idx;
   }
 }
diff --git a/routing/turns.cpp b/routing/turns.cpp
index 289f3f5703..78ac321260 100644
--- a/routing/turns.cpp
+++ b/routing/turns.cpp
@@ -54,6 +54,10 @@ bool IsStayOnRoad(TurnDirection t)
   return (t == turns::GoStraight || t == turns::StayOnRoundAbout);
 }
 
+bool IsTurnSlightOrStraight(TurnDirection t)
+{
+  return (t == GoStraight || t == TurnSlightRight || t == TurnSlightLeft);
 }
 
 }
+}
diff --git a/routing/turns.hpp b/routing/turns.hpp
index 3099490252..f9adcb9d12 100644
--- a/routing/turns.hpp
+++ b/routing/turns.hpp
@@ -46,6 +46,7 @@ bool IsLeftTurn(TurnDirection t);
 bool IsRightTurn(TurnDirection t);
 bool IsLeftOrRightTurn(TurnDirection t);
 bool IsStayOnRoad(TurnDirection t);
+bool IsTurnSlightOrStraight(TurnDirection t);
 
 }
 }