1 files changed, 7 insertions, 2 deletions
diff --git a/boost/geometry/strategies/cartesian/distance_projected_point.hpp b/boost/geometry/strategies/cartesian/distance_projected_point.hpp
index b7127c834d..5aaa9db434 100644
--- a/boost/geometry/strategies/cartesian/distance_projected_point.hpp
+++ b/boost/geometry/strategies/cartesian/distance_projected_point.hpp
@@ -94,8 +94,6 @@ public :
           >
     {};
 
-public :
-
     template <typename Point, typename PointOfSegment>
     inline typename calculation_type<Point, PointOfSegment>::type
     apply(Point const& p, PointOfSegment const& p1, PointOfSegment const& p2) const
@@ -159,6 +157,13 @@ public :
 
         return strategy.apply(p, projected);
     }
+
+    template <typename CT>
+    inline CT vertical_or_meridian(CT const& lat1, CT const& lat2) const
+    {
+        return lat1 - lat2;
+    }
+
 };
 
 #ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS