From d9ec475d945d3035377a0d89ed42e382d8988891 Mon Sep 17 00:00:00 2001
From: DongHun Kwak <dh0128.kwak@samsung.com>
Date: Thu, 6 Oct 2016 10:33:54 +0900
Subject: Imported Upstream version 1.60.0

Change-Id: Ie709530d6d5841088ceaba025cbe175a4ef43050
Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>
---
 .../geometry/algorithms/detail/overlay/overlay.hpp | 25 +++++++++++++---------
 1 file changed, 15 insertions(+), 10 deletions(-)

(limited to 'boost/geometry/algorithms/detail/overlay/overlay.hpp')

diff --git a/boost/geometry/algorithms/detail/overlay/overlay.hpp b/boost/geometry/algorithms/detail/overlay/overlay.hpp
index baf9d4777d..6eb0b8864c 100644
--- a/boost/geometry/algorithms/detail/overlay/overlay.hpp
+++ b/boost/geometry/algorithms/detail/overlay/overlay.hpp
@@ -78,6 +78,11 @@ inline void get_ring_turn_info(TurnInfoMap& turn_info_map,
             && ! turn_info.both(operation_intersection)
             ;
 
+        if (! both_uu && turn_info.colocated)
+        {
+            skip = true;
+        }
+
         for (typename boost::range_iterator<container_type const>::type
                 op_it = boost::begin(turn_info.operations);
             op_it != boost::end(turn_info.operations);
@@ -105,7 +110,7 @@ inline void get_ring_turn_info(TurnInfoMap& turn_info_map,
 
 template
 <
-    typename GeometryOut, overlay_type Direction, bool ReverseOut,
+    typename GeometryOut, overlay_type OverlayType, bool ReverseOut,
     typename Geometry1, typename Geometry2,
     typename OutputIterator
 >
@@ -129,8 +134,8 @@ inline OutputIterator return_if_one_input_is_empty(Geometry1 const& geometry1,
     // Union: return either of them
     // Intersection: return nothing
     // Difference: return first of them
-    if (Direction == overlay_intersection
-        || (Direction == overlay_difference && geometry::is_empty(geometry1)))
+    if (OverlayType == overlay_intersection
+        || (OverlayType == overlay_difference && geometry::is_empty(geometry1)))
     {
         return out;
     }
@@ -143,7 +148,7 @@ inline OutputIterator return_if_one_input_is_empty(Geometry1 const& geometry1,
     std::map<ring_identifier, ring_turn_info> empty;
     std::map<ring_identifier, properties> all_of_one_of_them;
 
-    select_rings<Direction>(geometry1, geometry2, empty, all_of_one_of_them);
+    select_rings<OverlayType>(geometry1, geometry2, empty, all_of_one_of_them);
     ring_container_type rings;
     assign_parents(geometry1, geometry2, rings, all_of_one_of_them);
     return add_rings<GeometryOut>(all_of_one_of_them, geometry1, geometry2, rings, out);
@@ -155,7 +160,7 @@ template
     typename Geometry1, typename Geometry2,
     bool Reverse1, bool Reverse2, bool ReverseOut,
     typename GeometryOut,
-    overlay_type Direction
+    overlay_type OverlayType
 >
 struct overlay
 {
@@ -178,7 +183,7 @@ struct overlay
         {
             return return_if_one_input_is_empty
                 <
-                    GeometryOut, Direction, ReverseOut
+                    GeometryOut, OverlayType, ReverseOut
                 >(geometry1, geometry2, out);
         }
 
@@ -211,8 +216,8 @@ std::cout << "get turns" << std::endl;
 std::cout << "enrich" << std::endl;
 #endif
         typename Strategy::side_strategy_type side_strategy;
-        geometry::enrich_intersection_points<Reverse1, Reverse2>(turn_points,
-                Direction == overlay_union
+        geometry::enrich_intersection_points<Reverse1, Reverse2, OverlayType>(turn_points,
+                OverlayType == overlay_union
                     ? geometry::detail::overlay::operation_union
                     : geometry::detail::overlay::operation_intersection,
                     geometry1, geometry2,
@@ -229,7 +234,7 @@ std::cout << "traverse" << std::endl;
         traverse<Reverse1, Reverse2, Geometry1, Geometry2>::apply
                 (
                     geometry1, geometry2,
-                    Direction == overlay_union
+                    OverlayType == overlay_union
                         ? geometry::detail::overlay::operation_union
                         : geometry::detail::overlay::operation_intersection,
                     robust_policy,
@@ -246,7 +251,7 @@ std::cout << "traverse" << std::endl;
 
         // Select all rings which are NOT touched by any intersection point
         std::map<ring_identifier, properties> selected_ring_properties;
-        select_rings<Direction>(geometry1, geometry2, turn_info_per_ring,
+        select_rings<OverlayType>(geometry1, geometry2, turn_info_per_ring,
                 selected_ring_properties);
 
         // Add rings created during traversal
-- 
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