Solvd a bug when computing the the start/end distances when creating junction segments.

src/osm/osm_junction.cpp

@@ -627,32 +627,33 @@ void COSMJunction::create_links(void)
             {
               node1=&in_way.get_segment_end_node(FIRST_SEGMENT);
               if((left=in_way.is_node_left(*node3,false,0.2))==true)
-                in_radius=DEFAULT_MIN_RADIUS-(k-((double)(in_way.get_num_lanes()-1))/2.0)*in_way.get_lane_width();
+                in_radius=DEFAULT_MIN_RADIUS+((k+1)/2.0)*in_way.get_lane_width();
               else if((right=in_way.is_node_right(*node3,false,0.2))==true)
-                in_radius=DEFAULT_MIN_RADIUS+(k-((double)(in_way.get_num_lanes()-1))/2.0)*in_way.get_lane_width();
+                in_radius=DEFAULT_MIN_RADIUS+(((double)(in_way.get_num_lanes()-1)-k)/2.0)*in_way.get_lane_width();
             }
             else
             {
               node1=&in_way.get_segment_start_node(LAST_SEGMENT);
               if((left=in_way.is_node_left(*node3,true,0.2))==true)
-                in_radius=DEFAULT_MIN_RADIUS+(k-((double)(in_way.get_num_lanes()-1))/2.0)*in_way.get_lane_width();
+                in_radius=DEFAULT_MIN_RADIUS+(((double)(in_way.get_num_lanes()-1)-k)/2.0)*in_way.get_lane_width();
               else if((right=in_way.is_node_right(*node3,true,0.2))==true)
-                in_radius=DEFAULT_MIN_RADIUS-(k-((double)(in_way.get_num_lanes()-1))/2.0)*in_way.get_lane_width();
+                in_radius=DEFAULT_MIN_RADIUS+((k+1)/2.0)*in_way.get_lane_width();
             }
             if(out_way.is_node_first(this->parent_node->get_id()))
             {
               if(left)
-                out_radius=DEFAULT_MIN_RADIUS+(l-((double)(out_way.get_num_lanes()-1))/2.0)*out_way.get_lane_width();
+                out_radius=DEFAULT_MIN_RADIUS+(((double)(out_way.get_num_lanes()-1)-l)/2.0)*out_way.get_lane_width();
               else if(right)
-                out_radius=DEFAULT_MIN_RADIUS-(l-((double)(out_way.get_num_lanes()-1))/2.0)*out_way.get_lane_width();
+                out_radius=DEFAULT_MIN_RADIUS+((l+1)/2.0)*out_way.get_lane_width();
             }
             else
             {
               if(left)
-                out_radius=DEFAULT_MIN_RADIUS-(l-((double)(out_way.get_num_lanes()-1))/2.0)*out_way.get_lane_width();
+                out_radius=DEFAULT_MIN_RADIUS+((l+1)/2.0)*out_way.get_lane_width();
               else if(right)
-                out_radius=DEFAULT_MIN_RADIUS+(l-((double)(out_way.get_num_lanes()-1))/2.0)*out_way.get_lane_width();
+                out_radius=DEFAULT_MIN_RADIUS+(((double)(out_way.get_num_lanes()-1)-l)/2.0)*out_way.get_lane_width();
             }
+//            std::cout << "in way: " << in_way.id << " lane " << k << " out way: " << out_way.id << " lane " << l << " in radius " << in_radius << " out radius " << out_radius << std::endl;
             angle=this->parent_node->compute_angle(*node1,*node3);
             if(!left && !right)
             {