Ticket #7409: RoutingGraph.java.patch

src/com/innovant/josm/jrt/core/RoutingGraph.java

@@ -184 +184 @@
            */
             
                                 String oneway_val = way.get("oneway");   /*   get (oneway=?) tag for this way.   */
+                                String junction_val = way.get("junction");   /*   get (junction=?) tag for this way.   */
             
                                 from = nodes.get(0);                   /*   1st node A  */
                                 graph.addVertex(from);                 /*   add vertex A */
@@ -197 +198 @@
                                                 
                                     
                                     //this is where we link the vertices
-                                                if (oneway_val == null || oneway_val == "false" || oneway_val == "no" || oneway_val == "0") {
-                                                //Case 1 (bi-way): oneway=false OR oneway=unset OR oneway=0 OR oneway=no
+                                                if (oneway_val == null && junction_val == "roundabout") {
+                                    //Case (roundabout): oneway=implicit yes
+                                                  addEdgeNormalOneway(way, from, to);
+                                                
+                                                } else if (oneway_val == null || oneway_val == "false" || oneway_val == "no" || oneway_val == "0") {
+                                                //Case (bi-way): oneway=false OR oneway=unset OR oneway=0 OR oneway=no
                                                   addEdgeBidirectional(way, from, to);
                                                   
                                                 } else if (oneway_val == "-1") {
-                                                //Case 2 (oneway reverse): oneway=-1
+                                                //Case (oneway reverse): oneway=-1
                                                   addEdgeReverseOneway(way, from, to);
                                                 
                                                 } else if (oneway_val == "1" || oneway_val == "yes" || oneway_val == "true") {
-              //Case 3 (oneway normal): oneway=yes OR 1 OR true
+                                                //Case (oneway normal): oneway=yes OR 1 OR true
                                                   addEdgeNormalOneway(way, from, to);                           
                                 
                                                 }