Esempio n. 1
0
        /**
         * Note that, the source should not be as same as the sink! (we could extend
         * this later on)
         *
         * @param sourceVertex
         * @param sinkVertex
         * @return
         */
        public Path GetShortestPath(BaseVertex sourceVertex, BaseVertex sinkVertex)
        {
            DetermineShortestPaths(sourceVertex, sinkVertex, true);
            //
            java.util.LinkedList <BaseVertex> vertexList = new java.util.LinkedList <BaseVertex>();
            double weight = startVertexDistanceIndex.ContainsKey(sinkVertex) ?
                            startVertexDistanceIndex[sinkVertex] : Graph.DISCONNECTED;

            if (weight != Graph.DISCONNECTED)
            {
                BaseVertex curVertex = sinkVertex;
                do
                {
                    vertexList.add(curVertex);
                    curVertex = predecessorIndex[curVertex];
                } while (curVertex != null && curVertex != sourceVertex);
                vertexList.add(sourceVertex);
                vertexList.reverse();
            }
            return(new Path(vertexList, weight));
        }