Describe: shortest path algorithm source, a lot of people in need. I gis contained web site development, Yu directed the shortest path query procedures, speed express routes, 30,000 nodes, all 35,000 traverse the road, only a seconds. Now Shortest Path tell you the idea that we should optimization, and use different language, delphi is studying, I wanted to use delphi caused basement, in the cases from the arc topology/info file as the data source. Which a1, b1, c1 fnode ranking is generated by the array, a1 fnode counterparts, b1 counterparts tnode, c1 corresponding length, the same a2, b2, c2, tnode is generating array. Indexa1 counterparts is a starting point, linked with the end of the number, indexb1 counterparts at a terminal connected to its starting point the number, which is its topologic

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