I tried the Graph module. I had a deep look at the SPT_Dijkstra algorithm and tried it with some sample data.
I think that I now understand the algorithm. It takes a start vertex and the result are the paths from the start vertex to all other vertices.
But this is not what I need. I need only one path from the start to the end which takes all vertices between into account.
I see no way how to solve my problem with the graph module. Or do I see something wrong? I'll now try another way. Nevertheless thank you. It was interesting to play with this Graph module.
Update:
The Graph module does not seem to be the problem, but my lack of knowledge about graph algorithms. I'm reading now about these algorithms. When I understood them, then I'll start my implementation.
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