[Routing] Routing algorithms

OJ W ojwlists at googlemail.com
Sat Sep 20 09:57:19 BST 2008


I must be implementing A* wrong then, because every time I add a new
segment to a potential route in pyroute, I have the history showing
how it got to that segment.



On Sat, Sep 20, 2008 at 4:34 AM, Stefan Pflumm <stefan.pflumm at web.de> wrote:
> Hello,
>
> I'm searching for an routing algorithm who can handle this two properties:
>
> 1. the edge weight function c(E) of the edge E depends on the costs of
> the predecessor edges. A* for example, can't handle this, because it
> connects existings paths without updating the successors. If the path
> previous to an edge changes and the edge is already expanded the costs
> of the edge and all successors will also change.
>
> 2. the edge weight function c(E) of the node N depends on the successor
> edge. For example: E_1 and E_2 are neighbour edges of E. c(E) to E_1
> must be not equal to c(E) to E_2
>
> I hope somebody can give me an advice, thanks
>
> Stefan
>
>
>
>
>
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