[GraphHopper] Get only tower nodes from routing

[Peter]

Hi Falk,

with the lower level API you have access to the nodeIds which are
already tower nodes:
path.calcEdges -> adjNode and baseNode

> 2. A little off topic: Is there a way to tag those nodes, persist and
read those tags later, when calculating new routes?

You will have to store the tags per nodeID while import into a separate
storage like MapDB. I've done a similar thing already but yet integrated.

Regards,
Peter

On 23.04.2015 17:38, Falk Morus wrote:
> Hi,
> I'm implementing an algorithm, which has to look for certain
> information on every junction node within a calculated route.
> Currently I'm following the git tutorial:
>
> QueryResult from, QueryResult to, QueryGraph, Path =
> Dijkstra().calcPath()
>
> But the result set I got seems to have all nodes in it. NodeAccess
> does not seem to have any flag to distinguish between node kinds. So:
>
> 1. Is there a way, to get only tower ( = junction/intersection) nodes
> of a route (which I presume are already used for routing)?
> 2. A little off topic: Is there a way to tag those nodes, persist and
> read those tags later, when calculating new routes?
>
> Thanks in advance.
> Sincerely, Falk
>
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