[GraphHopper] What are pillar and tower Nodes? Rename to geometry and junction nodes?

[Jürgen Zornig]

Well, in GI science we speak of 'vertices' for pillars and just 'nodes' or
'junctions' for that what you know as tower nodes. Coming from GI I found
it hard to understand what towers and pillars should be until I read some
documentation about it. So by talking about vertices at least, it would get
much clearer for.a whole bunch of geomatic related people.
Am 01.12.2014 19:38 schrieb "D KING" <david.king.bath at btinternet.com>:

> I'd say that junction and geometry is more immediately descriptive and
> intuitive, though the meaning of tower/pillar isn't really obscure. It
> would seem a small but worthwhile improvement in comprehension/usability.
>
>
>
>   ------------------------------
>  *From:* Peter <graphhopper at gmx.de>
> *To:* graphhopper at openstreetmap.org
> *Sent:* Monday, 1 December 2014, 16:01
> *Subject:* [GraphHopper] What are pillar and tower Nodes? Rename to
> geometry and junction nodes?
>
> Hi all,
>
> as the naming is from 2 years ago I think it could be time to rename
> 'tower' nodes into 'junction' nodes and 'pillar' nodes into 'geometry'
> nodes. What do you think, would this be (more) intuitive?
>
> Below a quick documentation which I would add otherwise to the docs.
>
> Kind Regards,
> Peter
>
> **
> From OpenStreetMap we fetch all nodes and create the routing graph but
> only a minority of them are actual junctions, which are the ones we are
> interested while routing. Those junction nodes I call tower nodes which
> also have a graphhopper node ID associated, going from 0 to
> graph.getNodes(). The helper nodes between the junctions I call 'pillar
> nodes' which can be fetched via edgeIteratorState.fetchWayGeometry
>
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