[Routing] Routing for autonomous agents

[Vin Baines]

Hi Tobias,

Thanks for the reply! Yeah, I think I can simplify my question now, to  
make more sense. I have looked at the OSM in JOSM.

So, I think my problem is basically, OSM route software seems to  
report 'Ways' rather than 'Nodes' (sorry, OSM terminology is still new  
to me!). And I can see that makes sense for GPS navigation software,  
it usually says things like, follow the road for 2miles until  
junction. Which is probably the length of the 'way'.

But, for my simulated vehicle to follow this route, I really need to  
break it down into the nodes that make up that 'way' (and JOSM even  
tells me the lat lon of them which is perfect!)

So, I think you're right, it looks to me like the gpx file only  
contains sparse track points and end of ways, or intersections,  
whereas what I really need is all Nodes along the route, so that my  
simulated vehicle can just follow these points in order to follow the  
road. Also, it doesn't matter too much to me if the vehicle doesnt  
follow the road perfectly! A few metres is OK, but with the curved  
road, it cuts out the entire road and goes through a building! :)

Hope that makes sense!

Thanks

Vin


Quoting Tobias Knerr <osm at tobias-knerr.de>:

> Hello Vin,
>
> original projects like yours are something I always find interesting,
> especially when they involve 3D models. So I hope we can solve your
> routing problem.
>
> On 02.09.2012 20:49, Vin Baines wrote:
>> I've looked at the travelling salesman code, which almost does what I
>> want - I can pass it a set of lat-longs and get the route, but its
>> returned as OSM nodes, or a gpx file. If I load gpx data and use that as
>> coordinates for the driver to move to, then any curves in t he road get
>> ignored. But, in the GUI the route follows the road exactly. Ideally,
>> I'd export this data in say 5m intervals, and the driver agent would use
>> that as a series of moveTo(X,Y) actions.
>
> I'm not sure whether I understand the issue, but as I'm not familiar
> with the output of Travelling Salesman, I may be missing something. Some
> clarifications would be helpful.
>
> You say you can get the result as a gpx file, but it doesn't include
> curves. Does this mean that the gpx only contains track points at
> junctions and nothing in between? Is that also the problem with the
> nodes - that you don't get *all* nodes along the route, but just a few
> of them?
>
> Tobias
>
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