[mkgmap-dev] Problem with adjust-turn-headings

Sat May 10 13:09:17 BST 2014

Hi WanMil,

I think the algo should not use/need the finalHeading value. 
You may look at the algo in RoadNetwork.getAngle().

Gerd

WanMil wrote
> Hi,
> 
> I have found a situation where --adjust-turn-headings creates a non 
> useful turn hint.
> Compile the file:
>   http://files.mkgmap.org.uk/detail/207
> with parameters --route and --adjust-turn-headings (maybe also 
> --x-no-mergeroads for easier debugging).
> Try a route from Frankfurter Straße to Eilper Straße.
> Mapsource and the GPS give a hint that you have to turn right on the 
> junction of Frankfurter Straße and Eilper Straße although the street is 
> straight.
> 
> Logging of the RouteNode class gives the hint:
> Adjusting turn heading from -52.342655 to -99.54512 at junction of 
> (http://www.openstreetmap.org/browse/way/31171248) and 
> (http://www.openstreetmap.org/browse/way/144387754) at 
> http://www.openstreetmap.org/?mlat=51.349647&mlon=7.484266&zoom=17
> 
> For me the initial heading -52.34... looks weird.
> Gerd, do you have any ideas?
> 
> WanMil
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