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[mkgmap-dev] Route Calculation Error and Ferries

From Gerd Petermann gpetermann_muenchen at hotmail.com on Mon Mar 12 17:40:36 GMT 2018

Hi Ticker,

do you see the same problems in Mapsource  or Basecamp? If yes, I can try to find a reason.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
Gesendet: Montag, 12. März 2018 18:30:31
An: mkgmap-dev at lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] Route Calculation Error and Ferries

Hi Gerd

I've tried navigating as both Pedestrian and as Car/Motorcycle.
The Island (Isle of Wight) I'm trying to route to has 3 car ferries and
1 foot ferry.

All the ferries I'm trying have are set as toll (my style sets this for
ferries unless they explicitly have tag toll=no). GPSMapEdit shows
toll, along with no-one-way. I allow "toll" in the device routing
options.

I only mentioned the order of points because the device requests a u
-turn at the via point. I don't think point order is the problem
because
creating a device-route back along the same ferry doesn't work either.

The one ferry I've found that does work leaves from the same jetty as a
failing one, but doesn't go to the island - ie it's destination can be
navigated to via the road/trail network without a ferry journey.

Ticker


On Mon, 2018-03-12 at 16:42 +0000, Gerd Petermann wrote:
> Hi Ticker,
>
> the direction should not matter. What vehicle do you use for routing?
> The one that works has no toll=yes tag. Maybe your style does
> something special with toll=*?
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
> von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
> Gesendet: Montag, 12. März 2018 16:46:02
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: Re: [mkgmap-dev] Route Calculation Error and Ferries
>
> Using GPSMapEdit to look at the coordinates of the first point in the
> ferry way, the one that worked has the points in the direction of
> travel, and the one that didn't has them the other way around (but
> neither is marked one-way)
>
> Ticker
>
> On Mon, 2018-03-12 at 15:31 +0000, Ticker Berkin wrote:
> > Hi
> >
> > I almost always get "Route Calculation Error" on my Garmin when a
> > ferry
> > crossing is required. GPSMapEdit "Tools > Test Routing Graph" does
> > find
> > the routes and it shows reasonable properties for the ferries,
> > walkways
> > and relevant roads.
> >
> > I'm testing it with a mix of foot and car ferries. In the routing
> > options, all "Avoids" are turned off (ie allow tolls, unpaved, etc)
> >
> > If I create a "Route" on the device, with a "Via Point" on the
> > ferry
> > line, and then navigate this route, it works, except immediately
> > after
> > the "via point" it gives the instruction is "Make a U-turn"
> >
> > This ferry works:
> > https://www.openstreetmap.org/way/3533551
> >
> > These don't:
> > https://www.openstreetmap.org/way/614416
> > https://www.openstreetmap.org/way/614415
> >
> > Any thoughts
> >
> > Ticker
> > _______________________________________________
> > mkgmap-dev mailing list
> > mkgmap-dev at lists.mkgmap.org.uk
> > http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
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