[mkgmap-dev] routing between different maps

Mon Jul 23 07:04:02 BST 2018

Hi Gerd, haven't tried it, but would be surprised if it's supported as it is not the Garmin way...
They want you to send all the map tiles by Garmin software to the GPS. But if this can work with mkgmap it's another step. Now we need the non-rectangular tiles... 😉

Henning 

On 23 Jul 2018, 13:00, at 13:00, Gerd Petermann <gpetermann_muenchen at hotmail.com> wrote:
>Hi all,
>
>I've now tried routing on my Oregon. I created two different
>gmapsupp.img with different family-id for Luxembourg and Saarland and
>routing doesn't seem to work in this case. :-(
>It works fine when I combine the overlapping tiles into one map (single
>gmapsupp)
>Is anybody able to calculate routes between different (Garmin) maps on
>a device?
>If not I wonder if this feature is really useful. What would be the use
>case?
>
>Gerd
>
>________________________________________
>Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
>Gerd Petermann <gpetermann_muenchen at hotmail.com>
>Gesendet: Sonntag, 22. Juli 2018 10:05
>An: Development list for mkgmap
>Betreff: Re: [mkgmap-dev] routing between different maps
>
>Hi Andrzej,
>
>I think the code in the branch (r4211) works quite well now,
>performance is okay and the number of added external nodes looks
>reasonable.
>
>next on my TODO list:
>1) Find good option name and document it. Current code always uses
>admin_level=2 boundaries. If one splits each German Bundesland and user
>tries to install e.g. Niedersachsen and Schleswig-Holstein this will
>not help.  So, as you proposed, we might want an option that works like
>this:
>--add-ext-nodes-at-borders=x
>The value x specifies the admin_level. This option tells mkgmap to add
>so called external routing nodes (NOD3 and NOD4) where
>roads intersect with boundaries of the given admin_level. Use this if
>...
>2) Unit tests for the code that checks for intersections
>
>Gerd
>
>
>
>________________________________________
>Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
>Andrzej Popowski <popej at poczta.onet.pl>
>Gesendet: Mittwoch, 18. Juli 2018 12:54
>An: mkgmap-dev at lists.mkgmap.org.uk
>Betreff: Re: [mkgmap-dev] routing between different maps
>
>Hi Gerd,
>
>> I am not yet sure what to do with roads that share multiple nodes
>with
> > country borders.
>
>I guess, some optimization would be beneficial. This is probably a
>case,
>where road goes along a border. If there is a series of consecutive
>external nodes, you could leave only first, last and nodes which are
>junctions. This probably should be done at later stages of compilation.
>
>Or maybe first and last would be enough? I mean, at a junction there
>should be an external node added for the second road.
>
>--
>Best regards,
>Andrzej
>_______________________________________________
>mkgmap-dev mailing list
>mkgmap-dev at lists.mkgmap.org.uk
>http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>_______________________________________________
>mkgmap-dev mailing list
>mkgmap-dev at lists.mkgmap.org.uk
>http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>_______________________________________________
>mkgmap-dev mailing list
>mkgmap-dev at lists.mkgmap.org.uk
>http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.mkgmap.org.uk/pipermail/mkgmap-dev/attachments/20180723/7be27fa7/attachment.html>