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[mkgmap-dev] Incorrect runabout exit indication

From SPA spa at thecyberinn.com on Fri Oct 3 09:54:47 BST 2014

Hi Gerd

I just want to let you know that I do not compile and/or edit any OSM maps.
I do not have any experience in the area. I therefore have no idea what
"mkgmap r3336" is.

The way I get OSM maps onto my PGS is by visiting
http://garmin.openstreetmap.nl/, selecting the desired tiles "Generic
Routable (new style)" and then clicking on "Build my map". I then run the
*.exe file that will extract the tiles and see to it that I have the correct
imported map into BaseCamp. From there load the maps onto my GPS.

Your two *.img files (V1 & V2) I just copied directly onto my GPS for the
testing purposes. BO TH work perfectly when I simulate a route. the Danish
voice prompt guides me to take the correct exit & and the icon indication
the relive position for exiting the roundabout is correct.







From: mkgmap-dev-bounces at lists.mkgmap.org.uk
[mailto:mkgmap-dev-bounces at lists.mkgmap.org.uk] On Behalf Of Gerd Petermann
Sent: 3. oktober 2014 07:55
To: mkgmap-dev at lists.mkgmap.org.uk
Subject: Re: [mkgmap-dev] Incorrect runabout exit indication


Hi Johan,



And yes... I'm fearing the firmware as the culprit too, however, Garmin's
maps and other third party maps complied with others compilers work


okay, I did not get that before.
There is a function in mkgmap that manipulates the values of angles to
that Garmin gives correct advices at e.g. roundabouts:
I think this might be the reason for the problem.
I've compiled two gmapsupp files for the roundabout from your 2nd example,
once with (v1), once without this option (v2)

Please check if you see a difference.
The attached file contains the input file and the different gmapsupp 
files produced with mkgmap r3336:

v1: java -jar mkgmap.jar --route --index --gmapsupp wrong-exit.osm
v2: java -jar mkgmap.jar --route --index --gmapsupp --adjust-turn-headings


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