[mkgmap-dev] Incorrect runabout exit indication

Fri Oct 3 10:17:12 BST 2014

Hi Johan,

okay, mkgmap r3336 is the current version of the map compiler mkgmap, which
is used by Lambertus who offers the service at http://garmin.openstreetmap.nl/.
The r3336 simply means it is based on the revision 3336 in the Subversion repository.
You can download this program here:
http://www.mkgmap.org.uk/download/mkgmap.html

If you think the problem is caused by mkgmap, it would be of great help
if you could reproduce the problem with e.g. the wrong-exit.osm
that I used.
You may also try if the 
"Routable Bicycle (Openfietsmap Lite)" shows the same problem.

@Lambertus: Do you publish the style and the options that are used for your service
anywhere?

Ciao,
Gerd

From: spa at thecyberinn.com
To: mkgmap-dev at lists.mkgmap.org.uk
Date: Fri, 3 Oct 2014 10:54:47 +0200
Subject: Re: [mkgmap-dev] Incorrect runabout exit indication

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. Regards
Johan    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 perfectly.... okay, I did not get that before.
There is a function in mkgmap that manipulates the values of angles to assure
that Garmin gives correct advices at e.g. roundabouts:
--adjust-turn-headings
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 wrong-exit.osm

Gerd
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