Control: tag -1 + wontfix Control: severity -1 normal Gilles gave me access to an example Garmin file from a real device (thanks!). With that file, I can reproduce the problem described in this bug.
It seems the current Garmin maps from Garmin use a format that has not yet been reverse-engineered, and OP most likely used such a map. It seems very unlikely that Navit will be the first to do this reverse engineering work, as this is out of scope for Navit, and rather difficult: The existing support for Garmin maps is based on an external library (libgarmin), which has seen little development during the last years. Also, the projects I could find that deal with Garmin maps focus on creating Garmin maps (often from OpenStreetMap data), not on reading original (and proprietary) Garmin maps (which, at any rate, may be illegal in some countries). I have documented this limitation in the Navit wiki under http://wiki.navit-project.org/index.php/Garmin_maps . Thus I'm tagging this bug as "wontfix". Sebastian Leske Navit developer -------------------------------------- -- Details of analysis -- I tried to load the file using QMapShack (installed from the Debian package). QMapShack reports that it is a "NT Format file", which QMapShack cannot read. Some googling revealed that apparently there are several variants of Garmin files. In particular, some years ago (2009?) Garmin introduced a major format change, called "NT Format". See: https://www.mail-archive.com/qlandkartegt-users@lists.sourceforge.net/msg01482.html https://forum.garmin.de/showthread.php?50375-OSM-Karten-Routing-F%E4higkeit-ausschalten In particular, in QMapShack issue #12, "Cannot import NT Format map file" someone writes: > No, sorry, I don't think there will be support of newer proprietary > maps. First the data in the gmapsupp is structured different. This is > not that much of a problem, as it is quite easy to find out. However > the coding of the elements is different, too. And so far no one > started to reverse engineer that part. Reverse engineering stopped at > the point where the community could create own maps. ( https://bitbucket.org/maproom/qmapshack/issues/12/cannot-import-nt-format-map-file ) I also could not find any library/program that claims to read "NT Format" Garmin files (apparently there are "pseudo-NT" files, which can be read, but Garmin themselves produce "true" NT Files, which are different).
