[mkgmap-dev] Problem with newer garmin device text labels not appearing

Sun Dec 1 21:06:59 GMT 2024

Hello,

Please forgive any missing information and clarity - my first post here.

I have a (free, primitive) website ("TrickTracks 
<https://mapmaker.tricktracks.org/server/trick_tracks/file_uploader.php>") 
that allows users to "drop" a gpx file onto a webpage and receive a 
garmin .img map file as a download.  Under the covers my My web server 
converts the gpx file to an MP file and then feeds mkgmap (currently 
r4000) to produce the .img file.  I've had this website live for about 5 
years and it's been well received by my users.  The users are primarily 
motorcycle and bicycle riders who create tracks for their rides and use 
the maps on their various Garmin devices. My software does a bit of 
"special" processing on the gpx files in that certain waypoints are 
converted to large polygon targets and the gpx track lines have mileage 
marker polygons added at the user requested intervals. There are various 
web-page configuration options, etc. that let users specify map line 
width, etc. This has worked well on almost all garmin devices for many 
years.

I now have a problem with some of the newer garmin devices (XT2 and 
Treads) where the labels for the polygons are not showing up. I'm 
looking for ideas on where to start with this issue.  I have a few ideas 
and would like ideas on how to proceed:

  * First, is this a know problem in this community? Have the mkgmap/OSM
    developers already tackled this issues and has mkgmap been changed
    in some way to deal with it?  I will admit I have not upgrade my
    server yet to the latest mkgmap.
  * I am assuming garmin changed something in their rendering software
    to now show labels that used to work (I suppose that's obvious).  I
    have tried to see if there was a device setting that affected this
    but have not been able to find any that work.
  * Is there some limitation with using MP file input to mkgmap that
    will, in the future, hinder generating .img file for these newer
    devices.  I do not generate and JOSM and have not researched that as
    it seems like overkill for my application.
  * Is there perhaps something in my TYP input to mkgmap that could
    cause this (I self generate TYP files on the fly but they have
    worked for years and still do on the XT, Montana, etc.).
  * As a side-note, the labels on my MP polylines do display correctly.
  * I can provide the MP file contents I am generating for the failing
    waypoint labels if that would help.

Thanks you for any input and help you can give me.

Scott
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