[mkgmap-dev] Selectable maps on gpsFrom MarkS OSM at redcake.co.uk on Wed Aug 26 09:27:24 BST 2009
Clifford Nolan wrote: > I can't seem to find the right options so that I can output more than > one map within a gmapsupp.img file and have those individual maps be > selectable with the ticks on the gps itself. > > For example, if I have file_A.osm and file_B.osm how can make these two > separate maps show up separately on the gps so I can select them? > > Thanks in advance, > Cliff My approach is: - Run splitter on a UK extract - Run mkgmap with the GMAPSUPP option turned on to create a single UK file with (in my case) 11 sub-maps (one for each area). Make sure family name is defined in the options. - Run mkgmap again using a different style (in this case a style file showing speed limits and nothing else) again with the GMAPSUPP option turned on so I get GMAPSUPP.IMG as an output. Make sure family name is defined. - Run wgmaptool to combine these two GMAPSUPP.IMG files together. At the same time I also add in typ files and a couple of other GMAPSUPP.IMG files (one has contours and one is from OpenMTB). This creates a new GMAPSUPP.IMG file with all the individual files combined. - Copy to an SD card and put it in the garmin - In the garmin go to the list of the maps (which is very long in my case), press the menu button and it then lets you show/hide all the maps with the same family name in one go (so for example I can turn OpenMTD on/off in one go).
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