Thanks. Just goes to show there is nothing new under the sun!
2009/8/22 Dan O'Hara <[email protected]>: > Hi guys > > Here is an extract from the Garmin Oregon Wiki > (http://garminoregon.wikispaces.com/Maps#toc20) on multiple img files. > > "M17.) How do I use multiple map (.img) files to help me better manage maps > on my Garmin Oregon? > > Even though Mapsource and MapInstall always save maps sets as > [drive]:\Garmin\gmapsupp.img this file can be renamed once it is on the > Oregon to any name (as of beta software 2.99) as long as the .img extension > is preserved. This is very helpful if you want to manage multiple maps sets, > say one for your home area that would change infrequently and one for a > travel destination(s) that you might change frequently. The steps for doing > this are: > > 1. Follow the procedure in M15 to create and download your home map set > 2. Using a file explorer on your computer locate > [drive]:\Garmin\gmapsupp.img and rename the file to > [drive]:\Garmin\myhomemaps.img > 3. Follow the procedure in M15 to create and download your travel map set > > > When you are done with your travel map set this file can be deleted and > replaced with a new map set for your next destination without having to > rebuild and transfer your home map set." > > Previously to 2.99 you would have had to rename the gmapsupp.img to one of > only 2 other files names (although you could save gmapsupp.img also to the > MSD card). Renaming to anything else meant that the file could not be read > by the unit. Now you can rename gmapsupp.img to any name to fit more maps > on (provided space and only 1 gmapsupp.img on the unit and only 1 on MSD > etc). > > > Dan > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of swanilli > Sent: Saturday, 22 August 2009 2:36 PM > To: [email protected] > Subject: Re: [OSM-newbies] Multiple gmapsupp.img files on Garmin > > Hi Bill > > It seems that it does have to be uploaded as gmapsupp.img first. > > When I start my Oregon 300, a "Loading maps" (or some such) message > appears at the bottom of the screen. My guess is that it must be > locating the maps in memory rather than in their files, hence the name > change does not cause them to be lost. > > I have tried copying the files (not named gmapsupp.img) but they seem > to be ignored – they are only recognised if named gmapsupp.img at > least once. > > > 2009/8/22 Bill Ricker <[email protected]>: >> I will have to try this with my 76csx >> >> Does it have to be loaded as gmapsupp.img and used once before each >> renaming? >> >> I have been placing extra *.img in named subdirs and copying to Garmin/ to >> select, but being able to switch without a usb connect would be much > better, >> since states in New England are so small, I can drive across a corner of > NH >> or VT in not much longer than than it took to swap >> >> Bill >> >> >> >> On Fri, Aug 21, 2009 at 10:24 PM, swanilli <[email protected]> wrote: >>> >>> I have just accidentally discovered that it is possible to have >>> multiple gmapsupp.img files on my Garmin Oregon 300. Since I have not >>> seen this method mentioned anywhere else here it is. >>> >>> Problem: I regularly update my local OSM data (since I am in Australia >>> from http://www.osmaustralia.org/garmin.php) but I also have other >>> maps, notably topographic, on the Garmin uit that I don't change. If I >>> upload the combined gmapsupp.img using MapSource it takes forever. >>> What would be nice would be to only upload the tiles that have changed >>> but the conventional advice is that there can only be one gmapsupp.img >>> file per drive i.e. one in the base unit and one on the micro SD card. >>> >>> Method: >>> >>> 1. Upload to Garmin unit the unchanging maps. This creates (or >>> overwrites) a file called gmapsupp.img. >>> >>> 2. Disconnect the Garmin unit, switch on, then open and check the map >>> uploaded. >>> >>> 3. Reconnect the Garmin unit to your computer and locate the >>> gmapsupp.img just created. >>> >>> 4. Change the file name to anything else e.g. gmapsupp-topo.img. >>> >>> 5. Disconnect the unit and switch on again. The original maps will >>> still be there. >>> >>> 6. Reconnect and upload a new set of maps. This will create a new >>> gmapsupp.img file but not overwrite the first lot of maps. >>> >>> 7. Repeat the steps above, changing the file name each time. >>> >>> 8. To overwrite data, change the name of the file back to gmapsupp.img >>> and upload new maps. (No sure if the file can't just be deleted but I >>> have been getting the "The map set is approximately nnMB, but only >>> nnnMB is available in the destination. Please select fewer maps and >>> try again." message from MapSource.) >>> >>> >>> There seems to be no limit to the number of files that can be handled >>> in this way. I have 16 at present making it very quick to add or >>> update existing data. >>> >>> _______________________________________________ >>> newbies mailing list >>> [email protected] >>> http://lists.openstreetmap.org/listinfo/newbies >> >> >> >> -- >> Bill >> [email protected] [email protected] >> >> _______________________________________________ >> newbies mailing list >> [email protected] >> http://lists.openstreetmap.org/listinfo/newbies >> >> > > _______________________________________________ > newbies mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/newbies > > > _______________________________________________ > newbies mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/newbies > _______________________________________________ newbies mailing list [email protected] http://lists.openstreetmap.org/listinfo/newbies
