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Messages - Boyd

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Using The Maps/Garmin Software / Re: Cannot unlock maps
« on: May 08, 2022, 11:25:29 AM »
Cool.  8) MyTrails is a free map available on this site. It's just an overlay that must be enabled at the same time as another map.

How many maps are on the card? There's a limit to the number of "segments" that Garmin devices can access - these are the small "tiles" that make up the full map. This limit is reached long before you run out of space on a SD card. Impossible to be specific because it depends on the exact maps and GPS, but my experience has been that you will likely hit the limit with 4gb or less of map files. If you go over this limit, strange things may happen on the GPS. This is something Garmin really has not documented very well.

A limit of 4000 map segments is typical, with old devices only allowing about 2000 and a few new premium (ie: expensive) models supporting something like 10,000 segments.

Using The Maps/Garmin Software / Re: Cannot unlock maps
« on: May 08, 2022, 09:34:44 AM »
The free maps on this site do not require "unlocking". There are, however, some maps that are listed here but you must go to another site to actually download. Some of them could be locked. If so, that would likely mean they could only be used on the first device on which they were installed, or only from the original memory card the map was provided on.

So... "it depends" on exactly what maps you're talking about. All of Garmin's own recent maps are locked in the same fashion. So perhaps the problem maps are actually commerical products from Garmin or a third party that have this kind of copy protection? For example, if you had a Garmin 24k topo on your old GPS and moved it to the new one, you'd get this sort of error message.

OTOH, it could also just be a bug in Garmin's software... it wouldn't be the first time for that.  ;D

Map Making Support / Re: Base Map Source?
« on: May 04, 2022, 03:29:15 AM »
Right. You can go to the National Map, zoom in on your area of interest and choose the type of data you want. If you are interested in a specific US state, next to "area of interest", choose "selectable polygon" from the dropdown, then choose "US State of Territory" from the other dropdown. Now you can click the state you want and limit your search to it.


Map Making Support / Re: Base Map Source?
« on: May 03, 2022, 07:20:42 AM »
Individual states may have their own data available. But you could also use data from OpenStreetMap shapefiles:


Cool - glad I was able to help!  8)

General Discussion / Re: Garmin Inreach Explorer
« on: April 24, 2022, 08:10:50 AM »
Have you seen this?

Pre-loaded data
When purchased in North America, the Explorer+ is preloaded with the following maps:

Topo 24K for the US and Canada (Made by DeLorme)
Topo 125K for Mexico (Made by DeLorme)
World Wide BaseMap (Made by DeLorme)
These maps have not been updated since the 2017 product release, and they will not be updated by Garmin.

Downloadable data
The Earthmate has 2 GB of internal storage for additional data.

The following maps can be added to the device:
 OpenStreetMaps, which covers the world and offers road detail, and light topographic detail. Sometimes they include trails. These maps are just like Garmin?s Cycling maps, and receive updates.


Assuming they use DeLorme's vector-format, that is an option under Export > Vector in GlobalMapper, although I have never used it. From the GlobalMapper help file:

DeLorme Text File
The Export DeLorme Text File command allows the user to export any loaded vector features to one of 3 text formats that can be loaded into select DeLorme mapping products.

When selected, the command displays the DeLorme Text Polygon Export Options dialog which consists of an Export Bounds panel that allows the user to set up the portion of the loaded vector data they wish to export.

I wonder if it's an issue with the amount of power that the USB port provides? IIRC, there have been general USB issues related to that with some of the M1 Macs. You might try using a powered USB hub and see if that makes a difference.

GPSr Units / Re: Garmin tread
« on: March 19, 2022, 05:22:06 AM »
Would be surprised if anyone here has a Tread. Garmin's specs say you can add maps, so just give it a try.

Also, you should understand that "your maps" is pretty meaningless here. The maps on this site are made by many different people and can vary greatly in terms of quality and usefulness. There is no approval process or standards for the maps here, anybody can upload whatever they like.

Site Support / Re: trouble trying to install maps to base camp
« on: March 08, 2022, 04:33:08 PM »
You will need to provide a lot more info for anyone to help.

1. Link to the map, or at least a clue as to where to find it
2. What are the "issues"? What did you do and what happened?
2. Computer/operating system (such as Windows 10, MacOS Catalina, etc)

I agree about the term "Custom Map".  Maybe we need to call them "Personal Maps" or something.

IMO, they are simply "Garmin-compatible maps".  :)

FWIW, what MapManager does on the Mac is trivial. It simply copies the files to the correct directory. On MacOS, when you install MapManager it will cause folders that have a .gmap or .gmapi extension to appear as "packages" in the Finder instead of folders and MapManager will open when you double-click them. But in reality, they're just folders full of all the map files - same as Windows.

Sorry, just skimmed through quickly. Note that the free trial of Globalmapper is actually very limited. It will only allow you to export one or two files, then puts up a message that you need to purchase for further data exports. So it's probably not very useful for real projects unless you buy it. I ran into this recently when deciding whether to upgrade my old version. FWIW, I did upgrade to Globalmapper v23 and it's a big improvement over my almost 10-year-old version.  :)

Also, I would not call this a "custom map" tutorial, that term has a very specific meaning for Garmin. It refers to raster imagery in .kmz files. I know that GPSFileDepot calls any map that isn't a Garmin product a "custom map", but I guess that's because the site hasn't been updated for so long. Ever since about 2008 Garmin has defined "custom maps" as user-created .kmz files.


GPSr Units / Re: How to update maps on Nuvi1350?
« on: February 18, 2022, 09:09:48 AM »
Hi. Yes, GPSReview just went away without warning. Same thing happened before with GPSPassion, the other site that covered this sort of thing.

Sounds like you need to contact Garmin support. As you said, your device included lifetime map updates so it's not unreasonable to ask Garmin for help. But they will probably tell you to use Garmin Express, which would also be my suggestion. The fact that you "don't like it" is not a very good excuse IMO.

Anyway, the forums here are for discussion of maps at GPSFileDepot, not Garmin's commercial products. You might try this site, some of the people from GPSReview may still be active there although I do not participate.


Site Support / Re: Update Error when modifying Content Description?
« on: January 25, 2022, 11:27:30 AM »
Only problem with that is you can't (AFAIK) delete your own maps. You can request to have them deleted, but the last time I tried, nothing happened. Again, Dan is the only one who can do that.

Anyway, if you submit a new map, I think the old one will also still be here which could be confusing.

Site Support / Re: Update Error when modifying Content Description?
« on: January 24, 2022, 04:38:05 AM »
Right. Like I said, I have updated a number of my own map descriptions recently and had no problems, so not sure why that is happening.

Unfortunately, the only person who could help is "Oz" - Dan Bloomberg, the site owner. He very rarely stops by here anymore, so "it is what it is". The last time he posted here was this comment on January 2. You could try sending him a PM or possibly use the link to report a post.


General Discussion / Re: Small Question about Legality
« on: January 20, 2022, 11:57:28 AM »
Garmin obviously doesn't have a problem with the maps on this site, they have lawyers and they would have shut it down long ago if they did. There are other "pirate" sites that contain cracked versions of Garmin's commercial maps, it should be immediately obvious that is not legal.

But you found the applicable part of the SLA

"You agree not to otherwise reproduce, copy, modify, decompile, disassemble, reverse engineer or create derivative works of any portion of the Application and Data"

Garmin has never published their .img file format, it is not open source software, it's proprietary. The only reason the maps on this site exist is that somebody "reverse engineered" Garmin's map format. This was (AFAIK) originally done by Stan Kozicki with his cgpsmapper program which was used to create most of the maps on this site. But he decided to cease development a number of years ago. Others created their own tools, such as openstreetmap and mapwel. But all of them are the result of reverse-engineering.

And, as you can see, Garmin forbids reverse-engineering their software. Anyway, this is all a bit silly. Garmin doesn't care if you use GPSFileDepot maps, but they won't help you if you have problems.

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