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Topics - Boyd

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General Discussion / GPSReview.net
« on: September 16, 2021, 07:18:52 AM »
Some of you are probably familiar with the GPSReview forums, I have been a moderator there for many years. Starting on September 13, I have been getting "Invalid URL" error messages when I go to http://forums.gpsreview.net

It's unclear at this point exactly what is happening, but there's a good chance the company that owns the site just decided to pull the plug without warning. I'm in touch with someone who should know, he is also uncertain what's going on but says he hopes to know more soon.

Anyway, this may very well be the end. Last year the plug was pulled on the the GPSPassion forums in a similar way with no warning. LaptopGPS also shut down last year, but that was announced in advance.

This sure feels like the beginning of the end of dedicated GPS devices. Not something that will happen overnight, but the trajectory seems pretty clear. Garmin is the only company that still makes handheld devices for the US market, giving them a de-facto monopoly.

We shall see. My Montana 600 died several years ago and I am not going to replace it. Still use a Garmin DriveTrack 71 in the car and like it. But I am no longer offering Garmin format maps on my own site and am developing my own free GPS web app as an alternative.

Interesting times, for sure. Let's hope the lights stay on here at GPSFileDepot!  :)

This is pretty surprising, and makes Garmin look even more desparate these days. New firmware for some handheld devices is intentionally disabling routing on OSM maps - this could affect some of the maps here at gpsfiledepot. For example, see this eTrex firmware update changelog:


More information in this thread


Using The Maps/Garmin Software / Download problems at boydsmaps.com
« on: July 25, 2019, 03:00:27 AM »
Last weekend a user informed me of problems downloading one of my maps. To make a long story short... I finally traced the issue to a plug-in that wasn't compatible with the new Wordpress software on my website. To make things worse, when I attempted to update the plug-in, the process failed, corrupting all my download pages and making them blank!  >:(

Sorry if you've been unable to download any of my maps, not exactly sure when this problem started but I suspect it's pretty recent. Am going through my whole site now and fixing the problems, but it may take another day or so to complete. See this support thread for more detailed information:


Site Support / Current version of MapInstall does not work
« on: June 20, 2018, 02:19:52 PM »
We are getting a lot of posts about this in the forums - see this thread: https://forums.gpsfiledepot.com/index.php?topic=4539.0

Seems like this should be covered by a "sticky thread" or some kind of alert message....

Site Support / "Editor selected" maps
« on: April 17, 2018, 08:40:47 AM »
Many of the "editor selected" maps (shown in a box on the custom maps page) are getting quite old, and many (if not most) have the Windows registry bug. This is a constant source of confusion and frustration to new users, here's a thread from today that is typical: https://forums.gpsfiledepot.com/index.php?topic=4525.msg24582#msg24582 I'm sure there are others who have this problem but don't bother registering and posting to the forum.

Unfortunately I don't think the authors have any intention of updating most of these maps, so you might reconsider the recommendation for "editor selection". I realize this could take awhile, so another option might be eliminating the "editor selected" box altogether.

Just a suggestion... what do you think?

Map Making Support / Polygons only... points and lines need not apply. :)
« on: February 11, 2018, 03:42:16 PM »
Here's a project I spent a lot of time on a few years ago, then lost interest and forgot all about it. I pulled the source files off my computer because they were taking up so much space, and now it appears that I erased the drive they were archived on. So everything, including the custom software I wrote is now gone and only the map itself remains. Easy come, easy go! ;)

This map is now available for download for the amusement my fellow mapmakers and advanced users: https://www.gpsfiledepot.com/maps/view/786

It really highlights the difference in rendering engines across Garmin's product line. Kind of surprising how the Montana mangles it (looks like a watercolor sketch of a map). My guess is that Garmin plays a little loose with the math to speed up some of their devices. Can't really blame them of course, I'm doing things they never intended to support with their map format. :)

Map Making Support / Elevation in feet but Basecamp shows meters
« on: January 21, 2018, 04:18:31 AM »
I have an odd problem that I just can't figure out. Looking at a map I made a few years ago, all the elevations are too high. On closer examination, it appears that Basecamp (also Mapsource) think the elevation units are meters when they should be feet. So all the numbers are 3.25 times too large. For example, an elevation that should be displayed as 80 is actually shown as 260. I have Basecamp units set to feet in the preferences. If I change the preference to meters then it shows an elevation of 80 meters.

The map was created in Globalmapper and correctly shows the elevations in feet. I export as an MP file, it appears to be correct in GPSMapEdit. Here is the header


Here's an example contour line


What could be wrong here? If I look at another MP file that shows the correct elevations, I don't see any difference

Map Making Support / Globalmapper Mobile
« on: June 22, 2016, 03:21:09 AM »
Looks cool, but you need GM17 in order to exchange any data with the app: http://www.bluemarblegeo.com/products/global-mapper-mobile.php?aid=EMGMM616

Map Making Support / iOS Map Making Software
« on: December 08, 2015, 04:12:05 PM »
I just got a big iPhone 6s Plus and am interested in using it to create/edit shapefiles. The gis-kit/gis-pro apps look very interesting, but are rather expensive - $100 for the kit or $300 for the pro version.


Both versions can import shapefiles but  unfortunately, you need the pro version to export shapefiles. That's too much for me. So looking around a bit more, I found igis, which is a free app.


Just getting started playing with this, but it looks good. To use raster imagery, you need to convert it to a tileset with the free MapTiler program


The free version is limited to images no larger than 10000 x 10000 pixels and there are various paid versions with different capabilities. It runs on windows, macosx and linux. I exported a geotiff 1 foot per pixel aerial image from Globalmapper as a test. After converting with Maptiler, I had no problem importing it into igis via iTunes.

I then exported a shapefile containing buildings (polygons) from Globalmapper and had no problem importing it in igis using iTunes file transfer. You can also use dropbox or e-mail to transfer files in both directions.

I was able to create a new polygon of a building in igis, then export the shapefile back to my computer using iTunes. Opened the file in Globalmapper and my new building was there as expected. Creating polygons with their user interface was a little shaky on the first try, but practice should help. A stylus might also help, but not sure what would be compatible with the iPhone.

So it actually works, and it's free. :) There are a lot of other capabilities that I will explore soon. There's a pro version that adds some additional features, and the price looks reasonable - $5/month or $20/year.

Anyone else using iOS to make maps? What else is available?

Map Making Support / Another tool for making Garmin mapsets
« on: September 10, 2015, 12:48:57 PM »
Just stumbled on this while searching for something else: http://www.img2ms.de/indexenglish.html

Looks like it does everything that mapsetToolkit does, plus some interesting extras. Anyone try it? 14 day free demo that (apparently) only lets you create one mapset with a fixed ID number.

Map Making Support / Where is the NHD wetlands data?
« on: July 18, 2015, 09:12:18 AM »
Have spent the past few days updating my NHD data to clean up old problems. Built a filemaker relational database that translates FCODE into MP_TYPE and GM_TYPE so all the objects are classified the way I want for Globalmapper and cgpsmapper.

But when I look at the results, there is almost no wetland data. In the past I've used the National Map to download NHD, but that is very confusing and tedious. Finally figured out that I could directly ftp everything here, which makes it much easier: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Hydro/Shape/

I have downloaded the highest resolution HU8 shapefiles directly and also the highest resolution files for the whole state. The wetland data  (Swamp/Marsh, FCODE = 46600) just isn't there. Here's an example of the current 2015 download. Water is blue, wetlands are green.

Compare that to the old 2010 data I have archived. No, all these wetlands have not dried up! ;)

Am I doing something wrong? It is not a question of how I am processing the data. The greens areas just aren't in the 2015 files. I believe the 2010 data was downloaded directly from the NHD before it was moved to the National Map.

Site Support / Forum format vs. images in posts
« on: March 08, 2015, 09:27:45 AM »
Is there some simple global setting in the forum software that would allow us to view the forum in a wider window? If you post an image, it is cut off at something like 600 pixels wide. You can see the rest of the image by scrolling the entire post but then the left side of all the text is offscreen.

This seems like something left over from the days when 1024x768 was the standard monitor resolution.  ;) On a forum dedicated to the discussion of maps, it sure would be nice if we could view the page in a larger window without cutting off the images.

Anyway, just a suggestion, if there's some easy way to fix it. Thanks!  :)

Using The Maps/Garmin Software / MyTrails vs GPSMap 64 issue
« on: February 18, 2015, 06:18:26 AM »
I don't have a 64, but thought this was interesting…


I had spoken to Garmin tech support about this, and they suggested that a corrupted map file could cause this. In my case, removing the "My Trails" map from gpsfiledepot.com cured this condition. I have downloaded the updated "My Trails" map but it does the same thing. I also noticed that when My Trails was enabled, it disabled the Garmin 24k Topo map and would only show the generic basemap instead. I had emailed the author of My Trails, but I have not yet seen a resolution to that. I have no such problems with other maps from gpsfiledepot, just this one. But taking My Trails off the device cured this issue of the zoom data fields getting corrupted and crashing the 64s.

Using The Maps/Garmin Software / Issues with MapInstall?
« on: August 03, 2014, 09:08:46 AM »
Was just looking at http://pinns.co.uk/osm/garmin.html and this caught my eye. I rarely use mapinstall mysef so I have not experienced this. But I wonder if it could explain some of the threads we've seen here about installation problems?

Mapinstall & TYP files

Latest version of Mapinstall has some very useful features.

However, you may find maps selected and so called installed on your gps may not appear;it does not necessaily create gmapsupps if the imgs are not created by Garmin.

Individual TYP files are ignored as it seems to presume that non topo imgs all have the save typ file!

Map Making Support / Multi colored lines and polygons in typwiz
« on: August 03, 2014, 09:02:26 AM »
This is very clever.   :) 


Anybody try typwiz 4 yet? He is using the same trick to create multicolored bitmaps that I've used in my own maps for a number of years (stacking duplicate polygons with transparent bitmaps), but this simplifies the process.

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