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Groups > alt.comp.freeware > #372917

Re: Windows freeware for offline editing uploaded GPX tracks

Cross-posted to 3 groups.

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Wolf Greenblatt wrote:
> On Fri, 22 Mar 2024 09:28:07 -0800, Bill Bradshaw wrote:
>
>>> So I don't know yet if Basecamp works offline with an underlying
>>> topo map. Does it?
>>
>> The problem for you is you want free and you are probably not going
>> to find it offline.  At one time Garmin released for pay TOPO U.S.
>> 2008 and you need something like this display topo maps in BaseCamp
>> or Garmin Mapsource..  I did see you may be able to purchase a copy
>> of this from Ebay.  You can use GoogleEarth to display your track
>> and then save the screen image.
>>
>> I use an older pay program called OziExplorer which allows me to use
>> topo maps downloaded from the USGS site.  I then use a free program
>> to convert the downloaded pdf file into a graphics format.  Then you
>> have to calibrate the map in OziExplorer so your track will properly
>> display.  The simplest answer for you is to purchase a a copy of
>> Garmin TOPO U.S. 2008 and use BaseCamp and MapSource.
>
> I think maps from the USGS site are already geo calibrated so there's
> no need to convert (with gpsbabel or the like) to use inside most
> programs.
>
> But it seems ozi explorer uses a different than normal native format
> which has to be separately geo calibrated so that every point is
> known. https://www.oziexplorer4.com/img2ozf/img2ozf.html
>
> Luckily ozi seems to supply a converter from geo pdf to ozi native
> OZF4. https://www.oziexplorer4.com/img2ozf/img2ozf_setup.exe
>
> Although they also suppy another converter to convert to geo TIFF is
> seems. http://www.oziexplorer3.com/utils/image_convert.zip
>
> They suggest GPSbabel for track conversion into ozi explorer plt
> tracks. https://www.gpsbabel.org/download.html
>
> Which allows starting from the geo pdf calibrated USGS topo maps.
> https://viewer.nationalmap.gov/launch/
>
> The ozi explorer web page touts that version Version 3.95.6f supports
> internet maps such as Open Street Map, Google Maps & USA Terraserver
> Maps https://www.oziexplorer4.com/eng/internet_maps.html
>
> I installed the suggested free program from
> http://www.oziexplorer.com/
> https://www.oziexplorer4.com/eng/downloads/395/oziexp_setup.exe
> Name: oziexp_setup.exe
> Size: 8790316 bytes (8584 KiB)
> SHA256:
> 0B8C511B92CF0A4CCA245AC7B306687B159652D0AB312642910DCB790877EECB
>
>> By the way what are you using to acquire your track?
>
> I'm using the normal open source GPS logger for Android from
> BasicAirData.
> https://play.google.com/store/apps/details?id=eu.basicairdata.graziano.gpslogger
>
> But I noticed this oziexplorer freeware also has an offline Android
> app. https://www.oziexplorer4.com/android/oziexplorer_android.html
>
> Is this about the right sequence to use those USGS geo PDFs with ozi?
> 1. Convert USGS geo PDF maps to native ozi explorer geo TIF files
> 2. Convert your GPX tracks to native ozi explorer plt tracks

I assume you using Ozi to import your GPX files.  It is under the Load 
Button.

> 3. Display the converted plt track on the ozi TIFF or OZF4 topo map

There are a lot of other things you can do.  If you download and install 
DEMs you can plot your trail profile and also other info.

>
> I only used ozi explorer on Android & Windows for a few minutes so I
> may have some of that wrong as ozi does things different than most
> apps do.
>
> But did I get anything wrong above in what I surmised from the ozi
> site?

You definitely got everything.  I do not remember how many calibration 
points the converter puts in the *.map file but you can always add 
calibration points through the program (maybe only registered?).  I always 
use at least 4 points with one at each map corner.  If you get into this you 
probably will move on to stitching usge maps together.  That is a whole new 
process.

I do have the android version on my phone.

<Bill> 

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Thread

Windows freeware for offline editing uploaded GPX tracks Wolf Greenblatt <wolf@greenblatt.net> - 2024-03-22 01:55 -0400
  Re: Windows freeware for offline editing uploaded GPX tracks "MJP" <KKK@KKK.NET> - 2024-03-22 12:55 +0000
  Re: Windows freeware for offline editing uploaded GPX tracks "MJP" <KKK@KKK.NET> - 2024-03-22 12:57 +0000
    Re: Windows freeware for offline editing uploaded GPX tracks Wolf Greenblatt <wolf@greenblatt.net> - 2024-03-22 10:25 -0400
      Re: Windows freeware for offline editing uploaded GPX tracks "MJP" <KKK@KKK.NET> - 2024-03-22 15:50 +0000
        Re: Windows freeware for offline editing uploaded GPX tracks "Bill Bradshaw" <bradshaw@gci.net> - 2024-03-22 09:28 -0800
          Re: Windows freeware for offline editing uploaded GPX tracks Bernd Rose <b.rose.tmpbox@arcor.de> - 2024-03-22 19:32 +0100
          Re: Windows freeware for offline editing uploaded GPX tracks Wolf Greenblatt <wolf@greenblatt.net> - 2024-03-22 19:04 -0400
            Re: Windows freeware for offline editing uploaded GPX tracks "Bill Bradshaw" <bradshaw@gci.net> - 2024-03-23 08:43 -0800
              Re: Windows freeware for offline editing uploaded GPX tracks Wolf Greenblatt <wolf@greenblatt.net> - 2024-03-24 20:45 -0400
                Re: Windows freeware for offline editing uploaded GPX tracks "Bill Bradshaw" <bradshaw@gci.net> - 2024-03-25 09:08 -0800
                Re: Windows freeware for offline editing uploaded GPX tracks Wolf Greenblatt <wolf@greenblatt.net> - 2024-03-25 15:06 -0400
                Re: Windows freeware for offline editing uploaded GPX tracks Bernd Rose <b.rose.tmpbox@arcor.de> - 2024-03-25 23:20 +0100
                Re: Windows freeware for offline editing uploaded GPX tracks "Bill Bradshaw" <bradshaw@gci.net> - 2024-03-26 08:54 -0800
                Re: Windows freeware for offline editing uploaded GPX tracks Bernd Rose <b.rose.tmpbox@arcor.de> - 2024-03-26 18:45 +0100
                Re: Windows freeware for offline editing uploaded GPX tracks Bernd Rose <b.rose.tmpbox@arcor.de> - 2024-03-26 23:57 +0100
                Re: Windows freeware for offline editing uploaded GPX tracks "Bill Bradshaw" <bradshaw@gci.net> - 2024-03-27 08:51 -0800
                Re: Windows freeware for offline editing uploaded GPX tracks "Bill Bradshaw" <bradshaw@gci.net> - 2024-03-27 12:09 -0800
                Re: Windows freeware for offline editing uploaded GPX tracks Bernd Rose <b.rose.tmpbox@arcor.de> - 2024-03-27 21:35 +0100
                Re: Windows freeware for offline editing uploaded GPX tracks "Bill Bradshaw" <bradshaw@gci.net> - 2024-03-27 13:51 -0800
                Re: Windows freeware for offline editing uploaded GPX tracks Bernd Rose <b.rose.tmpbox@arcor.de> - 2024-03-28 07:02 +0100

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