Re: [Gpsbabel-misc] looking up (aka inventing) elevations

[nwastra <nw...@gm...>]

Hi Steve
a little more looking around…

you can use JaVaWa RTWtool http://www.javawa.nl/rtwtool_en.html to add the elevation to multiple gpx files at a time.
I dragged a few without complete elevation to a new folder and opened the folder in the tool and export as Tracks  and 'Add elevation data'.
It then asked me to download the dem data tile for the area and after doing that it output the gpx files into a new single gpx with a segment inside for each original gpx file.

You can see all the bits with the new elevation by dropping the new single gpx on this page http://www.mygpsfiles.com/app/

I then used http://www.gpsvisualizer.com/forerunner/ to split the new single gpx into separate gpx files. It returned a zip file with individual gpx files with the elevation data intact.

I notice that the Javawa tool does not retain the original file name.

Nev

> On 9 Feb 2018, at 1:31 PM, nwastra <nw...@gm...> wrote:
> 
> Hi Steve
> 
> GPSies https://www.gpsies.com/convert.do can add/replace elevation to a gpx but it only accepts one at a time.
> 
> http://www.gpsvisualizer.com/elevation also does the same.
> 
> Nev 
>> On 9 Feb 2018, at 10:30 AM, Steven Eckert <ste...@cl...> wrote:
>> 
>> This may not be specifically related to GPSBabel options, but does anyone know
>> how to SUPPLY elevations which are missing? GPSBabel is able to modify them
>> but I have a batch of GPX files which either have no elevation tag or the value
>> is 0.000000 (meaningless except it happens to be right at Stovepipe Wells).
>> 
>> There are various websites which allow pasting in lat/lon to pop up a dialog
>> showing elevation, but I'm more interested in fixing a "defective" GPX file.
>> Or a couple dozen of them. OK, maybe a hundred or two. But I can't possibly
>> hand-enter all the coordinates.
>> 
>> I'm asking here because GPSBabel seems to know the WGS84 geoid height and
>> MAYBE it's possible to *replace* the file data instead of just changing it?
>> 
>> Steve
>> 
>> 
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