[OSM-newbies] Altitude/elevation with OSM and Josm

[Mark Williams]

Harald Kirsch wrote:
> Am 04.01.2008 23:31 schrieb Mark Williams:
>   
>> Harald Kirsch wrote:
>>     
>>> Is there a way to attach altitude/elevation above see level to points in
>>> OSM with JOSM?
>>>       
>
>   
>> <ele>, as in ele=n (in metres) - it is in map features.
>>     
>
> Ok, thanks. Which brings me right to the next question. Is there a way
> to convince JOSM to show altitute values form imported GPX tracks?
>
> Harald.
>   
Ah, that question!

Not that I know of. I have sometimes recorded waypoints to show altitude 
as I walk, and have suggested that josm might pin an ele tag on if a 
node coincides with a gps point that has one, but it doesn't appear to 
be a priority. 20 years ago I'd have written the plugin to do this but 
I'm too rusty / don't have time now.. :(

It would be nice to have a plugin that looked for, say, the nearest 10 
points & took a weighted average altitude - but you then have issues 
around calibration (my Garmin can easily be 40metres out if the weather 
changes). I'd love something you could activate for a session, which did 
this for new nodes.

Mark