Re: [Gpsbabel-misc] filter null / missing ele tags

[massimo c. <ci...@si...>]

Il giorno mar, 04/08/2009 alle 12.09 -0500, Robert Lipe ha scritto:
>         
> 
> That would be a bug in that program.  A trkpt without ele is totally
> legal by the GPX spec and very common in tracks coming from Garmins as
> they have several ways they "compress" tracks by discarding time and
> altitude.
> 

definitely. 
I have already written to the author.
By the way, does anyone know a open source software for linux (FOSS is
ok) which plots altitude graphs? 

>  
>         Is there a way to get round this with filters?
> 
> No, we don't have a way to generate elevation if it's not there.
> 

what I am looking for is a way to REMOVE track samples without elevation
thanks for the reply.