[OSM-dev] Basic GPX parser in OpenLayers

Joerg Ostertag (OSM Munich/Germany) openstreetmap at ostertag.name
Thu Oct 18 15:49:06 BST 2007


On Donnerstag 18 Oktober 2007, Christopher Schmidt wrote:
> On Thu, Oct 18, 2007 at 03:08:48PM +0100, Tom Hughes wrote:
> > In message <20071018135805.GA18708 at metacarta.com>
> >
> >         Christopher Schmidt <crschmidt at metacarta.com> wrote:
> > > Note that parsing Very Large data could take awhile -- I don't know how
> > > long of tracks people typically upload. The 1000 point track from my
> > > commute this morning was ~200kb -- but my GPS recording client is kinda
> > > verbose.
> > >
> > > Anyone have some examples of how big a 'large' gpx file usually is for
> > > them that I can try out for performance?
> >
> > Well http://www.openstreetmap.org/user/TomH/traces/43998 is a 26 mile
> > cycle trace from last weekend - about 3.5 hours worth.
>
> Okay. That one is a bit long :) Not unbearably so. I'll take that as a
> target and see if I can improve performance to the extent that load time
> is tenable.

Last time I tested the max size of GPX accepted by the osm-server was 5MB 
compressed. Just for Info.

-
Joerg




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