FW: FW: [Openstreetmap] Recent improvements to the editing applet

[Erik Johansson]

On 1/4/06, Matt Amos <matt at matt-amos.uklinux.net> wrote:
> On Monday 02 January 2006 03:29, Robert Scott wrote:
> > On Monday 02 Jan 2006 02:52, David Sheldon wrote:
> > > Unfortunately this means that when you upload a new route you
> > > cannot edit it/add roads until the tiles have timed out and the
> > > yellow dots appear. My process is to upload a track, then draw on
> > > roads. This is now not as easy as before as you don't necessarily
> > > get the track on the editor straight away.
> > >
> > > David
> >
> > Indeed; I would be able to edit a lot faster if I didn't have to
> > stop and wait a few hours for another clump of my breadcrumbs to
> > appear. Most of the time breadcrumb trails disappear in the halfway
> > down a road (one tile is cached, another isn't) and I just can't go
> > any further.
>
> would it be better to request three tiles, e.g:
> 1) the opaque "background" tile from landsat
> 2) the breadcrumbs on a transparent PNG
> 3) the roads on a transparent PNG

This was the method used for the static version of the map before.
Your browser would fetch the landsat from some nasa server and then
fetch the roads as a seperate layer from OSM. I don't know why they
aren't fetched seperatly now days.

I don't think there is much speed up to be gained from this method,
and the bandwidth will be doubled. But you are right it's alot cleaner
way fo doing things.

--
/Erik