[OSM-talk] displayed width of roads

[Tom Hughes]

In message <b5f0f61d0802180650n72dc3e8cy4da974b65b8676d9 at mail.gmail.com>
        Dermot McNally <dermotm at gmail.com> wrote:

> On 18/02/2008, Jeremy Adams <milenko at king-nerd.com> wrote:
>
> > My "fix" for the situation you linked to was to set motorway_links
> > to layer=-1.  This puts them underneath the main roads and makes
> > the map look much nicer IMO.
>
> By co-incidence, I was in contact with another mapper who's been doing
> something like this to make low zoom osmarender rendering a bit
> prettier. What's everybody's opinion of this kind of practice? Is it
> not an example of compromising the data (which we want to endure) to
> work around a temporary deficiency in one particular renderer?

If the slip roads are not really underneath the other roads then
yes it is definitely wrong (IMHO). The layer tag is meant to describe
the physical ordering of the roads on the ground.

If something isn't rendering right the solution is to fix the
rendering not to deliberately misdescribe the data to try and 
make the rendering look prettier.

Tom

-- 
Tom Hughes (tom at compton.nu)
http://www.compton.nu/