[OSM-talk] Map legends: Another option

[Frankie Roberto]

On Sat, Jun 27, 2009 at 11:39 PM, Lars Ahlzen <lars at ahlzen.com> wrote:


> > It would  be also interesting to hide features that are not appearing
> > in the map currently being shown.
> > Sure it would require a bbox query, but it would be much more user
> > friendly (eg when matching 2 shades of green in a map to 5 shades in
> > the legend) and it would also allow showing relevant POI icons
> > OTOH new mappers should see also not yet existing features (as their
> > palette of features to choose from) with links to wiki :)
>
> Technically implementing that on a slippy map sounds tricky, but it's an
> interesting idea. It would probably be useful for legends with many
> features.


Well, I find myself using the 'data' overlay on the main OSM map a lot. And
whilst that can take a while to load (especially if there are a lot of
features), it could perhaps be sped up by not actually drawing the shapes on
the map (ie just defining the clickable areas).

We might still be a while away from this, but with continual improvements to
javascript handling/speed in browsers (witness Firefox 3.5, Chrome, Safari,
etc) - I reckon it should be possible at some point in the future.  You
could also start by just doing node-based POIs, which would probably cut
down the complexity.

Frankie

-- 
Frankie Roberto
Experience Designer, Rattle
0114 2706977
http://www.rattlecentral.com
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