[Talk-ca] Can-Amera border, states and provinces.

[James Ewen]

On Sat, Aug 15, 2009 at 12:08 PM, Richard Weait<richard at weait.com> wrote:

> I think the provincial / state borders will continue to be yucky on
> the main map until mapnik supports rendering different style sheets
> per region / country.

My thoughts exactly, but does the OSM project support
continent/country wide style sheets? I suspect not, so the next step
would be to figure out who to query about this, and whether it would
be concept that would be supported. Would this be something that would
be up to the end user?

If understand the concept, the main slippy map is just a place to show
what is in the database, and it would be up to the end user to render
tiles and create a display mechanism for their own use.


> We, in North America, get to see what is
> essentially a European style sheet, and as those countries are
> smaller, rendering their states / provinces at zoom 3 is just as
> stupid as not rendering ours at zoom 3.

Yes, I agree that there's no way that we can come up with a style
sheet that will work everywhere. I think that's why the mantra "Don't
tag for the renderers" has come to be. People are trying to tag things
so they render on the slippy map in a manner in which they would like
to see.

I think that some of that is being done already anyway, since the
major highways in Alberta at least have been bumped up from Primary to
Trunk, and now to Motorway. With them tagged as Trunk or Motorway they
show up until zoom level 5, with Primary roads disappearing at zoom
level 7. You need to be at zoom level 5 before you can see the whole
province, but the provincial admin boundary doesn't show up until zoom
level 11.

> P.S. re Sam's suggestion, just changing the admin level sounds like
> the wrong approach to me.

Yes, that would be tagging for the renderer in my interpretation.

James
VE6SRV