[Mapcss] Zoom levels: bad idea?

Chris Browet cbro at semperpax.com
Fri Jul 23 11:09:54 BST 2010


On Fri, Jul 23, 2010 at 11:41, Komяpa <me at komzpa.net> wrote:

> 2010/7/23 Chris Browet <cbro at semperpax.com>:
> >
> > On Fri, Jul 23, 2010 at 01:18, Komяpa <me at komzpa.net> wrote:
> >>
> >> 2010/7/20 Chris Browet <cbro at semperpax.com>:
> >> > Unless I'm mistaken, I understand the zoom level (as in "way|z1-11")
> as
> >> > "OSM
> >> > TMS zoom level", right?
> >> You may understand it that way if you want to.
> > Yo mean the interpretation is up to the implementer? It might be
> difficult
> > to have consistent maps for a given style this way...
> Everything is up to implementer for now.
> You may understand that as OSM TMS zoomlevel (EPSG:3857), I may read
> that as ScanEx TMS zoomlevel (EPSG:3395).
> They're no more than 0.7% different however :)
>

My point exactly ;) Leaving too much freedom of interpretation will make
MapCSS rendering inconsistent, which is obviously not the goal....

>
> > And defining a scale in terms of "tiles" would be very, very
> > abstract/bizarre for people not knowing mapnik/TMS.
> Who in OSM doesn't know about tiles? :)
>

Why limit MapCSS to OSM?

- Chris -
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