[josm-dev] WMTS scales - proper definition of 1m along meridian

[Dirk Stöcker]

On Thu, 2 Jul 2015, Wiktor Niesiobedzki wrote:

> Currently I'm working on WMTS support. As some of you may know (and
> those who do not, I refer to
> http://www.opengeospatial.org/standards/wmts) uses notion of
> scaleDenominator that's crucial to tile positioning. More less -
> scaleDenominator tell how many meters are on the tile per pixel.
>
> I tried several of algorithms to get the number of meters along
> meridian for current JOSM projection, the best I could find is:

On equator or on current display? NavigatableComponent (or MapView or 
...) has a function to get this value for you (current display). This is 
e.g. used for the zoom display in left upper corner of map.

Ciao
-- 
http://www.dstoecker.eu/ (PGP key available)