Other projections

[davidbrochart]

Could mercantile add support for using projections supported by PROJ, or is it completely out of scope?

[davidbrochart]

I just came across this snippet of code: https://gist.github.com/gka/52ef3bf442bed80367f6
Maybe this is all that is needed?

[vincentsarago]

Hi @davidbrochart
Mercantile was designed only for webmercator and it’s don’t think It will support other projection soon.

There are couple project that tries to support other projections:

• https://github.com/EOX-A/meintile
• https://github.com/DigitalGlobe/tiletanic
• https://github.com/developmentseed/morecantile

Disclaimer: I built morecantile

Mapproxy library also has support for other TMS grid.

[davidbrochart]

Thanks @vincentsarago.
I had a quick look, but it looks like none of these libraries work with PROJ projections?

[vincentsarago]

@davidbrochart yeah, speaking for morecantile, I'm working on supporting non-epsg projection right now but the TMS specs force the use of epgs code so it's not easy. I hope to have a solution this week end.
Is there a specific projection you'd like support ?

[davidbrochart]

In the end I will need to support any CRS specified by https://github.com/kartena/Proj4Leaflet.

[sgillies]

Hi @davidbrochart. Other coordinate systems are outside this project's scope.