Custom projection for tile source

[osmdroid]

Custom projection for tile source

[neilboyd]

I seem to remember there was a discussion about this a while ago and the conclusion was that Mercator is a bit too fundamentally incorporated to allow another tile system.

[apachemaven]

I am sorry if this is a duplicate issue, I have searched in the issue page in google code.

So that's to say I can not use other tile system? That's a pity.

[neilboyd]

It's good that you raised it again because I also looked for the previous discussion and didn't find it, so maybe I'm mistaken and there was no discussion and it is possible. This remains a valid question.

[kurtzmarc]

My SafeCanvas_To_Projection_Changes branch really moves everything towards using the Projection class exclusively for coordinate system calculations. That should position us with less of a reliance on Mercator and allow someone to implement a custom tile projection by implementing their own Projection class. I am nearing completion on that and hope to merge it soon.

See #12

[alex3305]

Are custom projections already usable in the latest version of osmdroid? Or is there still work that has to be done?

If it's already usable, maybe you could update the wiki regarding how to use a custom projection.

[kurtzmarc]

I have merged my changes into trunk. Everything is using the abstracted Projection class so it shouldn't be necessarily tied to Mercator. From here, you should be able to subclass MapView and return your own custom projection in getProjection(). We don't officially support different projections, but we may be able to accommodate them. Give it a try and see how it works.

[kurtzmarc]

I am going to close this issue since #12 is complete. If you need additional assistance, please reopen.