There are a couple of possible approaches for the date line. At the moment we just run out of map and the 3x3 table contains a 2x3 map. Not good. Options:

1. Keep all tiles as they are and use SQL to calculate the joins.
2. Extend tile mosaic so that we have an overlap at either side.

I think (2) is going to be the more sensible option. Provided that we limit entries in atlas_location_to_entry to the tiles in the central block, wrapping etc will work with the existing code. Will need to:

a. prepare extra end panels down each side.
b. re-cut the tiles from this new panel grid.
c. check that the TileGenerator algorithm can handle wrapping tiles and apply it.
d. modify the atlas location linker and mark tiles as linkable/not linkable so that we know which ones are there for decoration only.
e. recreate atlas location links.

T
- posted by Tim Bruce @ 5:11 PM