The tile generation is just about complete - the routine is following the original file format and kicking out tiff files. Will batch-convert them to gif once they're all there.

Generated a list of tile extents so we can map from tiles back to real-world coordinates. This raises fly no. 2 - I'm using a linear mapping from pixels to lat/lon, which is probably inappropriate for this map. I reckon it's in Mercator but will have to check. Each set of atlas data will have to have its projection noted in the db so that we can draw overlays accurately. For the moment, I'll work on the linear system to get the big picture up, but keep in mind that we'll need to introduce corrections later on.

T
- posted by Tim Bruce @ 11:06 AM