Hi Guys,

With help from Lance, we have converted a large set of old, out of
copyright government topographic map sheets into a web slippy map.

See them here:
http://grant.dev.openstreetmap.org/za-ooc-slippy/

The map sheets are mostly 1st edition from the 1940s and 1950s. No freeways!

It is also possible to use these maps as source material in JOSM,
Potlatch 2 and Merkaartor
 * JOSM: Preferences, WMS, Add imagery layer, type TMS. TMS url:
http://grant.dev.openstreetmap.org/za-ooc-slippy/
 * Potlatch 2: Click background (top left), click edit, add using URL:
http://grant.dev.openstreetmap.org/za-ooc-slippy/$z/$x/$y.png

At the moment there are a few bugs, which I'll get around to fixing:
 * Few misplaced sheets. e.g.: Richards Bay
 * Pure black pixels are incorrectly set as transparent.
 * Sheets are not trimmed to map only. (headers + borders + reference)
 * Missing sheets...

Would love to hear what you guys think or any suggestions...

/ Grant

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