If I get a chance, I'll have a go at re-projecting and turning into a slippymap.
Also happy to help someone else do this. Basic steps: 1) Crop images to borders 2) Add control points via gdal_translate (jpg -> geotiff) 3) gdal_warp to EPSG:900913 (reproject) 4) tile... using patched gdal2tiles (patch changes TMS origin from bottom left to top left.) or other script I have the scripts that were used for the UK Ordnance Survey map conversion: http://os.openstreetmap.org/ / Grant On 22 April 2010 09:43, Lance Burger <lance.bur...@mweb.co.za> wrote: > I had a look at the maps. It is very interesting to see them and the > copyright on them has expired. Unfortunately the scale is rather small, > 1:250 000. It would be useful to trace some rivers, but it would not be > very accurate. I will try to find some old higher resolution maps from > the Department of Trig Survey, or whatever it is called now. > > Lance Burger > > On Tue, 2010-04-20 at 18:10 +0200, John Grant wrote: >> (Follow on from and earlier thread- CD:SM Topographic map of ZA in Nov) >> >> In November there was some discussion about a source of out-of copyright >> raster maps which may be useful for mapping Rivers, geological info etc. >> >> The University of Texas has a great collection of 1:250000 US army maps which >> may serve this purpose: http://www.lib.utexas.edu/maps/ams/south_africa/ >> >> Copyright info under FAQs http://www.lib.utexas.edu/maps/faq.html#3.html >> >> If nothing else they are beautifully made, good resolution and of historic >> interest. >> >> Regards, >> John >> >> _______________________________________________ >> Talk-ZA mailing list >> Talk-ZA@openstreetmap.org >> http://lists.openstreetmap.org/listinfo/talk-za > > > > _______________________________________________ > Talk-ZA mailing list > Talk-ZA@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-za > _______________________________________________ Talk-ZA mailing list Talk-ZA@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-za
