Re: [Glamtools] uploading Geo- referenced map

(Cross-posting to the "wikimaps" list, which is the group particularly concerned with old maps). Hi Jason, Whilst I'm sure the KML {{overlay}} template mentioned by Gauruv below probably works, it's not really where things are at going forward. The approach currently being developed for Commons is its own install of the well-known NYPL Map Warper, http://warper.wmflabs.org/ which is being supervised by its original developer Tim Waters under the auspices of the Wikimaps project for old maps, https://commons.wikimedia.org/wiki/Commons:Wikimaps led by Susanna Ånäs. (Both on the wikimaps list). There are various ways to get control-point data into the map warper, as discussed by Tim in this post: https://mail-archive.com/maps-l@lists.wikimedia.org/msg01101.html In this case I would have thought the most straightforward approach

would be first to upload a copy of the tithe map onto Commons in its native format, ie not as a GeoTiff, but as either an ordinary Tiff or a Jpeg, whichever you consider the original format. If you use the Commons {{Map}} template for the file description, this includes a big friendly blue button to then install the image over on the Map Warper. As Tim writes, existing control points can then be added from a CSV

file, where the format is simply: filename,x,y,lat,lon ie: IMG_1773.jpg,12,23,11.2,32.2 IMG_1773.jpg,12,23,10.2,31.1 from which there is script that an admin can use to add the data to the map-warper. This doesn't capture all of the data stored by Klokan Georeferencer -- eg the useful information as to what layer the image was georeferenced against -- but is enough to get the geo-referencing data into the system, and to then get it out in various formats, including serving georeferenced tiles. Sorry if it's all still a little bit round-the-houses; but with luck everything should get a bit more streamlined, as we get more geared up for large scale import. (There are already a couple of thousand images on Commons with links to external georeferencing, either at NYPL or the British Library; plus ready to be uploaded to Commons a further 6,000 georeferenced map images from the BL Mechanical Curator collection, just as soon as I've got

auto-categorisation a bit more worked out, with that number currently increasing by approximately a further 100 georeferenced images a day

https://commons.wikimedia.org/wiki/Commons:British_Library/Mechanical_Curat… ). As far as I know, nobody has yet actually used the script to import

pre-existing georeferencing onto the warper.wmflabs.org server, so I'm quite interested to see how you get on! Best regards, James. On 24/04/2015 18:02, Gaurav Vaidya wrote: _______________________________________________ Glamtools mailing list Glamtools(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/glamtools