Mapwarper could do so without too much trouble (Tim?); it is unlikely that the projection can be estimated since an algorithm could not differentiate between error and projection fit. -rhw
On Apr 25, 2015, at 9:18 AM, James Heald j.heald@ucl.ac.uk wrote:
There is a slot for that in the Commons {{map}} description template http://commons.wikimedia.org/wiki/Template:Map
using the field "projection",
with a handful of values that have internationalisations defined at
http://commons.wikimedia.org/wiki/Template:I18n/map_projection
But it's not clear whether/how the template should store relevant parameters.
I'm not sure whether the information can be used as a baseline by MapWarper yet. (Tim ?). Or whether there are good scripts available to estimate a projection, given georeferencing points.
-- J.
On 25/04/2015 13:06, Rob H Warren wrote:
If we are going to go through the trouble of storing geo-referencing data, we would be silly not to add original projection type when known. There are a few specs on github for ideas. -rhw
On Apr 24, 2015, at 8:28 PM, James Heald j.heald@ucl.ac.uk wrote:
MG_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_Curato... ).
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.
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