[Tilesathome] Take and Release feature

[Johan Thelmén]

torsdagen den 7 augusti 2008 skrev Rory McCann:
> Matthias Julius wrote:
> > Lennard voor den Dag <ldp at xs4all.nl> writes:
> > 
> >> Matthias Julius wrote:
> >>
> >>> In the case of a dedicated upload client, the client ID will be that
> >>> of the uploader and not that of the renderers.
> >> It was kind of the point that the client id could be used to identify a 
> >> *renderer* (more specifically, a malfunctioning one) and not the uploader.
> > 
> > Sure, this could be the next step.  But, for all of this to be useful,
> > the server needs to do something with that ID.  How many clients
> > upload through an uploader?
> 
> Could you not add the data to the EXIF data for the images in the 
> upload? I'd assume the images would be server unmodified. That way if I 
> see a dodgy tile on the web I can download the image, look at the exif 
> data on my local machine and know who to contact.
> 
> That allows me to view who uploaded the tile without any change to the 
> server infastructre.

Did something similar over a year ago. Maybe someone can modify, update, test and submit it.
http://kopparv34.mine.nu/tiles1.diff

There was complaints that someone might object about using UploadUsername as Author. It can be removed and put in the keyword Comment as Uploader or better in Keyword source. I like to keep the keywords to the standard ones if possible. 
Otherwise they will not be displayed as often. See "Text Chunks" in man pngcrush
Maybe use openstreetmap.org for keyword Author instead.

We probably also want to include the new client-id.txt and the X Y Z so it is possible see where it came from.

It was shorter to keep it in clear text then when I tried to compress it with zTXt.

-- 
Johan Thelmén, TeLLuS, jth