[OSM-legal-talk] Computer-generated derivative

[Jukka Rahkonen]

Richard Fairhurst <richard at ...> writes:

> 
> Hello all,
> 
> This isn't (shock horror) specifically a licence-change post.
> 
> If Fred has a program running on his computer that downloads OSM  
> data, then combines it with some proprietary, non-CC-BY-SA stuff,  
> that's perfectly ok as long as Fred doesn't then distribute the  
> result. In fact, Fred isn't actually _allowed_ to distribute the result.
> 
> And therefore, I presume the same is true if the program is a Flash  
> app (running client-side, of course, albeit with a browser frame  
> around it) which outputs the result as a PDF - which Fred can then  
> save to his local hard drive and/or print. Right?
> 
> cheers
> Richard

Hi, 

By accident I was just tuning my MapServer and thinking about analogous
situations.  How about if my WMS server holds both OSM data and some other
datasets with different licenses?  WMS user can request layers separately (send
me A and then B) and client software combines them. But user may also ask server
to render them together on server side (send me layers A+B merged together). 
Then user can print the result to pdf and the final product looks just the same.
 Or user can even ask MapServer to send the two layers together AND in pdf
format, and the resulting pdf looks again rather the same.  There are three ways
to reach the same goal, but just one of them is allowed, or?

Should I run separate WMS services for each type of licenses? That would
guarantee that the client software should sent separate requests for the layers
and thus server side combining would be prevented.

And how about OpenLayers applications like this:
http://sautter.com/map/?zoom=5&lat=64.45292&lon=30&layers=B000TFFF
I believe that the application can exist, but how about if somebody makes a
printout?