[yt-dev] Issue #1047: Radial Column Density (yt_analysis/yt)

[Bili Dong]

Another option I can think about is to reimplement the needed healpix functionality from scratch. Since only the coordinates transformation part are involved here, it would be some reasonable amount of work.

But I’m not sure if only using the algorithm resolves the license problem, does it?

-Bili

> On Jul 23, 2015, at 11:38 AM, Bili Dong <qobilidop at gmail.com> wrote:
> 
> I see where the problem is. And since the whole HEALPix stuff is GPL. It’s even not possible to reimplement something like healpy, right?
> 
> To keep the project in BSD,  I’m thinking about adding a parameter to the class RadialColumnDensity. By using that parameter,  the user can feed the healpix functionality to the class. Is that possible?
> 
> -Bili
> 
>> On Jul 23, 2015, at 11:17 AM, Nathan Goldbaum <nathan12343 at gmail.com <mailto:nathan12343 at gmail.com>> wrote:
>> 
>> Healpy is GPL, so that won't work.
>> 
>> One way around this would be to implement the functionality you are concerned about in a new GPL package, split off from the main yt package.
>> 
>> On Thursday, July 23, 2015, Bili Dong <qobilidop at gmail.com <mailto:qobilidop at gmail.com>> wrote:
>> Here’s the link to the issue <https://bitbucket.org/yt_analysis/yt/issues/1047/radial-column-density>. Sorry for not including it.
>> 
>> Regards,
>> Bili
>> 
>>> On Jul 23, 2015, at 10:07 AM, Bili Dong <qobilidop at gmail.com <javascript:_e(%7B%7D,'cvml','qobilidop at gmail.com');>> wrote:
>>> 
>>> Hi all,
>>> 
>>> I’m bringing the update of the discussion here. The current problem is to find a workaround for the code removed for licensing concerns. Could healpy could be an option?
>>> 
>>> Regards
>>> Bili
>> 
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