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

[Matthew Turk]

Hi Bili,

I think it depends.  But, there are likely other ways to get this
functionality implemented; for now, even just using something like HTM
would work (even though it's not equal area) and then replace it later
once we have licensing figured out.

-Matt

On Thu, Jul 23, 2015 at 1:55 PM, Bili Dong <qobilidop at gmail.com> wrote:
> 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> 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> wrote:
>>
>> Here’s the link to the issue. Sorry for not including it.
>>
>> Regards,
>> Bili
>>
>> On Jul 23, 2015, at 10:07 AM, Bili Dong <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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