<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">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.<div class=""><br class=""></div><div class="">But I’m not sure if only using the algorithm resolves the license problem, does it?</div><div class=""><br class=""></div><div class="">-Bili</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jul 23, 2015, at 11:38 AM, Bili Dong <<a href="mailto:qobilidop@gmail.com" class="">qobilidop@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">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?<div class=""><br class=""></div><div class="">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?</div><div class=""><br class=""></div><div class="">-Bili</div><div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Jul 23, 2015, at 11:17 AM, Nathan Goldbaum <<a href="mailto:nathan12343@gmail.com" class="">nathan12343@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">Healpy is GPL, so that won't work.<div class=""><br class=""></div><div class="">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.<span class=""></span><br class=""><br class="">On Thursday, July 23, 2015, Bili Dong <<a href="mailto:qobilidop@gmail.com" class="">qobilidop@gmail.com</a>> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="">Here’s the <a href="https://bitbucket.org/yt_analysis/yt/issues/1047/radial-column-density" target="_blank" class="">link to the issue</a>. Sorry for not including it.<div class=""><br class=""></div><div class="">Regards,</div><div class="">Bili</div><div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Jul 23, 2015, at 10:07 AM, Bili Dong <<a href="javascript:_e(%7B%7D,'cvml','qobilidop@gmail.com');" target="_blank" class="">qobilidop@gmail.com</a>> wrote:</div><br class=""><div class="">Hi all,<br class=""><br class="">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?<br class=""><br class="">Regards<br class="">Bili</div></blockquote></div><br class=""></div></div></blockquote></div>
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