[Numpy-discussion] Quaternion data type
aldcroft at head.cfa.harvard.edu
Sat May 5 07:27:59 EDT 2012
On Fri, May 4, 2012 at 11:44 PM, Ilan Schnell <ischnell at enthought.com> wrote:
> Hi Chuck,
> thanks for the prompt reply. I as curious because because
> someone was interested in adding http://pypi.python.org/pypi/Quaternion
> to EPD, but Martin and Mark's implementation of quaternions
> looks much better.
I'm a co-author of the above mentioned Quaternion package. I agree
the numpy_quaternion version would be better, but if there is no
expectation that it will move forward I can offer to improve our
Quaternion. A few months ago I played around with making it accept
arbitrary array inputs (with similar shape of course) to essentially
vectorize the transformations. We never got around to putting this in
a release because of a perceived lack of interest / priorities... If
this would be useful then let me know.
> - Ilan
> On Fri, May 4, 2012 at 5:36 PM, Charles R Harris
> <charlesr.harris at gmail.com> wrote:
>> Hi Ilan
>> On Fri, May 4, 2012 at 3:38 PM, Ilan Schnell <ischnell at enthought.com> wrote:
>>> Hello everyone,
>>> what is the plan for Quaternion data types in numpy?
>>> I saw that during last years SciPy spring
>>> was started, but not updated or released since then.
>> That was Martin Ling, link and thread here . I'm not sure what happened with
>> this but I suspect we are waiting for extension types to be fixed up in
>> master. Mark had some thoughts along those lines.
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