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Re: [IMP-dev] "smart" orientation grid search



you may find the attached paper useful, especially section 8.


On Tue, Jun 2, 2009 at 9:55 AM, Daniel Russel <> wrote:
> I forgot to say, you only want to return points in half the 4D sphere if you
> are trying to even out the sampling  (if you are just random sampling, then
> it obviously doesn't matter).
>
> On Jun 2, 2009, at 12:09 PM, Keren Lasker wrote:
>
>> yes - i meant that it would return Rotation3Ds
>>
>> On Jun 2, 2009, at 5:20 AM, Daniel Russel wrote:
>>
>>> I don't understand what you are looking for. It sounds like it might be
>>> an even sampling of the set of rotations but your prototype below only
>>> returns one rotation...
>>>
>>>
>>> On Jun 2, 2009, at 4:10 AM, Keren Lasker wrote:
>>>
>>>> hi all,
>>>>
>>>> Has anyone implemented a function that generates a set of grid search
>>>> orientations ?
>>>> something like:
>>>> IMP::algebra::Rotation3D rotation_grid_search(IMP::Float distance);
>>>>
>>>> We have sphere based and cylinder based rotation sampling, but it seems
>>>> that there are better ways (quaternions based) that maintain a fixed
>>>> "distance" between all pairs of orientations.
>>>>
>>>>
>>>> thanks,
>>>> Keren.
>>>> _______________________________________________
>>>> IMP-dev mailing list
>>>> 
>>>> https://salilab.org/mailman/listinfo/imp-dev
>>>
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