Align 3D - specify minimum search angle

Utilities
1

Hi,

It would be useful if in addition to allowing the user to specify the maximum shift and rotation for Align3D, it was also possible to specify the minimum for both.

This would allow the user to exclude spurious no-movement alignments in cases of pseudosymmetry:

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Alternatively, allowing the user to output the top n solutions rather than just the top scoring solution would accomplish the same goal.

Cheers
Oli

2

Thanks @olibclarke, this makes sense. I’ve added the request to specify a minimum search angle (and shift) to our tracker.

Best,
Michael

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3

Thanks Michael! Just to give an example:

Here, when trying to align the 3 rotationally related C13 (pseudo-C39) states of the cap, Align3D often fails and gives the identity matrix. Being able to specify a minimum search angle, or possibly apply a bandpass filter during alignment, would help in this instance I think.

1 Like