questions regarding e2spt_gathermeta.py

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Maia Azubel

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Oct 21, 2025, 3:21:01 PMOct 21
to 'Pranav Shah' via EMAN2
Two questions regarding e2spt_gathermeta.py

  1. From the tutorial e2tomo_p22 there is an optional argument --ali3d for e2spt_gathermeta.py

example
e2spt_gathermeta.py --ptcls sptcls_02/aliptcls3d_10_00.lst --ali2d spt_01/aliptcls2d_05.lst --ali3d

I see that version EMAN 2.99.54 has that optional argument, however not EMAN 2.99.66. I'm guessing it's okay to omit. Correct?

  1. Does --ali2d need to come from a spt_xx? In the example above what would differ if --ali2d sptcls_02/aliptcls2d_10_00.lst  is used instead?

Thanks,
Maia





Muyuan Chen

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Oct 21, 2025, 4:02:40 PMOct 21
to em...@googlegroups.com
Hi Maia, 

1. Yes in newer versions it auto detect where to get the alignment information, so the --ali3d option becomes unnecessary. 
2. The --ali2d option takes the 2D transform from a subtilt refinement. While the refinemulti program can use 2D transform too and store them, it does not make any changes. So using --ali2d sptcls_xx/aliptcls2d_xx would be the same as using the one from the spt_xx folder that the refinemulti run it comes from.

Muyuan


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