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ctffind4 crashes when resmax is low #4016

Closed leginonbot closed 6 months ago

leginonbot commented 6 months ago

Author Name: Anchi Cheng (@anchi2c) Original Redmine Issue: 4016, https://emg.nysbc.org/redmine/issues/4016 Original Date: 2016-03-08

The default ctffind4.py value on the attached image fails during ctffind4 rotational average

**warning(Image::ComputeRotationalAverageOfPowerSpectrum): unable to rescale 1D average of experimental power
forrtl: error (73): floating divide by zero

parameters example:

 --ampcontrast=0.07 --fieldsize=1024 --resmin=50 --resmax=10 --defstep=0.1 --numstep=50 --dast=0.05

passes if resmax=8

While this a problem of ctffind4, we should handle the error and give proper error log.

leginonbot commented 6 months ago

Original Redmine Comment Author Name: Anchi Cheng (@anchi2c) Original Date: 2016-03-09T02:18:08Z

r19571 just make sure the message printed corresponds.

test.mrc attached.

pixelsize = 1.27 kv = 200.0 cs = 2.0 mm nominal defocus 1.236 um actual defocus 2.9 um or so.

leginonbot commented 6 months ago

Original Redmine Comment Author Name: Neil Voss (@vosslab) Original Date: 2016-05-24T19:24:15Z

looks good.