Plot the orientation distribution of particles from Frealign parameter file

Submitted by zli25 on Thu, 2015-12-10 13:15

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Frealign

Hello,

Is there a way (or program) to plot the orientation distribution of particles from a frealign parameter file (*.par) so we can visually see the orientation distribution?

Thanks

Alexis Thu, 2015-12-10 13:23

Yes, there are two scripts included with recent Frealign distributions:

frealign_angular_plot <cycle> <class>

This produces histograms of the euler angles, using gnuplot.

and

frealign_angular_plot2 <cycle> [<minimum OCC> <minimum SCORE> <class>]

This produces a polar 2D heatmap using Python and matplotlib, which you will need to have installed.

You can see an example of this 2D plot in panel E of this figure:
http://elifesciences.org/lookup/doi/10.7554/eLife.10180.004