• Binder link created, currently lands in Index.ipynb
• data loaded as part of the notebooks, running all cells on notebooks inside binder will work.
• Added file_getter.py which takes command-line arguments, which makes extending the download to more notebooks fairly straightforward.
• Both notebooks work, make_probe_templates.ipynb required adding some clean-up steps to avoid going over 2GB ram limit, the alternative is to split them into more separate notebooks.
• There's a slight issue that if people don't shutdown notebooks properly or if they have multiple notebooks over, they may cause kernel panics, both notebooks peak memory usage push the 2GB limit .
• I haven't given much attention to style or formatting currently just wanted to get something functional and working to see if works as required.

These are two new tutorial notebooks I updated. One is for single-run reconstruction, the other is for interactive mode with ipywidgets and matplotlib visualization.

• Binder link created, currently lands in Index.ipynb
• data loaded as part of the notebooks, running all cells on notebooks inside binder will work.
• Added file_getter.py which takes command-line arguments, which makes extending the download to more notebooks fairly straightforward.
• Both notebooks work, make_probe_templates.ipynb required adding some clean-up steps to avoid going over 2GB ram limit, the alternative is to split them into more separate notebooks.
• There's a slight issue that if people don't shutdown notebooks properly or if they have multiple notebooks over, they may cause kernel panics, both notebooks peak memory usage push the 2GB limit .
• I haven't given much attention to style or formatting currently just wanted to get something functional and working to see if works as required.

I found that there is almost no proper documentation for the dynamical scattering simulation in py4DSTEM unless you read the source code (actually I couldn't find the documentation for the whole diffraction module). So I created a tutorial using NaCl as an example. Hope I have done it right.

in the strain mapping tutorial, this step doesn't work !

[12]

Next, create a BF virtual detector using the the center beam position (qxy0, qy0)

We will expand the BF radius slightly (+ 2 px).

The DF virtual detector can be set to all remaining pixels.

expand_BF = 2.0 image_BF = py4DSTEM.process.virtualimage.get_virtualimage_circ( dataset, qx0, qy0, probe_semiangle + expand_BF) image_DF = py4DSTEM.process.virtualimage.get_virtualimage_ann( dataset, qx0, qy0, probe_semiangle + expand_BF, 1e3)

[return]

AttributeError Traceback (most recent call last) Input In [168], in <cell line: 5>() 1 # Next, create a BF virtual detector using the the center beam position (qxy0, qy0) 2 # We will expand the BF radius slightly (+ 2 px). 3 # The DF virtual detector can be set to all remaining pixels. 4 expand_BF = 2.0 ----> 5 image_BF = py4DSTEM.process.get_virtualimage_circ( 6 dataset, 7 qx0, qy0, 8 probe_semiangle + expand_BF) 9 image_DF = py4DSTEM.process.virtualimage.get_virtualimage_ann( 10 dataset, 11 qx0, qy0, 12 probe_semiangle + expand_BF, 13 1e3)

AttributeError: module 'py4DSTEM.process' has no attribute 'get_virtualimage_circ'

Any tips to fix that ?

py4DSTEM.process.virtualimage.virtualimage.get_virtualimage_circ or py4DSTEM.process.virtualimage.get_virtualimage_circ ?

Running the ACOM_03 notebook as downloaded, cell 25 gives the following error:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
/var/folders/ts/tq6v7mks7hvg37ys5zvs1c2w0000gn/T/ipykernel_3012/3733081456.py in <module>
     14 
     15 # Fit an ellipse to the elliptically corrected bvm
---> 16 qx0_corr,qy0_corr,a_corr,e_corr,theta_corr = py4DSTEM.process.calibration.fit_ellipse_1D(bvm_ellipsecorr,(qx0,qy0),(qmin,qmax))
     17 
     18 py4DSTEM.visualize.show_elliptical_fit(

NameError: name 'qmin' is not defined

I think someone changed qmin, qmax to be a list called qrange and never actually tested the notebook in a fresh state.

When I run the "ACOM Tutorial Notebook 01", it gives a following error message.

AttributeError: module 'py4DSTEM.process' has no attribute 'diffraction'

version python 3.8.0 py4DSTEM 0.12.6 pywin32 302