How to Update from v2.2 (both redux and non-redux) to 3.0 (Instrument Windows Computer)¶

The changes to v3.0 DOES require upgrade at the microscope and camera computers.

We have compiled all pre-compiled installer with python 2.7 now. Therefore, you do best by following the complete installation instruction until you reach the part for configuration.

See Installation Troubleshooting and Leginon Bulletin Board searching
for "install" if you run into problems.

copy the old config files to the new location.¶

If you want to avoid copying cfg files to new installation in the future, copy them from where you had it in the python2.5 2.2 installation to the global config directory

Locate global configuration directory following standard on Windows¶

Saving cfg files in a global location reduces future need for copying old configuration to updated installation. The location is different for different versions of Windows. To locate the one for your Windows version:

1. go to C:\\python27\Lib\site-packages\leginon
2. run configcheck.py

The script gives the three search directories of the cfg files and the loaded file if present. Note the first search directory that with a name most likely start with C:\\Programs and ends with \myami. This is the global configuration directory we will use.

config file	likely location in 2.2 installation if not in your home directory
sinedon.cfg	C:\\python25\Lib\site-packages\sinedon\
leginon.cfg	C:\\python25\Lib\site-packages\leginon\config\
instruments.cfg	C:\\python25\Lib\site-packages\pyscope\

modify Tietz PXL camera imaging size if you did so before for Leginon 2.2¶

You should not copy the old one in this case since the file has been changed

• Go to C:\Python27\Lib\site-packages\pyscope\

• Edit tietz.py with a plain text editor

• Find the lines:

 def getCameraSize(self):
# {'type': dict, 'values': {'x': {'type': int}, 'y': {'type': int}}}}
x = self._getParameterValue('cpTotalDimensionX')
y = self._getParameterValue('cpTotalDimensionY')
return {'x': x, 'y': y}

• Change the last line to:

    return {'x': 2048, 'y': 2048}

About TEM Scripting Beam Tilt Calibration¶

• If you have done TEM_Scripting Beam Tilt Calibration and have changed the scale factor in tecnai.py, you should copy the value to your new installation.

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