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HyperSpy - read the calibration information in a dm3/dm4 file

Some example of dm3 file reading by using Python HyperSpy package, which can read the detail information of the dm file.

--
# import packages
import numpy as np
import hyperspy.api as hs


# load file
sp=hs.load('sp.dm3')

# Read the axis information     
# Print all the calibration detail
print(sp.axes_manager)

'''
<Axes manager, axes: (272|2042)>
            Name |   size |  index |  offset |   scale |  units 
================ | ======= | ====== | ======= | ======= | ====== 
                   x |    272 |      0 |       -0 |  0.0025 |     µm 
 --------------- |  ------ | ----- |  ------ | ------- | ------ 
  Energy loss |  2042 |         | 3.2e+02 |       1 |     eV 

 '''

 # axis 0
print('\n\n')
print('----- information in axis 0 -----')
print('size = '+ str(sp.axes_manager[0].size))
print('offset = '+ str(sp.axes_manager[0].offset))
print('scale = ' + str(sp.axes_manager[0].scale))
print('units : ' + sp.axes_manager[0].units+'\n')

 '''
----- information in axis 0 -----
size = 272
offset = -0.0
scale = 0.0025309091433882713

units : µm

 '''

 # axis 1
print('----- Operation in axis 1 -----')
print(sp.axes_manager[1].name)
print('Energy shift = '+ str(sp.axes_manager[1].offset) +' '+ sp.axes_manager[1].units)
print('Scale = '+ str(sp.axes_manager[1].scale) +' '+ sp.axes_manager[1].units)

 '''
----- Operation in axis 1 -----
Energy loss
Energy shift = 320.9004211425781 eV

Scale = 1.0 eV

 '''
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