Formatting font size and type on colorbar tick labels.

[Andrew Thron]

All, 

I am using plot(colorbar=True, scalebar=False, auto_contrast=True, axes_ticks=True, cmap='CMRmap', saturated_pixels=0) to create color images of parameters from a Lorentzian I fit to surface plasmons in my low loss spectra (basically an image of how the center or fwhm of the Lorentzian changes over a given sample area). I am trying to change the font size and font type for the tick marks in the colorbar, but I have been unable to figure out how to do this. 

I can change the font size and font type of the x and y labels by:

ticks_font = font_manager.FontProperties(family='Times New Roman', style='normal',

    size=14, weight='normal', stretch='normal')

a = gca()

for label in a.get_xticklabels():

    label.set_fontproperties(ticks_font)

for label in a.get_yticklabels():

    label.set_fontproperties(ticks_font)

but I cannot find out how to do this for the color axis. 

Any suggestions?

Cheers, 

Andrew 

[Andrew Thron]

I figured it out, but you have to use the imshow() function in matplotlib rather then the plot() function in hyperspy. The script I wrote is:

#Plotting the Surface Plasmon Center

img=load('Surface Plasmon Center.rpl')

p=img.data

import scipy

import matplotlib.pyplot as plt

from matplotlib import font_manager

img2=plt.imshow(p,extent=(0,400,0,400))

img2.set_cmap('jet')

img2.set_interpolation('none')

#insert a colorbar

b=plt.colorbar()

plt.xlabel('x (nm)',fontsize=20, fontname='Times New Roman')

plt.ylabel('y (nm)',fontsize=20, fontname='Times New Roman')

plt.title('Surface Plasmon Center', fontsize=24,fontname='Times New Roman')

fontProperties = {'family':'serif','serif':['Times New Roman'],

    'weight' : 'normal', 'size' : 16}

ticks_font = font_manager.FontProperties(family='Times New Roman', style='normal',

    size=14, weight='normal', stretch='normal')

#set the label of the colorbar

b.set_label('eV',size=18,family='Times New Roman',rotation='horizontal')

#Set the font type and size of the colorbar

for l in b.ax.yaxis.get_ticklabels():

    l.set_family("Times New Roman")

    l.set_size(14)

a = gca()

for label in a.get_xticklabels():

    label.set_fontproperties(ticks_font)

    

for label in a.get_yticklabels():

    label.set_fontproperties(ticks_font)

    

If anyone knows how to do this with the plot() function in hyperspy let me know. 

Cheers, 

Andrew 

[Francisco de la Peña]

The matplotlib colobar attribute is indeed a bit hidden in HyperSpy. You'll find it in: `img._plot.signal_plot._colorbar`.

To update the figure you can use: `img._plot.signal_plot.update()`

Francisco

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