Bokeh – Customising legends


Bokeh – Customising legends



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Various glyphs in a plot can be identified by legend property appear as a label by default at top-right position of the plot area. This legend can be customised by following attributes −






1 legend.label_text_font change default label font to specified font name
2 legend.label_text_font_size font size in points
3 legend.location set the label at specified location.
4 legend.title set title for legend label
5 legend.orientation set to horizontal (default) or vertical
6 legend.clicking_policy specify what should happen when legend is clicked
hide: hides the glyph corresponding to legend
mute: mutes the glyph corresponding to legendtd>

Example

Example code for legend customisation is as follows −


from bokeh.plotting import figure, output_file, show
import math
x2 = list(range(1,11))
y4 = [math.pow(i,2) for i in x2]
y2 = [math.log10(pow(10,i)) for i in x2]
fig = figure(y_axis_type = ''log'')
fig.circle(x2, y2,size = 5, color = ''blue'', legend = ''blue circle'')
fig.line(x2,y4, line_width = 2, line_color = ''red'', legend = ''red line'')
fig.legend.location = ''top_left''
fig.legend.title = ''Legend Title''
fig.legend.title_text_font = ''Arial''
fig.legend.title_text_font_size = ''20pt''
show(fig)

Output


Customising legends

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