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Annotation with units#
The example illustrates how to create text and arrow annotations using a centimeter-scale plot.
This example requires basic_units.py
frombasic_unitsimport cm importmatplotlib.pyplotasplt fig , ax = plt.subplots () ax.annotate ("Note 01", [0.5*cm, 0.5*cm]) # xy and text both unitized ax.annotate ('local max', xy=(3*cm, 1*cm), xycoords='data', xytext=(0.8*cm, 0.95*cm), textcoords='data', arrowprops=dict(facecolor='black', shrink=0.05), horizontalalignment='right', verticalalignment='top') # mixing units w/ nonunits ax.annotate ('local max', xy=(3*cm, 1*cm), xycoords='data', xytext=(0.8, 0.95), textcoords='axes fraction', arrowprops=dict(facecolor='black', shrink=0.05), horizontalalignment='right', verticalalignment='top') ax.set_xlim (0*cm, 4*cm) ax.set_ylim (0*cm, 4*cm) plt.show ()