Legend

The pygmt.Figure.legend method can automatically create a legend for symbols plotted using pygmt.Figure.plot. Legend entries are only created when the label parameter is used. For more complicated legends, including legends with multiple columns, users have to write an ASCII file with instructions for the layout of the legend items and pass it to the spec parameter of pygmt.Figure.legend. For details on how to set up such a file, please see the GMT documentation at https://docs.generic-mapping-tools.org/latest/legend.html#legend-codes.

import pygmt

fig = pygmt.Figure()

fig.basemap(projection="x2c", region=[0, 7, 3, 7], frame=True)

fig.plot(
    data="@Table_5_11.txt",
    style="c0.40c",
    fill="lightgreen",
    pen="faint",
    label="Apples",
)
fig.plot(data="@Table_5_11.txt", pen="1.5p,gray", label="My lines")
fig.plot(data="@Table_5_11.txt", style="t0.40c", fill="orange", label="Oranges")

fig.legend(position="JTR+jTR+o0.2c", box=True)

fig.show()