Basic geometric symbols

The pygmt.Figure.plot method can plot individual geometric symbols by passing the corresponding shortcuts to the style parameter. The 14 basic geometric symbols are shown underneath their corresponding shortcut codes.

Out:

<IPython.core.display.Image object>

import pygmt

fig = pygmt.Figure()
fig.basemap(region=[0, 8, 0, 3], projection="x3c", frame=True)

# define fontstyle for annotations
font = "30p,Helvetica-Bold"

# upper row
y = 2

# use a dash in x direction (-) with a size of 2 cm,
# linewidth is set to 4p and the linecolor to "gray40"
x = 1
fig.plot(x=x, y=y, style="-2c", pen="4p,gray40")
fig.text(x=x, y=y + 0.6, text="-", font=font)

# use a plus (+) with a size of 2 cm,
# linewidth is set to 4p and the linecolor to "gray40"
x += 1
fig.plot(x=x, y=y, style="+2c", pen="4p,gray40")
fig.text(x=x, y=y + 0.6, text="+", font=font)

# use a star (a) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" (default) and the
# color fill to "darkorange"
x += 1
fig.plot(x=3, y=y, style="a2c", pen="2p,black", color="darkorange")
fig.text(x=x, y=y + 0.6, text="a", font=font)

# use a circle (c) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" and the
# color fill to "darkred"
x += 1
fig.plot(x=4, y=y, style="c2c", pen="2p,black", color="darkred")
fig.text(x=x, y=y + 0.6, text="c", font=font)

# use a diamond (d) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" and the
# color fill to "seagreen"
x += 1
fig.plot(x=5, y=y, style="d2c", pen="2p,black", color="seagreen")
fig.text(x=x, y=y + 0.6, text="d", font=font)

# use a octagon (g) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" and the
# color fill to "dodgerblue4"
x += 1
fig.plot(x=6, y=y, style="g2c", pen="2p,black", color="dodgerblue4")
fig.text(x=x, y=y + 0.6, text="g", font=font)

# use a hexagon (h) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" and the
# color fill to "lightgray"
x += 1
fig.plot(x=7, y=y, style="h2c", pen="2p,black", color="lightgray")
fig.text(x=x, y=y + 0.6, text="h", font=font)

# lower row
y = 0.5

# use an inverted triangle (i) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" and the
# color fill to "tomato"
x = 1
fig.plot(x=x, y=y, style="i2c", pen="2p,black", color="tomato")
fig.text(x=x, y=y + 0.6, text="i", font=font)

# use pentagon (n) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" and the
# color fill to "lightseagreen"
x += 1
fig.plot(x=x, y=y, style="n2c", pen="2p,black", color="lightseagreen")
fig.text(x=x, y=y + 0.6, text="n", font=font)

# use a point (p) with a size of 2 cm,
# color fill is set to "lightseagreen"
x += 1
fig.plot(x=3, y=y, style="p2c", color="slateblue")
fig.text(x=x, y=y + 0.6, text="p", font=font)

# use square (s) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" and the
# color fill to "gold2"
x += 1
fig.plot(x=4, y=y, style="s2c", pen="2p,black", color="gold2")
fig.text(x=x, y=y + 0.6, text="s", font=font)

# use triangle (t) with a size of 2 cm,
# linewidth is set to 2p, the linecolor to "black" and the
# color fill to "magenta4"
x += 1
fig.plot(x=5, y=y, style="t2c", pen="2p,black", color="magenta4")
fig.text(x=x, y=y + 0.6, text="t", font=font)

# use cross (x) with a size of 2 cm,
# linewidth is set to 4p and the linecolor to "gray40"
x += 1
fig.plot(x=6, y=y, style="x2c", pen="4p,gray40")
fig.text(x=x, y=y + 0.6, text="x", font=font)

# use a dash in y direction (y) with a size of 2 cm,
# linewidth is set to 4p and the linecolor to "gray40"
x += 1
fig.plot(x=7, y=y, style="y2c", pen="4p,gray40")
fig.text(x=x, y=y + 0.6, text="y", font=font)

fig.show()