import matplotlib.pyplot as plt
def draw_text(ax):
from mpl_toolkits.axes_grid.anchored_artists import AnchoredText
at = AnchoredText("Figure 1a",
loc=2, prop=dict(size=8), frameon=True,
)
at.patch.set_boxstyle("round,pad=0.,rounding_size=0.2")
ax.add_artist(at)
at2 = AnchoredText("Figure 1(b)",
loc=3, prop=dict(size=8), frameon=True,
bbox_to_anchor=(0., 1.),
bbox_transform=ax.transAxes
)
at2.patch.set_boxstyle("round,pad=0.,rounding_size=0.2")
ax.add_artist(at2)
def draw_circle(ax): # circle in the canvas coordinate
from mpl_toolkits.axes_grid.anchored_artists import AnchoredDrawingArea
from matplotlib.patches import Circle
ada = AnchoredDrawingArea(20, 20, 0, 0,
loc=1, pad=0., frameon=False)
p = Circle((10, 10), 10)
ada.da.add_artist(p)
ax.add_artist(ada)
def draw_ellipse(ax):
from mpl_toolkits.axes_grid.anchored_artists import AnchoredEllipse
# draw an ellipse of width=0.1, height=0.15 in the data coordinate
ae = AnchoredEllipse(ax.transData, width=0.1, height=0.15, angle=0.,
loc=3, pad=0.5, borderpad=0.4, frameon=True)
ax.add_artist(ae)
def draw_sizebar(ax):
from mpl_toolkits.axes_grid.anchored_artists import AnchoredSizeBar
# draw a horizontal bar with length of 0.1 in Data coordinate
# (ax.transData) with a label underneath.
asb = AnchoredSizeBar(ax.transData,
0.1,
r"1$^{\prime}$",
loc=8,
pad=0.1, borderpad=0.5, sep=5,
frameon=False)
ax.add_artist(asb)
if 1:
ax = plt.gca()
ax.set_aspect(1.)
draw_text(ax)
draw_circle(ax)
draw_ellipse(ax)
draw_sizebar(ax)
plt.show()
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