testbed/matplotlib__matplotlib/galleries/examples/axisartist/demo_axisline_style.py

"""
================
Axis line styles
================

This example shows some configurations for axis style.

Note: The `mpl_toolkits.axisartist` axes classes may be confusing for new
users. If the only aim is to obtain arrow heads at the ends of the axes,
rather check out the :doc:`/gallery/spines/centered_spines_with_arrows`
example.
"""

import matplotlib.pyplot as plt
import numpy as np

from mpl_toolkits.axisartist.axislines import AxesZero

fig = plt.figure()
ax = fig.add_subplot(axes_class=AxesZero)

for direction in ["xzero", "yzero"]:
    # adds arrows at the ends of each axis
    ax.axis[direction].set_axisline_style("-|>")

    # adds X and Y-axis from the origin
    ax.axis[direction].set_visible(True)

for direction in ["left", "right", "bottom", "top"]:
    # hides borders
    ax.axis[direction].set_visible(False)

x = np.linspace(-0.5, 1., 100)
ax.plot(x, np.sin(x*np.pi))

plt.show()