You are reading an old version of the documentation (v1.5.1). For the latest version see

We're updating the default styles for Matplotlib 2.0

Learn what to expect in the new updates



This Page

pylab_examples example code: manual_axis.pyΒΆ

(Source code, png, hires.png, pdf)

The techniques here are no longer required with the new support for
spines in matplotlib -- see

This example should be considered deprecated and is left just for demo
purposes for folks wanting to make a pseudo-axis

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.lines as lines

def make_xaxis(ax, yloc, offset=0.05, **props):
    xmin, xmax = ax.get_xlim()
    locs = [loc for loc in ax.xaxis.get_majorticklocs()
            if loc >= xmin and loc <= xmax]
    tickline, = ax.plot(locs, [yloc]*len(locs), linestyle='',
                        marker=lines.TICKDOWN, **props)
    axline, = ax.plot([xmin, xmax], [yloc, yloc], **props)
    for loc in locs:
        ax.text(loc, yloc - offset, '%1.1f' % loc,

def make_yaxis(ax, xloc=0, offset=0.05, **props):
    ymin, ymax = ax.get_ylim()
    locs = [loc for loc in ax.yaxis.get_majorticklocs()
            if loc >= ymin and loc <= ymax]
    tickline, = ax.plot([xloc]*len(locs), locs, linestyle='',
                        marker=lines.TICKLEFT, **props)
    axline, = ax.plot([xloc, xloc], [ymin, ymax], **props)

    for loc in locs:
        ax.text(xloc - offset, loc, '%1.1f' % loc,

props = dict(color='black', linewidth=2, markeredgewidth=2)
x = np.arange(200.)
y = np.sin(2*np.pi*x/200.) + np.random.rand(200) - 0.5
fig = plt.figure(facecolor='white')
ax = fig.add_subplot(111, frame_on=False)
ax.axison = False
ax.plot(x, y, 'd', markersize=8, markerfacecolor='blue')
ax.set_xlim(0, 200)
ax.set_ylim(-1.5, 1.5)
make_xaxis(ax, 0, offset=0.1, **props)
make_yaxis(ax, 0, offset=5, **props)

Keywords: python, matplotlib, pylab, example, codex (see Search examples)