.. _pylab_examples-newscalarformatter_demo:

pylab_examples example code: newscalarformatter_demo.py
=======================================================



.. plot:: /home/travis/build/jenshnielsen/matplotlib/doc/mpl_examples/pylab_examples/newscalarformatter_demo.py

::

    #!/usr/bin/env python
    # Demonstrating the improvements and options of the proposed new ScalarFormatter
    from pylab import *
    from matplotlib.ticker import OldScalarFormatter
    
    x = frange(0, 1, .01)
    f = figure(figsize=(6, 6))
    f.text(0.5, 0.975, 'The old formatter', horizontalalignment='center', verticalalignment='top')
    subplot(221)
    plot(x*1e5 + 1e10, x*1e-10 + 1e-5)
    gca().xaxis.set_major_formatter(OldScalarFormatter())
    gca().yaxis.set_major_formatter(OldScalarFormatter())
    subplot(222)
    plot(x*1e5, x*1e-4)
    gca().xaxis.set_major_formatter(OldScalarFormatter())
    gca().yaxis.set_major_formatter(OldScalarFormatter())
    subplot(223)
    plot(-x*1e5 - 1e10, -x*1e-5 - 1e-10)
    gca().xaxis.set_major_formatter(OldScalarFormatter())
    gca().yaxis.set_major_formatter(OldScalarFormatter())
    subplot(224)
    plot(-x*1e5, -x*1e-4)
    gca().xaxis.set_major_formatter(OldScalarFormatter())
    gca().yaxis.set_major_formatter(OldScalarFormatter())
    
    x = frange(0, 1, .01)
    f = figure(figsize=(6, 6))
    f.text(0.5, 0.975, 'The new formatter, default settings', horizontalalignment='center',
           verticalalignment='top')
    subplot(221)
    plot(x*1e5 + 1e10, x*1e-10 + 1e-5)
    gca().xaxis.set_major_formatter(ScalarFormatter())
    gca().yaxis.set_major_formatter(ScalarFormatter())
    subplot(222)
    plot(x*1e5, x*1e-4)
    gca().xaxis.set_major_formatter(ScalarFormatter())
    gca().yaxis.set_major_formatter(ScalarFormatter())
    subplot(223)
    plot(-x*1e5 - 1e10, -x*1e-5 - 1e-10)
    gca().xaxis.set_major_formatter(ScalarFormatter())
    gca().yaxis.set_major_formatter(ScalarFormatter())
    subplot(224)
    plot(-x*1e5, -x*1e-4)
    gca().xaxis.set_major_formatter(ScalarFormatter())
    gca().yaxis.set_major_formatter(ScalarFormatter())
    
    x = frange(0, 1, .01)
    f = figure(figsize=(6, 6))
    f.text(0.5, 0.975, 'The new formatter, no numerical offset', horizontalalignment='center',
           verticalalignment='top')
    subplot(221)
    plot(x*1e5 + 1e10, x*1e-10 + 1e-5)
    gca().xaxis.set_major_formatter(ScalarFormatter(useOffset=False))
    gca().yaxis.set_major_formatter(ScalarFormatter(useOffset=False))
    subplot(222)
    plot(x*1e5, x*1e-4)
    gca().xaxis.set_major_formatter(ScalarFormatter(useOffset=False))
    gca().yaxis.set_major_formatter(ScalarFormatter(useOffset=False))
    subplot(223)
    plot(-x*1e5 - 1e10, -x*1e-5 - 1e-10)
    gca().xaxis.set_major_formatter(ScalarFormatter(useOffset=False))
    gca().yaxis.set_major_formatter(ScalarFormatter(useOffset=False))
    subplot(224)
    plot(-x*1e5, -x*1e-4)
    gca().xaxis.set_major_formatter(ScalarFormatter(useOffset=False))
    gca().yaxis.set_major_formatter(ScalarFormatter(useOffset=False))
    
    x = frange(0, 1, .01)
    f = figure(figsize=(6, 6))
    f.text(0.5, 0.975, 'The new formatter, with mathtext', horizontalalignment='center',
           verticalalignment='top')
    subplot(221)
    plot(x*1e5 + 1e10, x*1e-10 + 1e-5)
    gca().xaxis.set_major_formatter(ScalarFormatter(useMathText=True))
    gca().yaxis.set_major_formatter(ScalarFormatter(useMathText=True))
    subplot(222)
    plot(x*1e5, x*1e-4)
    gca().xaxis.set_major_formatter(ScalarFormatter(useMathText=True))
    gca().yaxis.set_major_formatter(ScalarFormatter(useMathText=True))
    subplot(223)
    plot(-x*1e5 - 1e10, -x*1e-5 - 1e-10)
    gca().xaxis.set_major_formatter(ScalarFormatter(useMathText=True))
    gca().yaxis.set_major_formatter(ScalarFormatter(useMathText=True))
    subplot(224)
    plot(-x*1e5, -x*1e-4)
    gca().xaxis.set_major_formatter(ScalarFormatter(useMathText=True))
    gca().yaxis.set_major_formatter(ScalarFormatter(useMathText=True))
    show()
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)