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pylab_examples example code: newscalarformatter_demo.py¶

../../_images/newscalarformatter_demo_00.png

../../_images/newscalarformatter_demo_01.png

../../_images/newscalarformatter_demo_02.png

../../_images/newscalarformatter_demo_03.png

#!/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 Search examples)