TimePlotDate

class astropy.time.TimePlotDate(val1, val2, scale, precision, in_subfmt, out_subfmt, from_jd=False)

Bases: astropy.time.TimeFromEpoch

Matplotlib plot_date input: 1 + number of days from 0001-01-01 00:00:00 UTC

This can be used directly in the matplotlib plot_date function:

>>> import matplotlib.pyplot as plt
>>> jyear = np.linspace(2000, 2001, 20)
>>> t = Time(jyear, format='jyear', scale='utc')
>>> plt.plot_date(t.plot_date, jyear)
>>> plt.gcf().autofmt_xdate()  # orient date labels at a slant
>>> plt.draw()

For example, 730120.0003703703 is midnight on January 1, 2000.

Attributes Summary

epoch_format
epoch_scale
epoch_val
epoch_val2
name
scale	Time scale
unit
value

Methods Summary

set_jds(val1, val2)	Initialize the internal jd1 and jd2 attributes given val1 and val2.
to_value([parent])

Attributes Documentation

epoch_format = 'jd'

epoch_scale = 'utc'

epoch_val = 1721424.5

epoch_val2 = None

name = 'plot_date'

scale

Time scale

unit = 1.0

value

Methods Documentation

set_jds(val1, val2)

Initialize the internal jd1 and jd2 attributes given val1 and val2. For an TimeFromEpoch subclass like TimeUnix these will be floats giving the effective seconds since an epoch time (e.g. 1970-01-01 00:00:00).

to_value(parent=None)