TimePlotDate¶
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class
astropy.time.
TimePlotDate
(val1, val2, scale, precision, in_subfmt, out_subfmt, from_jd=False)[source] [edit on github]¶ Bases:
astropy.time.TimeFromEpoch
Matplotlib
plot_date
input: 1 + number of days from 0001-01-01 00:00:00 UTCThis 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
cache
Return the cache associated with this instance. epoch_format
epoch_scale
epoch_val
epoch_val2
jd2_filled
mask
masked
name
scale
Time scale unit
value
Methods Summary
mask_if_needed
(value)set_jds
(val1, val2)Initialize the internal jd1 and jd2 attributes given val1 and val2. to_value
([parent])Return time representation from internal jd1 and jd2. Attributes Documentation
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cache
¶ Return the cache associated with this instance.
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epoch_format
= 'jd'¶
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epoch_scale
= 'utc'¶
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epoch_val
= 1721424.5¶
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epoch_val2
= None¶
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jd2_filled
¶
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mask
¶
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masked
¶
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name
= 'plot_date'¶
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scale
¶ Time scale
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unit
= 1.0¶
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value
¶
Methods Documentation
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mask_if_needed
(value) [edit on github]¶
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set_jds
(val1, val2) [edit on github]¶ 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).
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to_value
(parent=None) [edit on github]¶ Return time representation from internal jd1 and jd2. This is the base method that ignores
parent
and requires that subclasses implement thevalue
property. Subclasses that requireparent
or have other optional args forto_value
should compute and return the value directly.
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