Well I can help with the smallest of your problems:
MPL uses days past 1/1/1 0:0:0 and
01-JAN-0001 00:00:00 in JD = 1721425.5
so: JD = MPL_DAY + 1721425.5
but - there is no "integrated" way to do this automatically inside the plotting system.
Ted
···
----- Original Message -----
From: Yannick Copin <y.copin@...671...>
Date: Thursday, August 10, 2006 5:16 am
Subject: [Matplotlib-users] Plot dates and julian dates on the same figure
Hi,
I'd like to plot some dates on a figure with two different x-axes:
the
bottom one with date labels (strings), and the top one with julian
date
labels (integers), see
http://www.astrosurf.com/snweb2/2005/05el/curves/05elF_10.jpg for
an
example.I tried to follow the method mentionned in
http://sourceforge.net/mailarchive/message.php?msg_id=11822985,
but
unfortunately, this didn't work: as mentionned in
http://sourceforge.net/mailarchive/message.php?msg_id=11824491, it
looks
impossible to use different tick formatters for different axes (in
my
case a DateFormatter for the bottom axis, and a FormatStrFormatter
for
the top one).Any suggestion for this???
Cheers.
PS: as a side-question, is there an integrated way to convert a
date
(e.g. matplotlib.datetime.date(2006,8,10)) to a julian date
(2453958)
using matplotlib?
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