Thanks Jae-Joon for your explanations.
My second question has easily been solved after setting the label position.
However, I am still stuck snapping the axis pairs. I have two different
scaled data sources. First three data (dccnConc, dccnConAmb, and dccnConSTP
are plotted on the main host y-axis, and dccnSS, and dccnSS_Amb are plotted
on the parasite left y-axis. With twin and proper Affine2D transformation I
could not make the secondary y-axis data being shown on the figure.
The script and the data file I am using is under
http://code.google.com/p/ccnworks/source/browse/#svn/trunk
I execute the script as shown below:
./dccn_plot.py 09_03_26_11_36_15.dmtccnc.combined.raw
Any further thoughts?
On Thu, Sep 24, 2009 at 10:38 PM, Jae-Joon Lee <lee.j.j...@gmail.com> wrote:
> The example below will give you some idea where to start.
> It uses twin function in axes_grid toolkit.
> (also see
> http://matplotlib.sourceforge.net/examples/axes_grid/parasite_simple2.html
> )
>
> You may use twinx or twiny, but you need to make both x and y axis in
> sync to each other (maybe using the "xlim_changed" or "ylim_changed"
> event).
>
> To change the title position you set_position method (the coordinate
> is in normalized axes coordinate). If you need more control, I
> recommend to use annotate function.
>
> Regards,
>
> -JJ
>
> import matplotlib.transforms as mtransforms
> import matplotlib.pyplot as plt
> from mpl_toolkits.axes_grid.parasite_axes import SubplotHost
>
> fig = plt.figure()
>
> ax1 = SubplotHost(fig, 1,1,1)
> fig.add_subplot(ax1)
>
> ax1.plot([41000, 42000, 43000], [10., 60, 80.])
>
> y_max = 90
>
> aux_trans = mtransforms.Affine2D().scale(3600., y_max) # transform
> from ax2 to ax1
>
> ax2 = ax1.twin(aux_trans)
>
> from matplotlib.dates import DateFormatter, HourLocator
> locator = HourLocator()
> ax2.xaxis.set_major_locator(locator)
> formatter = DateFormatter(r'$%H^h$')
> ax2.xaxis.set_major_formatter(formatter)
>
> t = ax1.set_title("Title")
> t.set_position((0.5, 1.05))
>
> plt.show()
>
--
Gökhan
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