matplotlib-users Mailing List for matplotlib

On Jan 30, 2008 4:41 AM, Bernhard Voigt <Ber...@de...> wrote:
> Hi,
>
> I was using something like this:
>
> f = pylab.figure()
> f.text(.4, .95, 'My Title') # coordinates are window coordinates from 0 to 1
> pylab.subplot(421)
if you do
 >>> f.text(.5, .95, 'My Title', horizontalalignment='center')
you will get centering for free and won't have to do the .4 hack
JDH

Hi,
I was using something like this:
f = pylab.figure()
f.text(.4, .95, 'My Title') # coordinates are window coordinates from 0 to 1
pylab.subplot(421)
...
This could be made more robust by checking the extend and location of
the subplots and length of the title...
Cheers! Bernhard
On 1/24/08, Tommy Grav <tg...@ma...> wrote:
> I have a plot that is divided into four subplots.
>
> pylab.figure()
> pylab.subplot(221)
> pylab.plot(a,b,"k-")
> pylab.subplot(222)
> pylab.plot(a,b,"k-")
> pylab.subplot(223)
> pylab.plot(a,b,"k-")
> pylab.subplot(224)
> pylab.plot(a,b,"k-")
>
> I would like to add a title to the entire plot, but pylab.title() only
> applies to the most recent subplot. I have tried
>
> pylab.figure()
> pylab.subplot(111)
> pylab.title("Title Here")
> pylab.subplot(221)
> pylab.plot(a,b,"k-")
> pylab.subplot(222)
> pylab.plot(a,b,"k-")
> pylab.subplot(223)
> pylab.plot(a,b,"k-")
> pylab.subplot(224)
> pylab.plot(a,b,"k-")
>
> but this does not work as I do not create a plot for
> the subplot(111) instance. Is there some way of getting
> the type of title I want easily?
>
> Cheers
> Tommy
>
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I have functions which plot multiple items to an axis. Often, I have
the function explicitly turn interactive mode off and then I turn it
back on to what it was before my function was called. At the end of
my function, I call draw_if_interactive().
Suppose the user had interactive mode on prior to the function call.
The problem I am having is that draw_if_interactive() seems to have no
effect---no figure is drawn unless the user makes a subsequent call to
show(). Is there a way around this?

Daehyok Shin wrote:
> Thanks for your help.
> I didn't know set_ylim can the reversed limits. I am wondering if it
> is not a good idea to introduce a method such as axis.set_direction().
> Or, axis.set_origin().
> 
There are Axes methods invert_xaxis() and invert_yaxis() in recent 
versions of mpl; I don't remember who added them or when.
Eric

Thanks for your help.
I didn't know set_ylim can the reversed limits. I am wondering if it
is not a good idea to introduce a method such as axis.set_direction().
Or, axis.set_origin().
Daehyok Shin
On Jan 29, 2008 5:16 PM, Eric Firing <ef...@ha...> wrote:
> In [1]:plot(arange(10))
> Out[1]:[<matplotlib.lines.Line2D object at 0x908ee0c>]
>
> In [2]:ax = gca()
>
> In [3]:ax.set_ylim(ax.get_ylim()[::-1])
> Out[3]:(9.0, 0.0)
>
> In [4]:draw()
>
> In [5]:
>
>
> The method in line 3 should work on new and old versions of matplotlib.
> The basic idea is that when axis limits are set, you specify the bottom,
> then the top (or the right, then the left), not min and then max.
>
> Eric
>
>
> Daehyok Shin wrote:
> > I like to reverse the direction of y axis - from top to bottom.
> > Anyone to help me?
> > I initially thought it may be easy, but it turned out much harder to
> > find THE SOLUTION.
> > Thanks.
> >
> > Daehyok Shin
> >
> > -------------------------------------------------------------------------
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> > Defy all challenges. Microsoft(R) Visual Studio 2008.
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>
>
-- 
Daehyok Shin, PhD
Geography Department
University of North Carolina-Chapel Hill
USA