Re: [Matplotlib-users] Matplotlib V1.3 suptitle

[Peter B. <pet...@ca...>]

On 08/23/2013 10:43 AM, Benjamin Root wrote:
>
>
> On Fri, Aug 23, 2013 at 9:57 AM, Peter Bloomfield 
> <pet...@ca... <mailto:pet...@ca...>> wrote:
>
>     Good morning,
>
>     I am running openSuSE 12.2, and this morning I upgraded matplotlib
>     to v1.3, and now I am having a problem with suptitle.
>     I use the following lines to put a title and legend onto a plot figure
>
>     import matplotlib.pyplot as plt
>
>         plt.figure(1)
>
>     plt.suptitle( "Study# : " + os.path.basename(
>     inImage_IO.IO_FileName ) + \
>
>     "\n" + "{ Acquired : " + \
>
>     AcqDateTime.strftime( "%b %d, %Y - $T_o$ @ %H:%M:%S" ) + " }", \
>
>     y=0.98, weight="roman", size="large" )
>
>     plt.suptitle( "{Creation Date : " + AnalysisTOD + "}",
>
>     x=0.86, y=0.03, weight="roman", size="x-small" )
>
>
>     Under v1.3, I only get the 'Creation Date : ...' text at the
>     bottom of the figure the 'Study# ...' string is not present at the
>     top. If I change
>     it to
>
>     import matplotlib.pyplot as plt
>
>         plt.figure(1)
>
>     plt.suptitle( "Study# : ", y=0.98, weight="roman", size="large" )
>
>     plt.suptitle( "{Creation Date : " + AnalysisTOD + "}",
>
>     x=0.86, y=0.03, weight="roman", size="x-small" )
>
>     the 'Creation Date : ...' text at the bottom of the figure the
>     'Study# : ' string is at the top.
>
>
>     So the problem is in the string construct in the first example.
>     Does anybody know of a way to get around this?
>
>
>     Thanks in advance
>
>
>     Peter
>
>
> Oh, wow... we didn't think anybody was using that "misfeature".  This 
> was a bug we fixed for 1.3, in that users complained that calling 
> plt.title() would update an existing title, but plt.suptitle() would 
> not (multiple calls would just result in text overlaid on top of each 
> other).  We fixed this for 1.3 so that there is a single text object 
> that is kept and is revised in subsequent calls to suptitle().  To get 
> what you want, you will have to consolidate those strings into one.
>
> Cheers!
> Ben
>
Thanks for getting back to me, but I have tried to do as you suggest, 
but to no avail, and here I apologise for my lack of knowledge of 
python/matplotlib.
I consolidated the strings into one, titleStr

     titleStr = "Study# : " + os.path.basename( inImage_IO.IO_FileName ) + \
            "\n" + "{ Acquired : " + \
                 AcqDateTime.strftime( "%b %d, %Y - $T_o$ @ %H:%M:%S" ) 
+ " }"
     plt.suptitle( titleStr, y=0.98, weight="roman", size="large" )

which should write the string
     'Study# : Pos9.img\n{ Acquired : Feb 18, 2003 - $T_o$ @ 14:55:02 }'
at the top of the figure,  but it did not, so I thought it is the "\n", 
and tried

     titleStr = "Study# : " + os.path.basename( inImage_IO.IO_FileName )
     plt.suptitle( titleStr, y=0.98, weight="roman", size="large" )

which should write the string
     'Study# : Pos9.img'
and this again failed to write the suptitle in the figure.

Am I being dumb (rhetorical)? What is the best way to consolidate the 
strings to work with suptitle, many thanks in advance.

Cheers

Peter



-- 
Peter M. Bloomfield
Physicist,
PET Centre,
Centre for Addiction and Mental Health,
250 College St.,
Toronto, Ontario,
Canada M5T 1R8
Tel: 416 535 8501 Ext. 4243