Matplotlib V1.3 suptitle

Peter_Bloomfield · August 23, 2013, 1:57pm

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

Benjamin_Root · August 23, 2013, 2:43pm

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

···

On Fri, Aug 23, 2013 at 9:57 AM, Peter Bloomfield < peter.bloomfield@...2470...> 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

_Sterling_P_Smith · August 23, 2013, 3:11pm

Ben,

I am glad for the fix.

Peter,

You could use
gcf().text(x,y,'String 1',**keyw)
gcf().text(x2,y2,'String 2',**keyw)

-Sterling

···

On Aug 23, 2013, at 7:43AM, Benjamin Root wrote:

On Fri, Aug 23, 2013 at 9:57 AM, Peter Bloomfield <peter.bloomfield@...4440...70...> 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

Peter_Bloomfield · August 23, 2013, 3:21pm

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

···

On 08/23/2013 10:43 AM, Benjamin Root
wrote:

        On Fri, Aug 23, 2013 at 9:57 AM,
Peter Bloomfield <peter.bloomfield@…2470…>
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

-- 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

Benjamin_Root · August 23, 2013, 3:31pm

No issues here. Let's try simplifying it further and further. Try the
following script.

import matplotlib.pyplot as plt
plt.suptitle("Study# : Pos9.img")
plt.show()

Does that work for you? If it does, iterate on that code example, adding
pieces back into it and see when it breaks.

Ben Root

···

On Fri, Aug 23, 2013 at 11:21 AM, Peter Bloomfield < peter.bloomfield@...2470...> wrote:

On 08/23/2013 10:43 AM, Benjamin Root wrote:

On Fri, Aug 23, 2013 at 9:57 AM, Peter Bloomfield < > peter.bloomfield@...2470...> 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_Bloomfield · August 23, 2013, 4:02pm

The example works, and changing it to
Though now, I need to apologise, in my original email I should have
added that I am using

from matplotlib.backends.backend_pdf import PdfPages
from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt
PDF_Filename = “Test.pdf”
OutPDF = PdfPages( PDF_Filename )
plt.suptitle(“Study# : Pos9.img\n{ Acquired : Feb 18, 2003 -
T_o @ 14:55:02 }”)
plt.savefig( OutPDF, dpi=600, format=“pdf” )
OutPDF.close()
and this also works, the text is now written correctly in Test.pdf.
However, if I add a second call to plt.suptitle in the script the
text added from the first call is removed, which is what was refered
to in the first response.
Cheers
Peter

···

On 08/23/2013 11:31 AM, Benjamin Root
wrote:

        On Fri, Aug 23, 2013 at 11:21 AM,
Peter Bloomfield <peter.bloomfield@…2470…>
wrote:

On 08/23/2013 10:43 AM, Benjamin Root wrote:

                        On Fri, Aug 23, 2013
at 9:57 AM, Peter Bloomfield <peter.bloomfield@…2470…>
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

          No issues here.  Let's try simplifying it further and

further. Try the following script.

import matplotlib.pyplot as plt

plt.suptitle(“Study# : Pos9.img”)

plt.show()

          Does that work for you? If it does, iterate on that
code example, adding pieces back into it and see when it
breaks.

Ben Root

  import matplotlib.pyplot

as plt

  plt.suptitle( "Study# : Pos9.img\n{ Acquired :

Feb 18, 2003 - T_o @ 14:55:02 }")

plt.show()

also works.

  to write a pdf file of the

save the figure.

  I extended the example to a small script