CODEWITHSUNDEEP
pythonmatplotlib
tylerthemiler
tylerthemiler

Reputation: 5746

Matplotlib suptitle prints over old title

I am trying to use suptitle to print a title, and I want to occationally replace this title. Currently I am using:

self.ui.canvas1.figure.suptitle(title)

where figure is a matplotlib figure (canvas1 is an mplCanvas, but that is not relevant) and title is a python string.

Currently, this works, except for the fact that when I run this code again later, it just prints the new text on top of the old, resulting in a gargeled, unreadable title.

How do you replace the old suptitle of a figure, instead of just printing over?

Thanks,

Tyler

Upvotes: 13

Views: 6054

Answers (3)

Maciek
Maciek

Reputation: 590

I had similar problem. Method suptitile of figure object show title over old title (previously created). This is definately a bug in matplotlib. Especially as you can find this code in figure.py (part of matplotlib package):

        (...)

        sup = self.text(x, y, t, **kwargs)
        if self._suptitle is not None:
            self._suptitle.set_text(t)
            self._suptitle.set_position((x, y))
            self._suptitle.update_from(sup)
        else:
            self._suptitle = sup
        return self._suptitle

Luckily, this bug is present in matplotlib version 1.2.1 but it was later fixed (in 2.2.4, it is no longer present). Try update of matplotlib, it will fix it for you.

Upvotes: 0

jseabold
jseabold

Reputation: 8283

Resurrecting this old thread because I recently ran into this. There is a references to the Text object returned by the original setting of suptitle in figure.texts. You can use this to change the original until this is fixed in matplotlib.

Upvotes: 8

bmu
bmu

Reputation: 36174

figure.suptitle returns a matplotlib.text.Text instance. You can save it and set the new title:

txt = fig.suptitle('A test title')
txt.set_text('A better title')
plt.draw()

Upvotes: 19

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