Re: [Matplotlib-users] FancyBBox set_width

[Goyo <goy...@gm...>]

2012/8/19 Peter Combs <pco...@gm...>:
> Hi all,
> I'm trying to have a Text object with a fancy box, as in this example:
> http://matplotlib.sourceforge.net/mpl_examples/pylab_examples/fancybox_demo2.py
> .  However, the key difference is that I want to have the box (in my case,
> I'm interested in an RArrow) be a specified width (in units of the plot),
> rather than just fitting it to the text I've given (crude ascii art below).
> The following seems not to work:
>
>
> ax = gca()
> txtobj = ax.text(0, -.1 * yrange, 'text',
>                      bbox=dict(boxstyle='rarrow'))
> txtobj.get_bbox_patch().set_
> width(SIZE_IM_INTERESTED_IN)
> draw_if_interactive()
>
> It seems like draw()ing the text object will reset the size of the BBox...
> Any idea how to fix this? At the moment, I'm experimenting with continually
> drawing, polling the get_width() method, and when it's too small, adding in
> spaces around the text field, but that seems both not to work reliably, and
> be an incredibly boneheaded way to go about it.

Not ideal but better:

from pyplot import *
subplot(111)
text(0.1, 0.3, 'XXXXXXXXXXXXXXX', alpha=0, bbox=dict(boxstyle='rarrow'))
text(0.1, 0.3, 'short')
text(0.1, 0.6, 'XXXXXXXXXXXXXXX', alpha=0, bbox=dict(boxstyle='rarrow'))
text(0.1, 0.6, 'looooooooooong')
show()

Goyo