Change facecolor in text matplotlib
Question:
I want to change the text and the facecolor in a textbox that I have on a graph.
I create my text box like this :
props = dict(boxstyle='round', facecolor='red', alpha=0.3)
ax.text(0.03, 0.97, 'test', transform=ax.transAxes, fontsize=10, verticalalignment='top', bbox=props)
Changing the text is fine, I do :
ax.texts[-1].set_text('new text')
However I cannot find the command to change the color.
Basically I would like something like
ax.texts[-1].set_color('blue').
Answers:
You can do this by accessing the patch object associated with the text box. I have found this example helpful.
from pylab import subplot, show, draw
ax = subplot(111)
props = dict(boxstyle='round', facecolor='red', alpha=0.3)
t = ax.text(0.03, 0.97, 'test', transform=ax.transAxes, fontsize=10, verticalalignment='top', bbox=props)
show()
bb = t.get_bbox_patch()
bb.set_facecolor('blue')
draw()
I think the following is simplier:
t = ax.text(0.03, 0.97, 'test', transform=ax.transAxes, fontsize=10, verticalalignment='top', `bbox=dict(facecolor='blue', alpha=0.5)`)
Simply putting in: bbox=dict(facecolor='blue', alpha=0.5) in the ax.text statement changes the color. I added the alpha to indicate that other attributes can also be changed.
I want to change the text and the facecolor in a textbox that I have on a graph.
I create my text box like this :
props = dict(boxstyle='round', facecolor='red', alpha=0.3)
ax.text(0.03, 0.97, 'test', transform=ax.transAxes, fontsize=10, verticalalignment='top', bbox=props)
Changing the text is fine, I do :
ax.texts[-1].set_text('new text')
However I cannot find the command to change the color.
Basically I would like something like
ax.texts[-1].set_color('blue').
You can do this by accessing the patch object associated with the text box. I have found this example helpful.
from pylab import subplot, show, draw
ax = subplot(111)
props = dict(boxstyle='round', facecolor='red', alpha=0.3)
t = ax.text(0.03, 0.97, 'test', transform=ax.transAxes, fontsize=10, verticalalignment='top', bbox=props)
show()
bb = t.get_bbox_patch()
bb.set_facecolor('blue')
draw()
I think the following is simplier:
t = ax.text(0.03, 0.97, 'test', transform=ax.transAxes, fontsize=10, verticalalignment='top', `bbox=dict(facecolor='blue', alpha=0.5)`)
Simply putting in: bbox=dict(facecolor='blue', alpha=0.5) in the ax.text statement changes the color. I added the alpha to indicate that other attributes can also be changed.