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Modify rainbow_text() function to use annotate() function #25993

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Merged
merged 8 commits into from
Jun 3, 2023
Merged

Modify rainbow_text() function to use annotate() function #25993

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b59214e
Modify rainbow_text() function to use annotate() function
niranjank2022 May 28, 2023
8e11da2
Add doctring
niranjank2022 May 28, 2023
9a81c34
Adjust code
niranjank2022 May 28, 2023
4898925
Add doctring for function
niranjank2022 May 29, 2023
93c3a33
Remove the variable t
niranjank2022 May 29, 2023
3c10c84
Modify function doctring
niranjank2022 May 29, 2023
0b2990b
Modify function doctring
niranjank2022 May 29, 2023
bc0fb7c
Remove the excess space
niranjank2022 Jun 2, 2023
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42 changes: 15 additions & 27 deletions galleries/examples/text_labels_and_annotations/rainbow_text.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,8 +25,6 @@

import matplotlib.pyplot as plt

from matplotlib.transforms import Affine2D, offset_copy


def rainbow_text(x, y, strings, colors, orientation='horizontal',
ax=None, **kwargs):
Expand All @@ -45,42 +43,32 @@ def rainbow_text(x, y, strings, colors, orientation='horizontal',
orientation : {'horizontal', 'vertical'}
ax : Axes, optional
The Axes to draw into. If None, the current axes will be used.
**kwargs
All other keyword arguments are passed to plt.text(), so you can
set the font size, family, etc.
**kwargs :
All other keyword arguments are passed to plt.text() and plt.annotate(), so you
can set the font size, family, etc.
"""
if ax is None:
ax = plt.gca()
t = ax.transData
fig = ax.figure
canvas = fig.canvas

assert orientation in ['horizontal', 'vertical']
if orientation == 'vertical':
kwargs.update(rotation=90, verticalalignment='bottom')

for s, c in zip(strings, colors):
text = ax.text(x, y, s + " ", color=c, transform=t, **kwargs)
if orientation == 'horizontal':
txt = ax.text(x, y, strings[0], color=colors[0], **kwargs)
for s, c in zip(strings[1:], colors[1:]):
txt = ax.annotate(' ' + s, xy=(1, 0), xycoords=txt,
va="bottom", color=c, **kwargs)

# Need to draw to update the text position.
text.draw(canvas.get_renderer())
ex = text.get_window_extent()
# Convert window extent from pixels to inches
# to avoid issues displaying at different dpi
ex = fig.dpi_scale_trans.inverted().transform_bbox(ex)

if orientation == 'horizontal':
t = text.get_transform() + \
offset_copy(Affine2D(), fig=fig, x=ex.width, y=0)
else:
t = text.get_transform() + \
offset_copy(Affine2D(), fig=fig, x=0, y=ex.height)
elif orientation == 'vertical':
kwargs.update(rotation=90, verticalalignment='bottom')
txt = ax.text(x, y, strings[0], color=colors[0], **kwargs)
for s, c in zip(strings[1:], colors[1:]):
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you can directly do txt = annotate() even if you use the previous value of txt as parameter.

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I think I have done it now.

txt = ax.annotate(' ' + s, xy=(0, 1), xycoords=txt,
va="bottom", color=c, **kwargs)


words = "all unicorns poop rainbows ! ! !".split()
colors = ['red', 'orange', 'gold', 'lawngreen', 'lightseagreen', 'royalblue',
'blueviolet']
plt.figure(figsize=(6, 6))
plt.figure(figsize=(8, 8))
rainbow_text(0.1, 0.05, words, colors, size=18)
rainbow_text(0.05, 0.1, words, colors, orientation='vertical', size=18)

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