Emoji missing when use plt.savefig()

I am trying to use matplotlib draw frequency of emoji used in text. Emoji looks good when I called plt.show() to show the figure.

But after I call plt.savefig("test.png") to save figures, the emojis were missing.

Is there any way to show emoji in png files? Thank you!

My system is Mac OS X Yosemite 10.10.3, my matplotlib version is 1.3.1.

Which backend are you using? I suspect the OS is supplying the emoji images
through the GUI framework, so it wouldn't work in all backends, nor have we
ever written tests for this. I doubt it would be trivial to add support for
it throughout mpl.
On Jun 2, 2015 4:04 PM, "yeqingyan" [email protected] wrote:

I am trying to use matplotlib draw frequency of emoji used in text. Emoji
looks good when I called plt.show() to show the figure.
[image: emoji_good]
https://cloud.githubusercontent.com/assets/8574101/7945703/4fcef0a2-0927-11e5-8810-f98a8e658e3c.png

But after I call plt.savefig("test.png") to save figures, the emojis were
missing.
[image: emoji_missing]
https://cloud.githubusercontent.com/assets/8574101/7945725/72ff83c0-0927-11e5-92aa-e477c8d3a1cf.png

Is there any way to show emoji in png files? Thank you!

My system is Mac OS X Yosemite 10.10.3, my matplotlib version is 1.3.1.

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#4492.

I think the backend I used is MacOSX. I got it by running following commands:

import matplotlib
matplotlib.get_backend()
'MacOSX'

@WeatherGod

@WeatherGod emoji are just unicode, support only depneds on the font being use. The issue here is that the font being used by osx is a system font which has them and for the png I bet it is falling back to the fonts we ship. Explicitly setting the text to use a font that has the emoji glyphs should be all that is needed.

Wow. Talk about something cool that works completely by accident!

I wonder if resetting the font list cache might help here? I don't know how
well the font-finding mechanisms work on macs, but it should pick up the
system font, no?

On Wed, Jun 3, 2015 at 8:44 AM, Michael Droettboom <[email protected]

wrote:

Wow. Talk about something cool that works completely by accident!

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Thank you for your reply! I followed font example here http://matplotlib.org/examples/pylab_examples/fonts_demo.html, I tried to set the emoji font family,but I still got the same result, the emoji looks good after call show function, but they are missing after I save it to png files.

from matplotlib.font_manager import FontProperties
from pylab import *

subplot(111, axisbg='w')

font0 = FontProperties()
alignment = {'horizontalalignment':'center', 'verticalalignment':'baseline'}
###  Show family options

family = ['Apple Color Emoji', 'Apple Color Emoji', 'Apple Color Emoji', 'Apple Color Emoji', 'Apple Color Emoji']

font1 = font0.copy()
font1.set_size('large')

t = text(-0.8, 0.9, 'family', fontproperties=font1,
         **alignment)

yp = [0.7, 0.5, 0.3, 0.1, -0.1, -0.3, -0.5]

for k in range(5):
    font = font0.copy()
    font.set_family(family[k])
    if k == 2:
        font.set_name('Script MT')
    #print emoji
    t = text(-0.8, yp[k], '\xf0\x9f\x98\x8d'.decode("utf-8"), fontproperties=font,
             **alignment)
axis([-1,1,0,1])
show()

In show window:

After save it to png file:

I think you want to be setting the font name, not family, ex

import matplotlib.pyplot as plt

fig, ax = plt.subplots()
t = ax.text(.5, .5, b'\xF0\x9F\x98\x85\xf0\x9f\x98\x8d\xF0\x9F\x98\x85'.decode('utf-8'), fontname='symbola', fontsize=30, ha='center')
t = ax.text(.5, .25, '😅😍😅', fontname='symbola', fontsize=30, ha='center')

from matplotlib.figure_manager import fontManager as fm

fm.findfont(prop)

will let you run the font search and will tell you (via a warning) if it fails.

@tacaswell

@tacaswell - I hope you've lined this example up for the state of the library talk! 😄

The plan is emoji + hello in a collection of languages.

Do we still not support right-to-left fonts such as arabic and hebrew?

On Mon, Jun 22, 2015 at 1:34 PM, Thomas A Caswell [email protected]
wrote:

The plan is emoji + hello in a collection of languages.

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Ah, I bet we do not.

On Mon, Jun 22, 2015 at 1:45 PM Benjamin Root [email protected]
wrote:

Do we still not support right-to-left fonts such as arabic and hebrew?

On Mon, Jun 22, 2015 at 1:34 PM, Thomas A Caswell <
[email protected]>
wrote:

The plan is emoji + hello in a collection of languages.

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<
#4492 (comment)

.

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Yeah -- the text layout algorithm is still "Naive American [TM]"

On Mon, Jun 22, 2015 at 1:47 PM Thomas A Caswell [email protected]
wrote:

Ah, I bet we do not.

On Mon, Jun 22, 2015 at 1:45 PM Benjamin Root [email protected]
wrote:

Do we still not support right-to-left fonts such as arabic and hebrew?

On Mon, Jun 22, 2015 at 1:34 PM, Thomas A Caswell <
[email protected]>
wrote:

The plan is emoji + hello in a collection of languages.

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<

#4492 (comment)

.

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<
#4492 (comment)

.

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@tacaswell

I tried @tacaswell's suggestions but with Apple Emoji.

import matplotlib.pyplot as plt

fig, ax = plt.subplots()
t = ax.text(.5, .25, '😅😍😅', fontname='Apple Color Emoji', fontsize=30, ha='center')

plt.show() displays nicely:

But I couldn't save it and instead get the same boxes as shown above in the thread. I could save with Symbola font though. So is there any way I can take advantage of Apple Emoji while saving ?

I use Mac OS X 10.11.5 and Matplotlib 1.5.1

@tacaswell

This is probably related to the differences in the macosx's font lookup
which enables it to find more fonts than what matplotlib can find. Have you
tried clearing your font-cache?

On Tue, Jun 28, 2016 at 6:38 AM, Keviv [email protected] wrote:

I tried @tacaswell https://github.com/tacaswell's suggestions but with Apple
Emoji.

import matplotlib.pyplot as plt

fig, ax = plt.subplots()
t = ax.text(.5, .25, '😅😍😅', fontname='Apple Color Emoji', fontsize=30, ha='center')

plt.show() displays nicely:

[image: screen shot 2016-06-28 at 12 05 05 pm]
https://cloud.githubusercontent.com/assets/6368653/16412435/777411d4-3d2c-11e6-9b5a-d7175ed99ce3.jpg

But I couldn't save it and instead get the same boxes as shown above in
the thread. I could save with Symbola font though. So is there any way I
can take advantage of Apple Emoji while saving ? Like copying the font to
somewhere inside matplotlib folder ?

I use Mac OS X 10.11.5 and Matplotlib 1.5.1

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if you mean, deleting the .matplotlib folder, then yes; I've tried that option.

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Emoji missing when use plt.savefig() #4492

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WeatherGod commented on Jun 2, 2015

yeqingyan commented on Jun 2, 2015

tacaswell commented on Jun 3, 2015

mdboom commented on Jun 3, 2015

WeatherGod commented on Jun 3, 2015

yeqingyan commented on Jun 3, 2015

tacaswell commented on Jun 19, 2015

pelson commented on Jun 22, 2015

tacaswell commented on Jun 22, 2015

WeatherGod commented on Jun 22, 2015

tacaswell commented on Jun 22, 2015

mdboom commented on Jun 22, 2015

samsaara commented on Jun 28, 2016

WeatherGod commented on Jun 28, 2016

samsaara commented on Jun 28, 2016

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