Matplotlib - savefig ignores facecolor when saving with transparency
0
I was surprised to find that when I use savefig with transparent=True this removed the facecolor which I might have set.
How can I not lose any background colours I manually set (including white)?
Compare
The GUI
Using transparent=False
plt.savefig('temp.pdf', format='pdf', transparent=False, bbox_inches='tight')
Using transparent=True
plt.savefig('temp.pdf', format='pdf', transparent=True, bbox_inches='tight')
MWE
import matplotlib as mpl
rc_fonts = {
"text.usetex": True,
'text.latex.preview': True,
"font.size": 50,
'mathtext.default': 'regular',
'axes.titlesize': 55,
"axes.labelsize": 55,
"legend.fontsize": 50,
"xtick.labelsize": 50,
"ytick.labelsize": 50,
'figure.titlesize': 55,
'figure.figsize': (10, 6.5), # 15, 9.3
'text.latex.preamble': [
r"""usepackage{lmodern,amsmath,amssymb,bm,physics,mathtools,nicefrac,letltxmacro,fixcmex}
"""],
"font.family": "serif",
"font.serif": "computer modern roman",
}
mpl.rcParams.update(rc_fonts)
import matplotlib.pylab as plt
from mpl_toolkits.axes_grid1.inset_locator import inset_axes, InsetPosition, mark_inset
from numpy import linspace, sin
x = linspace(0, 1, 100)
plt.clf()
ax1 = plt.gca()
ax2 = plt.axes([0, 0, 1, 1], label=str(2))
ip = InsetPosition(ax1, [0.08, 0.63, 0.45, 0.3])
ax2.set_axes_locator(ip)
ax1.plot(x, x)
ax1.plot(x, x + 0.3)
ax1.set_xlim(0, 1)
ax1.set_ylim(0, 1)
plt.setp(ax2.get_xticklabels(), backgroundcolor="white")
ax2.set_facecolor('grey')
ax1.set_yticks()
ax1.set_xticks()
ax2.set_yticks()
ax1.text(0.3, 0.3, '$1$', transform=ax1.transAxes, horizontalalignment='center', verticalalignment='center', color='black', backgroundcolor='white')
Desired output
I would like it so that any background colurs default to None (or similar), such that if it is unspecified, then it will be transparent, and if it is specified, then it will be respected and opaque. Hence I would like the following output (using a blue background for added clarity):
What I would like:
Currently if I use facecolor=(1,1,1,0) it correctly removes all the colours around the margins, but the main plot area is still white.
python matplotlib background
asked Nov 22 at 17:38
oliversm
3331521
add a comment |
0
I was surprised to find that when I use savefig with transparent=True this removed the facecolor which I might have set.
How can I not lose any background colours I manually set (including white)?
Compare
The GUI
Using transparent=False
plt.savefig('temp.pdf', format='pdf', transparent=False, bbox_inches='tight')
Using transparent=True
plt.savefig('temp.pdf', format='pdf', transparent=True, bbox_inches='tight')
MWE
import matplotlib as mpl
rc_fonts = {
"text.usetex": True,
'text.latex.preview': True,
"font.size": 50,
'mathtext.default': 'regular',
'axes.titlesize': 55,
"axes.labelsize": 55,
"legend.fontsize": 50,
"xtick.labelsize": 50,
"ytick.labelsize": 50,
'figure.titlesize': 55,
'figure.figsize': (10, 6.5), # 15, 9.3
'text.latex.preamble': [
r"""usepackage{lmodern,amsmath,amssymb,bm,physics,mathtools,nicefrac,letltxmacro,fixcmex}
"""],
"font.family": "serif",
"font.serif": "computer modern roman",
}
mpl.rcParams.update(rc_fonts)
import matplotlib.pylab as plt
from mpl_toolkits.axes_grid1.inset_locator import inset_axes, InsetPosition, mark_inset
from numpy import linspace, sin
x = linspace(0, 1, 100)
plt.clf()
ax1 = plt.gca()
ax2 = plt.axes([0, 0, 1, 1], label=str(2))
ip = InsetPosition(ax1, [0.08, 0.63, 0.45, 0.3])
ax2.set_axes_locator(ip)
ax1.plot(x, x)
ax1.plot(x, x + 0.3)
ax1.set_xlim(0, 1)
ax1.set_ylim(0, 1)
plt.setp(ax2.get_xticklabels(), backgroundcolor="white")
ax2.set_facecolor('grey')
ax1.set_yticks()
ax1.set_xticks()
ax2.set_yticks()
ax1.text(0.3, 0.3, '$1$', transform=ax1.transAxes, horizontalalignment='center', verticalalignment='center', color='black', backgroundcolor='white')
Desired output
I would like it so that any background colurs default to None (or similar), such that if it is unspecified, then it will be transparent, and if it is specified, then it will be respected and opaque. Hence I would like the following output (using a blue background for added clarity):
What I would like:
Currently if I use facecolor=(1,1,1,0) it correctly removes all the colours around the margins, but the main plot area is still white.
python matplotlib background
asked Nov 22 at 17:38
oliversm
3331521
Transparent, by definition, sets all axes backgrounds to transparent - hence the name. Why do you want to use it in the first place?
– ImportanceOfBeingErnest
Nov 22 at 19:37
A few of my figures go on posters or websites with a coloured background, and it looks nicer if the background colour matches. (Albeit I then have to be a bit more weary about filling in any background colours, if any).
– oliversm
Nov 22 at 19:47
But on a poster you would want the figure background transparent, not the axes, right? Or should the main axes be transparent as well? I have an open issue about the savefig arguments being misleading; but there is a workaround for any case. If this does not become obvious from reading the issue, I could give an answer here, if you tell what elements should be transparent or removed and which not. Also how are you preparing the poster? Via tex? Or a graphics program?
– ImportanceOfBeingErnest
Nov 22 at 19:59
@ImportanceOfBeingErnest --- I have added an example of the desired output which hopefully makes this clearer (I think I am a bit confused about the figure/axis/plot areas). Your open issue has helped me get some of the way there, but not all. The poster is prepared using LaTeX, although for websites I would just output an appropriate image format that allows transparency.
– oliversm
Nov 23 at 12:27
add a comment |
0
0
0
I was surprised to find that when I use savefig with transparent=True this removed the facecolor which I might have set.
How can I not lose any background colours I manually set (including white)?
Compare
The GUI
Using transparent=False
plt.savefig('temp.pdf', format='pdf', transparent=False, bbox_inches='tight')
Using transparent=True
plt.savefig('temp.pdf', format='pdf', transparent=True, bbox_inches='tight')
MWE
import matplotlib as mpl
rc_fonts = {
"text.usetex": True,
'text.latex.preview': True,
"font.size": 50,
'mathtext.default': 'regular',
'axes.titlesize': 55,
"axes.labelsize": 55,
"legend.fontsize": 50,
"xtick.labelsize": 50,
"ytick.labelsize": 50,
'figure.titlesize': 55,
'figure.figsize': (10, 6.5), # 15, 9.3
'text.latex.preamble': [
r"""usepackage{lmodern,amsmath,amssymb,bm,physics,mathtools,nicefrac,letltxmacro,fixcmex}
"""],
"font.family": "serif",
"font.serif": "computer modern roman",
}
mpl.rcParams.update(rc_fonts)
import matplotlib.pylab as plt
from mpl_toolkits.axes_grid1.inset_locator import inset_axes, InsetPosition, mark_inset
from numpy import linspace, sin
x = linspace(0, 1, 100)
plt.clf()
ax1 = plt.gca()
ax2 = plt.axes([0, 0, 1, 1], label=str(2))
ip = InsetPosition(ax1, [0.08, 0.63, 0.45, 0.3])
ax2.set_axes_locator(ip)
ax1.plot(x, x)
ax1.plot(x, x + 0.3)
ax1.set_xlim(0, 1)
ax1.set_ylim(0, 1)
plt.setp(ax2.get_xticklabels(), backgroundcolor="white")
ax2.set_facecolor('grey')
ax1.set_yticks()
ax1.set_xticks()
ax2.set_yticks()
ax1.text(0.3, 0.3, '$1$', transform=ax1.transAxes, horizontalalignment='center', verticalalignment='center', color='black', backgroundcolor='white')
Desired output
I would like it so that any background colurs default to None (or similar), such that if it is unspecified, then it will be transparent, and if it is specified, then it will be respected and opaque. Hence I would like the following output (using a blue background for added clarity):
What I would like:
Currently if I use facecolor=(1,1,1,0) it correctly removes all the colours around the margins, but the main plot area is still white.
python matplotlib background
asked Nov 22 at 17:38
oliversm
3331521
I was surprised to find that when I use savefig with transparent=True this removed the facecolor which I might have set.
How can I not lose any background colours I manually set (including white)?
Compare
The GUI
Using transparent=False
plt.savefig('temp.pdf', format='pdf', transparent=False, bbox_inches='tight')
Using transparent=True
plt.savefig('temp.pdf', format='pdf', transparent=True, bbox_inches='tight')
MWE
import matplotlib as mpl
rc_fonts = {
"text.usetex": True,
'text.latex.preview': True,
"font.size": 50,
'mathtext.default': 'regular',
'axes.titlesize': 55,
"axes.labelsize": 55,
"legend.fontsize": 50,
"xtick.labelsize": 50,
"ytick.labelsize": 50,
'figure.titlesize': 55,
'figure.figsize': (10, 6.5), # 15, 9.3
'text.latex.preamble': [
r"""usepackage{lmodern,amsmath,amssymb,bm,physics,mathtools,nicefrac,letltxmacro,fixcmex}
"""],
"font.family": "serif",
"font.serif": "computer modern roman",
}
mpl.rcParams.update(rc_fonts)
import matplotlib.pylab as plt
from mpl_toolkits.axes_grid1.inset_locator import inset_axes, InsetPosition, mark_inset
from numpy import linspace, sin
x = linspace(0, 1, 100)
plt.clf()
ax1 = plt.gca()
ax2 = plt.axes([0, 0, 1, 1], label=str(2))
ip = InsetPosition(ax1, [0.08, 0.63, 0.45, 0.3])
ax2.set_axes_locator(ip)
ax1.plot(x, x)
ax1.plot(x, x + 0.3)
ax1.set_xlim(0, 1)
ax1.set_ylim(0, 1)
plt.setp(ax2.get_xticklabels(), backgroundcolor="white")
ax2.set_facecolor('grey')
ax1.set_yticks()
ax1.set_xticks()
ax2.set_yticks()
ax1.text(0.3, 0.3, '$1$', transform=ax1.transAxes, horizontalalignment='center', verticalalignment='center', color='black', backgroundcolor='white')
Desired output
I would like it so that any background colurs default to None (or similar), such that if it is unspecified, then it will be transparent, and if it is specified, then it will be respected and opaque. Hence I would like the following output (using a blue background for added clarity):
What I would like:
Currently if I use facecolor=(1,1,1,0) it correctly removes all the colours around the margins, but the main plot area is still white.
python matplotlib background
python matplotlib background
asked Nov 22 at 17:38
oliversm
3331521
asked Nov 22 at 17:38
oliversm
3331521
edited Nov 23 at 12:25
asked Nov 22 at 17:38
oliversm
3331521
asked Nov 22 at 17:38
oliversm
3331521
asked Nov 22 at 17:38
oliversm
3331521
3331521
Transparent, by definition, sets all axes backgrounds to transparent - hence the name. Why do you want to use it in the first place?
– ImportanceOfBeingErnest
Nov 22 at 19:37
A few of my figures go on posters or websites with a coloured background, and it looks nicer if the background colour matches. (Albeit I then have to be a bit more weary about filling in any background colours, if any).
– oliversm
Nov 22 at 19:47
But on a poster you would want the figure background transparent, not the axes, right? Or should the main axes be transparent as well? I have an open issue about the savefig arguments being misleading; but there is a workaround for any case. If this does not become obvious from reading the issue, I could give an answer here, if you tell what elements should be transparent or removed and which not. Also how are you preparing the poster? Via tex? Or a graphics program?
– ImportanceOfBeingErnest
Nov 22 at 19:59
@ImportanceOfBeingErnest --- I have added an example of the desired output which hopefully makes this clearer (I think I am a bit confused about the figure/axis/plot areas). Your open issue has helped me get some of the way there, but not all. The poster is prepared using LaTeX, although for websites I would just output an appropriate image format that allows transparency.
– oliversm
Nov 23 at 12:27
add a comment |
Transparent, by definition, sets all axes backgrounds to transparent - hence the name. Why do you want to use it in the first place?
– ImportanceOfBeingErnest
Nov 22 at 19:37
A few of my figures go on posters or websites with a coloured background, and it looks nicer if the background colour matches. (Albeit I then have to be a bit more weary about filling in any background colours, if any).
– oliversm
Nov 22 at 19:47
But on a poster you would want the figure background transparent, not the axes, right? Or should the main axes be transparent as well? I have an open issue about the savefig arguments being misleading; but there is a workaround for any case. If this does not become obvious from reading the issue, I could give an answer here, if you tell what elements should be transparent or removed and which not. Also how are you preparing the poster? Via tex? Or a graphics program?
– ImportanceOfBeingErnest
Nov 22 at 19:59
@ImportanceOfBeingErnest --- I have added an example of the desired output which hopefully makes this clearer (I think I am a bit confused about the figure/axis/plot areas). Your open issue has helped me get some of the way there, but not all. The poster is prepared using LaTeX, although for websites I would just output an appropriate image format that allows transparency.
– oliversm
Nov 23 at 12:27
Transparent, by definition, sets all axes backgrounds to transparent - hence the name. Why do you want to use it in the first place?
– ImportanceOfBeingErnest
Nov 22 at 19:37
Transparent, by definition, sets all axes backgrounds to transparent - hence the name. Why do you want to use it in the first place?
– ImportanceOfBeingErnest
Nov 22 at 19:37
A few of my figures go on posters or websites with a coloured background, and it looks nicer if the background colour matches. (Albeit I then have to be a bit more weary about filling in any background colours, if any).
– oliversm
Nov 22 at 19:47
A few of my figures go on posters or websites with a coloured background, and it looks nicer if the background colour matches. (Albeit I then have to be a bit more weary about filling in any background colours, if any).
– oliversm
Nov 22 at 19:47
But on a poster you would want the figure background transparent, not the axes, right? Or should the main axes be transparent as well? I have an open issue about the savefig arguments being misleading; but there is a workaround for any case. If this does not become obvious from reading the issue, I could give an answer here, if you tell what elements should be transparent or removed and which not. Also how are you preparing the poster? Via tex? Or a graphics program?
– ImportanceOfBeingErnest
Nov 22 at 19:59
But on a poster you would want the figure background transparent, not the axes, right? Or should the main axes be transparent as well? I have an open issue about the savefig arguments being misleading; but there is a workaround for any case. If this does not become obvious from reading the issue, I could give an answer here, if you tell what elements should be transparent or removed and which not. Also how are you preparing the poster? Via tex? Or a graphics program?
– ImportanceOfBeingErnest
Nov 22 at 19:59
@ImportanceOfBeingErnest --- I have added an example of the desired output which hopefully makes this clearer (I think I am a bit confused about the figure/axis/plot areas). Your open issue has helped me get some of the way there, but not all. The poster is prepared using LaTeX, although for websites I would just output an appropriate image format that allows transparency.
– oliversm
Nov 23 at 12:27
@ImportanceOfBeingErnest --- I have added an example of the desired output which hopefully makes this clearer (I think I am a bit confused about the figure/axis/plot areas). Your open issue has helped me get some of the way there, but not all. The poster is prepared using LaTeX, although for websites I would just output an appropriate image format that allows transparency.
– oliversm
Nov 23 at 12:27
add a comment |
1 Answer
1
active
oldest
votes
1
It looks like you can achive the desired output via
ax1.set_facecolor((1,1,1,0))
ax2.set_facecolor("grey")
fig.savefig(__file__+".pdf", facecolor=(1,1,1,0))
answered Nov 23 at 12:49
ImportanceOfBeingErnest
125k10127204
This doesn't achieve the desired affect. If I place these four lines at the end (and have a leadingfig = plt.gcf()after the call toplt.clf()), then I get the main figure as still having a white and non-transparent background.
– oliversm
Nov 23 at 14:31
Right, I confused myself, and you as well, sorry about that. Now the code in the answer should work.
– ImportanceOfBeingErnest
Nov 23 at 23:35
So in your opinion is this behaviour to be expected or not, and well documented or not? I realise you comment aboutframeonin your linked issue being misleading. Having to set all thesefacecolorvalues seems a little bit messy. If I followed your issue correctly this does seem like the job offrameon.
– oliversm
Nov 24 at 0:41
Yes. So I would like to change this behaviour, but I haven't put any effort into it yet. There is also a little controversity about whether to remove all the arguments tosavefig, to which I would oppose.
– ImportanceOfBeingErnest
Nov 24 at 0:57
add a comment |
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It looks like you can achive the desired output via
ax1.set_facecolor((1,1,1,0))
ax2.set_facecolor("grey")
fig.savefig(__file__+".pdf", facecolor=(1,1,1,0))
answered Nov 23 at 12:49
ImportanceOfBeingErnest
125k10127204
This doesn't achieve the desired affect. If I place these four lines at the end (and have a leadingfig = plt.gcf()after the call toplt.clf()), then I get the main figure as still having a white and non-transparent background.
– oliversm
Nov 23 at 14:31
Right, I confused myself, and you as well, sorry about that. Now the code in the answer should work.
– ImportanceOfBeingErnest
Nov 23 at 23:35
So in your opinion is this behaviour to be expected or not, and well documented or not? I realise you comment aboutframeonin your linked issue being misleading. Having to set all thesefacecolorvalues seems a little bit messy. If I followed your issue correctly this does seem like the job offrameon.
– oliversm
Nov 24 at 0:41
Yes. So I would like to change this behaviour, but I haven't put any effort into it yet. There is also a little controversity about whether to remove all the arguments tosavefig, to which I would oppose.
– ImportanceOfBeingErnest
Nov 24 at 0:57
add a comment |
1
It looks like you can achive the desired output via
ax1.set_facecolor((1,1,1,0))
ax2.set_facecolor("grey")
fig.savefig(__file__+".pdf", facecolor=(1,1,1,0))
answered Nov 23 at 12:49
ImportanceOfBeingErnest
125k10127204
This doesn't achieve the desired affect. If I place these four lines at the end (and have a leadingfig = plt.gcf()after the call toplt.clf()), then I get the main figure as still having a white and non-transparent background.
– oliversm
Nov 23 at 14:31
Right, I confused myself, and you as well, sorry about that. Now the code in the answer should work.
– ImportanceOfBeingErnest
Nov 23 at 23:35
So in your opinion is this behaviour to be expected or not, and well documented or not? I realise you comment aboutframeonin your linked issue being misleading. Having to set all thesefacecolorvalues seems a little bit messy. If I followed your issue correctly this does seem like the job offrameon.
– oliversm
Nov 24 at 0:41
Yes. So I would like to change this behaviour, but I haven't put any effort into it yet. There is also a little controversity about whether to remove all the arguments tosavefig, to which I would oppose.
– ImportanceOfBeingErnest
Nov 24 at 0:57
add a comment |
1
1
1
It looks like you can achive the desired output via
ax1.set_facecolor((1,1,1,0))
ax2.set_facecolor("grey")
fig.savefig(__file__+".pdf", facecolor=(1,1,1,0))
answered Nov 23 at 12:49
ImportanceOfBeingErnest
125k10127204
It looks like you can achive the desired output via
ax1.set_facecolor((1,1,1,0))
ax2.set_facecolor("grey")
fig.savefig(__file__+".pdf", facecolor=(1,1,1,0))
answered Nov 23 at 12:49
ImportanceOfBeingErnest
125k10127204
edited Nov 23 at 23:35
answered Nov 23 at 12:49
ImportanceOfBeingErnest
125k10127204
answered Nov 23 at 12:49
ImportanceOfBeingErnest
125k10127204
answered Nov 23 at 12:49
ImportanceOfBeingErnest
125k10127204
125k10127204
This doesn't achieve the desired affect. If I place these four lines at the end (and have a leadingfig = plt.gcf()after the call toplt.clf()), then I get the main figure as still having a white and non-transparent background.
– oliversm
Nov 23 at 14:31
Right, I confused myself, and you as well, sorry about that. Now the code in the answer should work.
– ImportanceOfBeingErnest
Nov 23 at 23:35
So in your opinion is this behaviour to be expected or not, and well documented or not? I realise you comment aboutframeonin your linked issue being misleading. Having to set all thesefacecolorvalues seems a little bit messy. If I followed your issue correctly this does seem like the job offrameon.
– oliversm
Nov 24 at 0:41
Yes. So I would like to change this behaviour, but I haven't put any effort into it yet. There is also a little controversity about whether to remove all the arguments tosavefig, to which I would oppose.
– ImportanceOfBeingErnest
Nov 24 at 0:57
add a comment |
This doesn't achieve the desired affect. If I place these four lines at the end (and have a leadingfig = plt.gcf()after the call toplt.clf()), then I get the main figure as still having a white and non-transparent background.
– oliversm
Nov 23 at 14:31
Right, I confused myself, and you as well, sorry about that. Now the code in the answer should work.
– ImportanceOfBeingErnest
Nov 23 at 23:35
So in your opinion is this behaviour to be expected or not, and well documented or not? I realise you comment aboutframeonin your linked issue being misleading. Having to set all thesefacecolorvalues seems a little bit messy. If I followed your issue correctly this does seem like the job offrameon.
– oliversm
Nov 24 at 0:41
Yes. So I would like to change this behaviour, but I haven't put any effort into it yet. There is also a little controversity about whether to remove all the arguments tosavefig, to which I would oppose.
– ImportanceOfBeingErnest
Nov 24 at 0:57
This doesn't achieve the desired affect. If I place these four lines at the end (and have a leading
fig = plt.gcf() after the call to plt.clf()), then I get the main figure as still having a white and non-transparent background.– oliversm
Nov 23 at 14:31
This doesn't achieve the desired affect. If I place these four lines at the end (and have a leading
fig = plt.gcf() after the call to plt.clf()), then I get the main figure as still having a white and non-transparent background.– oliversm
Nov 23 at 14:31
Right, I confused myself, and you as well, sorry about that. Now the code in the answer should work.
– ImportanceOfBeingErnest
Nov 23 at 23:35
Right, I confused myself, and you as well, sorry about that. Now the code in the answer should work.
– ImportanceOfBeingErnest
Nov 23 at 23:35
So in your opinion is this behaviour to be expected or not, and well documented or not? I realise you comment about
frameon in your linked issue being misleading. Having to set all these facecolor values seems a little bit messy. If I followed your issue correctly this does seem like the job of frameon.– oliversm
Nov 24 at 0:41
So in your opinion is this behaviour to be expected or not, and well documented or not? I realise you comment about
frameon in your linked issue being misleading. Having to set all these facecolor values seems a little bit messy. If I followed your issue correctly this does seem like the job of frameon.– oliversm
Nov 24 at 0:41
Yes. So I would like to change this behaviour, but I haven't put any effort into it yet. There is also a little controversity about whether to remove all the arguments to
savefig, to which I would oppose.– ImportanceOfBeingErnest
Nov 24 at 0:57
Yes. So I would like to change this behaviour, but I haven't put any effort into it yet. There is also a little controversity about whether to remove all the arguments to
savefig, to which I would oppose.– ImportanceOfBeingErnest
Nov 24 at 0:57
add a comment |
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Transparent, by definition, sets all axes backgrounds to transparent - hence the name. Why do you want to use it in the first place?
– ImportanceOfBeingErnest
Nov 22 at 19:37
A few of my figures go on posters or websites with a coloured background, and it looks nicer if the background colour matches. (Albeit I then have to be a bit more weary about filling in any background colours, if any).
– oliversm
Nov 22 at 19:47
But on a poster you would want the figure background transparent, not the axes, right? Or should the main axes be transparent as well? I have an open issue about the savefig arguments being misleading; but there is a workaround for any case. If this does not become obvious from reading the issue, I could give an answer here, if you tell what elements should be transparent or removed and which not. Also how are you preparing the poster? Via tex? Or a graphics program?
– ImportanceOfBeingErnest
Nov 22 at 19:59
@ImportanceOfBeingErnest --- I have added an example of the desired output which hopefully makes this clearer (I think I am a bit confused about the figure/axis/plot areas). Your open issue has helped me get some of the way there, but not all. The poster is prepared using LaTeX, although for websites I would just output an appropriate image format that allows transparency.
– oliversm
Nov 23 at 12:27