def configure_inline_support(shell, backend):
"""Configure an IPython shell object for matplotlib use.
Parameters
----------
shell : InteractiveShell instance
backend : matplotlib backend
"""
# If using our svg payload backend, register the post-execution
# function that will pick up the results for display. This can only be
# done with access to the real shell object.
# Note: if we can't load the inline backend, then there's no point
# continuing (such as in terminal-only shells in environments without
# zeromq available).
try:
from IPython.kernel.zmq.pylab.backend_inline import InlineBackend
except ImportError:
return
from matplotlib import pyplot
cfg = InlineBackend.instance(parent=shell)
cfg.shell = shell
if cfg not in shell.configurables:
shell.configurables.append(cfg)
if backend == backends['inline']:
from IPython.kernel.zmq.pylab.backend_inline import flush_figures
shell.events.register('post_execute', flush_figures)
# Save rcParams that will be overwrittern
shell._saved_rcParams = dict()
for k in cfg.rc:
shell._saved_rcParams[k] = pyplot.rcParams[k]
# load inline_rc
pyplot.rcParams.update(cfg.rc)
else:
from IPython.kernel.zmq.pylab.backend_inline import flush_figures
try:
shell.events.unregister('post_execute', flush_figures)
except ValueError:
pass
if hasattr(shell, '_saved_rcParams'):
pyplot.rcParams.update(shell._saved_rcParams)
del shell._saved_rcParams
# Setup the default figure format
select_figure_formats(shell, cfg.figure_formats, **cfg.print_figure_kwargs)
def configure_inline_support(shell, backend):
"""Configure an IPython shell object for matplotlib use.
Parameters
----------
shell : InteractiveShell instance
backend : matplotlib backend
"""
# If using our svg payload backend, register the post-execution
# function that will pick up the results for display. This can only be
# done with access to the real shell object.
# Note: if we can't load the inline backend, then there's no point
# continuing (such as in terminal-only shells in environments without
# zeromq available).
try:
from IPython.kernel.zmq.pylab.backend_inline import InlineBackend
except ImportError:
return
from matplotlib import pyplot
cfg = InlineBackend.instance(parent=shell)
cfg.shell = shell
if cfg not in shell.configurables:
shell.configurables.append(cfg)
if backend == backends['inline']:
from IPython.kernel.zmq.pylab.backend_inline import flush_figures
shell.events.register('post_execute', flush_figures)
# Save rcParams that will be overwrittern
shell._saved_rcParams = dict()
for k in cfg.rc:
shell._saved_rcParams[k] = pyplot.rcParams[k]
# load inline_rc
pyplot.rcParams.update(cfg.rc)
else:
from IPython.kernel.zmq.pylab.backend_inline import flush_figures
try:
shell.events.unregister('post_execute', flush_figures)
except ValueError:
pass
if hasattr(shell, '_saved_rcParams'):
pyplot.rcParams.update(shell._saved_rcParams)
del shell._saved_rcParams
# Setup the default figure format
select_figure_formats(shell, cfg.figure_formats, **cfg.print_figure_kwargs)
def set_matplotlib_close(close):
"""Set whether the inline backend closes all figures automatically or not.
By default, the inline backend used in the IPython Notebook will close all
matplotlib figures automatically after each cell is run. This means that
plots in different cells won't interfere. Sometimes, you may want to make
a plot in one cell and then refine it in later cells. This can be accomplished
by::
In [1]: set_matplotlib_close(False)
To set this in your config files use the following::
c.InlineBackend.close_figures = False
Parameters
----------
close : bool
Should all matplotlib figures be automatically closed after each cell is
run?
"""
from IPython.kernel.zmq.pylab.backend_inline import InlineBackend
ilbe = InlineBackend.instance()
ilbe.close_figures = close
def set_matplotlib_close(close):
"""Set whether the inline backend closes all figures automatically or not.
By default, the inline backend used in the IPython Notebook will close all
matplotlib figures automatically after each cell is run. This means that
plots in different cells won't interfere. Sometimes, you may want to make
a plot in one cell and then refine it in later cells. This can be accomplished
by::
In [1]: set_matplotlib_close(False)
To set this in your config files use the following::
c.InlineBackend.close_figures = False
Parameters
----------
close : bool
Should all matplotlib figures be automatically closed after each cell is
run?
"""
from IPython.kernel.zmq.pylab.backend_inline import InlineBackend
ilbe = InlineBackend.instance()
ilbe.close_figures = close
def configure_inline_support(shell, backend, user_ns=None):
"""Configure an IPython shell object for matplotlib use.
Parameters
----------
shell : InteractiveShell instance
backend : matplotlib backend
user_ns : dict
A namespace where all configured variables will be placed. If not given,
the `user_ns` attribute of the shell object is used.
"""
# If using our svg payload backend, register the post-execution
# function that will pick up the results for display. This can only be
# done with access to the real shell object.
# Note: if we can't load the inline backend, then there's no point
# continuing (such as in terminal-only shells in environments without
# zeromq available).
try:
from IPython.kernel.zmq.pylab.backend_inline import InlineBackend
except ImportError:
return
from matplotlib import pyplot
user_ns = shell.user_ns if user_ns is None else user_ns
cfg = InlineBackend.instance(config=shell.config)
cfg.shell = shell
if cfg not in shell.configurables:
shell.configurables.append(cfg)
if backend == backends['inline']:
from IPython.kernel.zmq.pylab.backend_inline import flush_figures
shell.register_post_execute(flush_figures)
# Save rcParams that will be overwrittern
shell._saved_rcParams = dict()
for k in cfg.rc:
shell._saved_rcParams[k] = pyplot.rcParams[k]
# load inline_rc
pyplot.rcParams.update(cfg.rc)
# Add 'figsize' to pyplot and to the user's namespace
user_ns['figsize'] = pyplot.figsize = figsize
else:
from IPython.kernel.zmq.pylab.backend_inline import flush_figures
if flush_figures in shell._post_execute:
shell._post_execute.pop(flush_figures)
if hasattr(shell, '_saved_rcParams'):
pyplot.rcParams.update(shell._saved_rcParams)
del shell._saved_rcParams
# Setup the default figure format
fmt = cfg.figure_format
select_figure_format(shell, fmt)
# The old pastefig function has been replaced by display
from IPython.core.display import display
# Add display and getfigs to the user's namespace
user_ns['display'] = display
user_ns['getfigs'] = getfigs
def base16_mplrc(self,args):
#parse the magick arguments
args = parse_argstring(self.base16_mplrc,args)
shade = args.shade
theme = args.theme
#detect the base16 ipython notebook theme, setup the matplotlib rc
css_theme = None
css_shade = None
custom_css_fname = self.shell.profile_dir.location+'/static/custom/custom.css'
if os.path.exists(custom_css_fname):
with open(custom_css_fname) as css_file:
for line in css_file:
if(re.match('^\s*Name: ',line)):
css_theme = line.split()[2].lower()
css_shade = line.split()[-1].lower()
#fall back on sensible defaults
if theme is None:
theme = css_theme
if shade is None:
shade = css_shade
if theme is None:
print('''
Could not detect base-16 ipython notebook theme. Download base16 theme notebook theme
from https://github.com/nsonnad/base16-ipython-notebook . Using \'default\' theme.''')
theme='default'
if shade is None:
print('''
Could not detect base-16 ipython notebook theme shade. Download base16 theme notebook themes
from https://github.com/nsonnad/base16-ipython-notebook . Using \'default\' theme.''')
shade = 'light'
avail_themes = [os.path.split(f)[-1].split('.')[0] for f in glob.glob(self.shell.ipython_dir+'/extensions/base16-mplrc-themes/*.json')]
#validate input
if shade not in ['dark','light']:
print("shade must be either dark or light, defaulting to light")
shade = 'light'
if theme not in avail_themes:
print("theme must be present in base16-mplrc-themes dir, defaulting to 'default'")
print("Available themes:")
for t in avail_themes:
print("\t{}".format(t))
theme = 'default'
print("Setting plotting theme to {}-{}. Palette available in b16_colors".format(theme,shade))
theme_colors = json.load(open(self.shell.ipython_dir+'/extensions/base16-mplrc-themes/'+theme+'.json'))
#snag the matplotlibrc configuration from the ipython config
from IPython.kernel.zmq.pylab.backend_inline import InlineBackend
cfg = InlineBackend.instance(parent=self.shell)
cfg.shell=self.shell
if cfg not in self.shell.configurables:
self.shell.configurables.append(cfg)
if shade=="dark":
cfg.rc = {'figure.facecolor':theme_colors['base00'],
'savefig.facecolor':theme_colors['base00'],
'text.color':theme_colors['base07'],
'axes.color_cycle':[theme_colors['base{:02X}'.format(i)] for i in [13,8,11,9,12,14,10,15]],
'axes.facecolor': theme_colors['base01'],
'axes.edgecolor': theme_colors['base01'],
'axes.labelcolor': theme_colors['base07'],
'lines.color': theme_colors['base09'],
'lines.markeredgewidth': 0,
'patch.facecolor': theme_colors['base09'],
'patch.edgecolor': theme_colors['base02'],
'xtick.color': theme_colors['base07'],
'ytick.color': theme_colors['base07'],
'grid.color': theme_colors['base02']}
elif shade=="light":
cfg.rc = {'figure.facecolor':theme_colors['base07'],
'savefig.facecolor':theme_colors['base07'],
'text.color':theme_colors['base00'],
'axes.color_cycle':[theme_colors['base{:02X}'.format(i)] for i in [13,8,11,9,12,14,10,15]],
'axes.facecolor': theme_colors['base07'],
'axes.edgecolor': theme_colors['base00'],
'axes.labelcolor': theme_colors['base00'],
'lines.color': theme_colors['base0D'],
'lines.markeredgewidth': 0,
'patch.facecolor': theme_colors['base0D'],
'patch.edgecolor': theme_colors['base02'],
'xtick.color': theme_colors['base00'],
'ytick.color': theme_colors['base00'],
'grid.color': theme_colors['base06']}
#If pyplot is already using the InlineBackend, this will force an update to the rcParams
from matplotlib import pyplot, cm
from matplotlib.colors import ColorConverter, ListedColormap
import numpy as np
conv = ColorConverter()
if pyplot.rcParams['backend'] == 'module://IPython.kernel.zmq.pylab.backend_inline':
#push the color pallete into scope for the user
full=['red','orange','yellow','green','cyan','blue','magenta','brown']
abbr=['r','o','y','g','c','b','m','n']
#create a color palette class
class Palette(object): pass
b16_colors=Palette()
for f,a,i in zip(full,abbr,range(8,16)):
setattr(b16_colors,f,conv.to_rgb(theme_colors['base{:02X}'.format(i)]))
setattr(b16_colors,a,conv.to_rgb(theme_colors['base{:02X}'.format(i)]))
setattr(b16_colors,'white',conv.to_rgb(theme_colors['base07']))
setattr(b16_colors,'w',conv.to_rgb(theme_colors['base07']))
setattr(b16_colors,'black',conv.to_rgb(theme_colors['base00']))
setattr(b16_colors,'k',conv.to_rgb(theme_colors['base00']))
#----------------- Color maps ---------------------#
def make_gradient(cols):
N=255
M=int(np.ceil(N/len(cols)))
reds = np.empty((0),dtype=np.float)
blues = np.empty((0),dtype=np.float)
greens = np.empty((0),dtype=np.float)
for c0,c1 in zip(cols[:-1],cols[1:]):
reds = np.concatenate((reds,np.linspace(c0[0],c1[0],M-1)))
greens = np.concatenate((greens,np.linspace(c0[1],c1[1],M-1)))
blues = np.concatenate((blues,np.linspace(c0[2],c1[2],M-1)))
return np.array((reds,greens,blues)).transpose()
#Make a "jet" colormap
cols =[b16_colors.b,
b16_colors.c,
b16_colors.g,
b16_colors.y,
b16_colors.o,
b16_colors.r]
b16_colors.jet = ListedColormap(make_gradient(cols),name='b16_jet')
cm.register_cmap('b16_jet',b16_colors.jet)
#Make a "grayscale" colormap
cols = [conv.to_rgb(theme_colors['base{:02X}'.format(i)]) for i in range(8)]
b16_colors.gray = ListedColormap(make_gradient(cols),name='b16_gray')
cm.register_cmap('b16_gray',b16_colors.gray)
#Make a "blues" colormap
cols = [b16_colors.w,b16_colors.c,b16_colors.b]
b16_colors.blues = ListedColormap(make_gradient(cols),name='b16_blues')
cm.register_cmap('b16_blues',b16_colors.blues)
#Make a "greens" colormap
cols = [b16_colors.w,b16_colors.c,b16_colors.g]
b16_colors.greens = ListedColormap(make_gradient(cols),name='b16_greens')
cm.register_cmap('b16_greens',b16_colors.greens)
#Make a "oranges" colormap
cols = [b16_colors.w,b16_colors.y,b16_colors.o]
b16_colors.oranges = ListedColormap(make_gradient(cols),name='b16_oranges')
cm.register_cmap('b16_oranges',b16_colors.oranges)
#Make a "reds" colormap
cols = [b16_colors.w,b16_colors.y,b16_colors.o,b16_colors.r]
b16_colors.reds = ListedColormap(make_gradient(cols),name='b16_reds')
cm.register_cmap('b16_reds',b16_colors.reds)
#Make a "flame" colormap
cols = [conv.to_rgb(theme_colors['base{:02X}'.format(i)]) for i in range(0,3,2)]+\
[b16_colors.y,b16_colors.o,b16_colors.r]
b16_colors.flame = ListedColormap(make_gradient(cols),name='b16_flame')
cm.register_cmap('b16_flame',b16_colors.flame)
#Make a "brbg" colormap
cols = [b16_colors.n,b16_colors.w,b16_colors.b,b16_colors.g]
b16_colors.brbg = ListedColormap(make_gradient(cols),name='b16_brbg')
cm.register_cmap('b16_brbg',b16_colors.brbg)
self.shell.push({"b16_colors":b16_colors})
cfg.rc.update({'image.cmap':'b16_flame'})
pyplot.rcParams.update(cfg.rc)