|
|
"""Implementation of magic functions for matplotlib/pylab support.
|
|
|
"""
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Copyright (c) 2012 The IPython Development Team.
|
|
|
#
|
|
|
# Distributed under the terms of the Modified BSD License.
|
|
|
#
|
|
|
# The full license is in the file COPYING.txt, distributed with this software.
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Imports
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
# Our own packages
|
|
|
from IPython.config.application import Application
|
|
|
from IPython.core.magic import Magics, magics_class, line_magic
|
|
|
from IPython.testing.skipdoctest import skip_doctest
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Magic implementation classes
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
@magics_class
|
|
|
class PylabMagics(Magics):
|
|
|
"""Magics related to matplotlib's pylab support"""
|
|
|
|
|
|
@skip_doctest
|
|
|
@line_magic
|
|
|
def pylab(self, parameter_s=''):
|
|
|
"""Load numpy and matplotlib to work interactively.
|
|
|
|
|
|
%pylab [GUINAME]
|
|
|
|
|
|
This function lets you activate pylab (matplotlib, numpy and
|
|
|
interactive support) at any point during an IPython session.
|
|
|
|
|
|
It will import at the top level numpy as np, pyplot as plt, matplotlib,
|
|
|
pylab and mlab, as well as all names from numpy and pylab.
|
|
|
|
|
|
If you are using the inline matplotlib backend for embedded figures,
|
|
|
you can adjust its behavior via the %config magic::
|
|
|
|
|
|
# enable SVG figures, necessary for SVG+XHTML export in the qtconsole
|
|
|
In [1]: %config InlineBackend.figure_format = 'svg'
|
|
|
|
|
|
# change the behavior of closing all figures at the end of each
|
|
|
# execution (cell), or allowing reuse of active figures across
|
|
|
# cells:
|
|
|
In [2]: %config InlineBackend.close_figures = False
|
|
|
|
|
|
Parameters
|
|
|
----------
|
|
|
guiname : optional
|
|
|
One of the valid arguments to the %gui magic ('qt', 'wx', 'gtk',
|
|
|
'osx' or 'tk'). If given, the corresponding Matplotlib backend is
|
|
|
used, otherwise matplotlib's default (which you can override in your
|
|
|
matplotlib config file) is used.
|
|
|
|
|
|
Examples
|
|
|
--------
|
|
|
In this case, where the MPL default is TkAgg::
|
|
|
|
|
|
In [2]: %pylab
|
|
|
|
|
|
Welcome to pylab, a matplotlib-based Python environment.
|
|
|
Backend in use: TkAgg
|
|
|
For more information, type 'help(pylab)'.
|
|
|
|
|
|
But you can explicitly request a different backend::
|
|
|
|
|
|
In [3]: %pylab qt
|
|
|
|
|
|
Welcome to pylab, a matplotlib-based Python environment.
|
|
|
Backend in use: Qt4Agg
|
|
|
For more information, type 'help(pylab)'.
|
|
|
"""
|
|
|
|
|
|
if Application.initialized():
|
|
|
app = Application.instance()
|
|
|
try:
|
|
|
import_all_status = app.pylab_import_all
|
|
|
except AttributeError:
|
|
|
import_all_status = True
|
|
|
else:
|
|
|
import_all_status = True
|
|
|
|
|
|
self.shell.enable_pylab(parameter_s, import_all=import_all_status)
|
|
|
|