def __init__(self, obj, name=None):
r"""
TESTS::
sage: from sage_explorer import MPLWidget
sage: w = MPLWidget(sin)
sage: w.name
'sin'
sage: w = MPLWidget(list(cremona_curves(srange(35)))[0])
sage: w.name
'Elliptic Curve defined by y^2 + y = x^3 - x^2 - 10*x - 20 over Rational Field'
sage: x, y = var('x y')
sage: g(x,y) = x**2 + y**2
sage: w = MPLWidget(g)
sage: w.name
'(x, y) |--> x^2 + y^2'
"""
plt = guess_plot(obj)
fig = plt.matplotlib()
fig.set_label(" ")
apply_css(".jupyter-matplotlib-figure > .widget-label { height: 0 }")
Canvas.__init__(self, fig)
self.value = obj
if not name:
name = repr(obj)
self.name = name
manager = FigureManager(self, 1)
def closer(event):
Gcf.destroy(num)
self.mpl_connect('close_event', closer)
def _get_widget(self, fig):
import matplotlib
old_backend = getattr(matplotlib.backends, 'backend', 'agg')
from ipympl.backend_nbagg import FigureManager, Canvas, is_interactive
from matplotlib._pylab_helpers import Gcf
matplotlib.use(old_backend)
def closer(event):
Gcf.destroy(0)
canvas = Canvas(fig)
fig.patch.set_alpha(0)
manager = FigureManager(canvas, 0)
if is_interactive():
fig.canvas.draw_idle()
canvas.mpl_connect('close_event', closer)
return manager
def __init__(self, session, parent=None, wcs=None, state=None):
self.figure = Figure()
self.canvas = Canvas(self.figure)
self.canvas.manager = FigureManager(self.canvas, 0)
self.figure, self.axes = init_mpl(self.figure, wcs=wcs)
# FIXME: The following is required for now for the tools to work
self.central_widget = self.figure
self._axes = self.axes
super(MatplotlibJupyterViewer, self).__init__(session, state=state)
MatplotlibViewerMixin.setup_callbacks(self)
self.css_widget = HTML(REMOVE_TITLE_CSS)
self.create_layout()