def __init__(self,
ax: Axes,
labels: iter,
active: int = 0,
activecolor: str = 'blue',
size: int = 49,
orientation: str = "vertical",
**kwargs):
"""
Add radio buttons to an `~.axes.Axes`.
Parameters
----------
ax : `~matplotlib.axes.Axes`
The axes to add the buttons to.
labels : list of str
The button labels.
active : int
The index of the initially selected button.
activecolor : color
The color of the selected button.
size : float
Size of the radio buttons
orientation : str
The orientation of the buttons: 'vertical' (default), or 'horizontal'.
Further parameters are passed on to `Legend`.
"""
AxesWidget.__init__(self, ax)
self.activecolor = activecolor
axcolor = ax.get_facecolor()
self.value_selected = None
ax.set_xticks([])
ax.set_yticks([])
ax.set_navigate(False)
circles = []
for i, label in enumerate(labels):
if i == active:
self.value_selected = label
facecolor = activecolor
else:
facecolor = axcolor
p = ax.scatter([], [],
s=size,
marker="o",
edgecolor='black',
facecolor=facecolor)
circles.append(p)
if orientation == "horizontal":
kwargs.update(ncol=len(labels), mode="expand")
kwargs.setdefault("frameon", False)
self.box = ax.legend(circles, labels, loc="center", **kwargs)
self.labels = self.box.texts
self.circles = self.box.legendHandles
for c in self.circles:
c.set_picker(5)
self.cnt = 0
self.observers = {}
self.connect_event('pick_event', self._clicked)
