"""
2D Circle Widget
=================

A draggable, resizable circle overlay on a 2-D image panel.
Add it with :meth:`~anyplotlib.plot2d.Plot2D.add_widget` using
``kind="circle"``.
"""
import numpy as np
import anyplotlib as apl

rng  = np.random.default_rng(0)
data = rng.standard_normal((128, 128)).cumsum(0).cumsum(1)
data = (data - data.min()) / (data.max() - data.min())
xy   = np.linspace(0, 10, 128)

fig, ax = apl.subplots(1, 1, figsize=(460, 460))
v = ax.imshow(data, axes=[xy, xy], units="nm")

v.add_widget("circle", color="#e040fb", cx=64, cy=64, r=20)

fig