I am drawing some circles onto an image using the following:
import matplotlib.pyplot as plt
import numpy as np
import matplotlib.patches as mpatches
image = np.zeros((20,20))
x_coords = [3,12]
y_coords = [3,12]
fig, ax = plt.subplots()
ax.imshow(image)
for a,b in zip(x_coords,y_coords):
circle = plt.Circle((a, b), 2, color="yellow", fill=False, linewidth=2)
ax.add_artist(circle)
I can then add a legend onto this using one of the answers to this question:
patches = [mpatches.Patch(color="yellow", label="Test")]
plt.legend(handles=patches, bbox_to_anchor=(1.05, 1), loc=2)
Which produces this figure:
How do I change the legend handles from a rectangle to a circle (similar to what is drawn onto the image)?
I have tried using
patches = [mpatches.Circle((0,0), 2, color="yellow", label="Test")]
plt.legend(handles=patches, bbox_to_anchor=(1.05, 1), loc=2)
which still produces a rectangle in the legend. I have also tried
plt.legend(handles=[circle], labels=["Test"], bbox_to_anchor=(1.05, 1), loc=2)
Which still produces a rectangle, but with no fill. The desired result should be to have a circle, the same colour and fill as what is drawn on the image, as the legend marker.
I am using Python 3.4 and matplotlib 2.1.0
