Color documentation

[Heissberg]

Where can I find detailed documentation on facecolor argument of Radar.draw_circle method ?

[andrewRowlinson]

draw_circles uses a PatchCollection:

https://matplotlib.org/stable/api/collections_api.html#matplotlib.collections.PatchCollection

The kwargs are forwarded to Collection: https://matplotlib.org/stable/api/collections_api.html#matplotlib.collections.Collection

Collection allows you to use the plurals: facecolors, edgecolors, linewidths and linestyles. So you could set each circle to have different styles.

If you use the singular versions, e.g. facecolor as kwargs then they are forwarded to Wedge. In that case all of the circles will have the same style: https://matplotlib.org/stable/api/_as_gen/matplotlib.patches.Wedge.html

For specifying colors see the following Matplotlib guide: https://matplotlib.org/stable/users/explain/colors/colors.html#sphx-glr-users-explain-colors-colors-py

If you do not want any color you can use 'None' in quotes as the color.