ring_containment

ctapipe.image.ring_containment(radius, center_x, center_y, camera_radius)

Estimate angular containment of a ring inside the camera (camera center is (0,0))

Improve: include the case of an arbitrary center for the camera

See https://stackoverflow.com/questions/3349125/circle-circle-intersection-points

Parameters

radius: float or quantity

radius of the muon ring

center_x: float or quantity

x coordinate of the center of the muon ring

center_y: float or quantity

y coordinate of the center of the muon ring

camera_radius: float or quantity

radius of the camera

Returns

ringcontainment: float

the ratio of ring inside the camera