def get_pixel_width(self, tel_id):
"""Guesstimate fov radius for telescope with id `tel_id`"""
# memoize fov calculation
if tel_id not in self.pixel_widths:
x, y = self.get_pixel_coords(tel_id)
self.pixel_widths[tel_id] = CameraGeometry.guess_pixel_width(x, y)
return self.pixel_widths[tel_id]
def test_guess_width():
x = u.Quantity([0, 1, 2], u.cm)
y = u.Quantity([0, 0, 0], u.cm)
assert u.isclose(CameraGeometry.guess_pixel_width(x, y), 1 * u.cm)
