31 lines
920 B
Python
31 lines
920 B
Python
|
import telescope_driver
|
||
|
|
|
||
|
|
|
||
|
|
class TelescopeModel(object):
|
||
|
|
|
||
|
|
# Minimum safe elevation angle (see handbook).
|
||
|
|
MIN_ANGLE = 0.0
|
||
|
|
|
||
|
|
# Maximum safe elevation angle (see handbook).
|
||
|
|
MAX_ANGLE = 80.0
|
||
|
|
|
||
|
|
def __init__(self, address):
|
||
|
|
self.address = address
|
||
|
|
# Connect to telescope
|
||
|
|
self.connection = telescope_driver.connect(address)
|
||
|
|
# Get initial state of telescope.
|
||
|
|
self.current_angle = telescope_driver.get_angle(self.connection)
|
||
|
|
|
||
|
|
def set_elevation_angle(self, angle):
|
||
|
|
""" Set the elevation angle of the telescope (in rad).
|
||
|
|
|
||
|
|
If the angle is outside the range allowed by the manufacturer,
|
||
|
|
raise a ValueError.
|
||
|
|
"""
|
||
|
|
|
||
|
|
if angle < self.MIN_ANGLE or angle > self.MAX_ANGLE:
|
||
|
|
raise ValueError('Unsafe elevation angle: {}'.format(angle))
|
||
|
|
|
||
|
|
telescope_driver.set_angle(self.connection, angle)
|
||
|
|
self.current_angle = angle
|