def test_cam_to_tel():
from ctapipe.coordinates import CameraFrame, TelescopeFrame
# Coordinates in any fram can be given as a numpy array of the xyz positions
# e.g. in this case the position on pixels in the camera
pix_x = [1] * u.m
pix_y = [1] * u.m
focal_length = 15 * u.m
# first define the camera frame
camera_coord = CameraFrame(pix_x, pix_y, focal_length=focal_length)
# then use transform to function to convert to a new system
# making sure to give the required values for the conversion
# (these are not checked yet)
telescope_coord = camera_coord.transform_to(TelescopeFrame())
assert telescope_coord.x[0] == (1 / 15) * u.rad
# check rotation
camera_coord = CameraFrame(pix_x, pix_y, focal_length=focal_length)
telescope_coord_rot = camera_coord.transform_to(TelescopeFrame())
assert telescope_coord_rot.y[0] - (1 / 15) * u.rad < 1e-6 * u.rad
# The Transform back
camera_coord2 = telescope_coord.transform_to(
CameraFrame(focal_length=focal_length))
# Check separation
assert camera_coord.separation_3d(camera_coord2)[0] == 0 * u.m
def test_cam_to_tel():
from ctapipe.coordinates import CameraFrame, TelescopeFrame
# Coordinates in any fram can be given as a numpy array of the xyz positions
# e.g. in this case the position on pixels in the camera
pix_x = [1] * u.m
pix_y = [1] * u.m
focal_length = 15 * u.m
# first define the camera frame
camera_coord = CameraFrame(pix_x, pix_y, focal_length=focal_length)
# then use transform to function to convert to a new system
# making sure to give the required values for the conversion
# (these are not checked yet)
telescope_coord = camera_coord.transform_to(TelescopeFrame())
assert telescope_coord.x[0] == (1 / 15) * u.rad
# check rotation
camera_coord = CameraFrame(pix_x, pix_y, focal_length=focal_length)
telescope_coord_rot = camera_coord.transform_to(TelescopeFrame())
assert telescope_coord_rot.y[0] - (1 / 15) * u.rad < 1e-6 * u.rad
# The Transform back
camera_coord2 = telescope_coord.transform_to(
CameraFrame(focal_length=focal_length)
)
# Check separation
assert camera_coord.separation_3d(camera_coord2)[0] == 0 * u.m
def cam_to_tel():
# Coordinates in any fram can be given as a numpy array of the xyz positions
# e.g. in this case the position on pixels in the camera
pix = [np.ones(2048),np.ones(2048),np.zeros(2048)] * u.m
# first define the camera frame
camera_coord = CameraFrame(pix,focal_length=15*u.m,rotation=0*u.deg)
# then use transform to function to convert to a new system
# making sure to give the required values for the conversion (these are not checked yet)
telescope_coord = camera_coord.transform_to(TelescopeFrame())
# Print coordinates in the new frame
print("Telescope Coordinate",telescope_coord)
# Transforming back is then easy
camera_coord2 = telescope_coord.transform_to(CameraFrame(focal_length=15*u.m,rotation=0*u.deg))
# We can easily check the distance between 2 coordinates in the same frame
# In this case they should be the same
print("Separation",np.sum(camera_coord.separation_3d(camera_coord2)))
def cam_to_tel():
# Coordinates in any fram can be given as a numpy array of the xyz positions
# e.g. in this case the position on pixels in the camera
pix = [np.ones(2048), np.ones(2048), np.zeros(2048)] * u.m
# first define the camera frame
camera_coord = CameraFrame(pix)
# then use transform to function to convert to a new system
# making sure to give the required values for the conversion (these are not checked yet)
telescope_coord = camera_coord.transform_to(
TelescopeFrame(focal_length=15 * u.m, rotation=0 * u.deg))
# Print cordinates in the new frame
print("Telescope Coordinate", telescope_coord)
# Transforming back is then easy
camera_coord2 = telescope_coord.transform_to(CameraFrame())
# We can easily check the distance between 2 coordinates in the same frame
# In this case they should be the same
print("Separation", np.sum(camera_coord.separation_3d(camera_coord2)))
