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// Demonstrate the use of Line Scan: one or multiple positioners move together linearly.
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//Execute the scan: 100 steps, a1 from 0 to 40
r1 = lscan(ao1, [ai1,ai2,wf1], 0, 40, 100, 0.01)                    

//Steps of size 1.0, a1 from 0 to 40
r2 = lscan(ao1, [ai1,ai2,wf1], 0, 40, 1.0, 0.01)                   

//2 positioners moving together in 10 steps. Also sampling an image:
r3 = lscan([ao1,ao2], [ai1,ai2,wf1,im1],  [0, 0], [40, 100], 4, 0.01)