gen-puls*

[AM]

a very simple, but useful little function...

 

(defun gen-puls* (n tuplet period &key (stacc nil))
  (gen-length (loop repeat n
                with period = (if (equal stacc t)
                                (list 1  (neg! (1- period)))
                                period)
                collect period)
              tuplet))


;;; option: stacc or ord

(gen-puls* 10 1/32 13)
=> (13/32 13/32 13/32 13/32 13/32 13/32 13/32 13/32 13/32 13/32) 

(gen-puls* 10 1/32 13 :stacc t)
=> (1/32 -3/8 1/32 -3/8 1/32 -3/8 1/32 -3/8 1/32 -3/8 1/32 -3/8 1/32 -3/8 1/32 -3/8 1/32 -3/8 1/32 -3/8)

(gen-puls* 10 1/28 9)
=> (9/28 9/28 9/28 9/28 9/28 9/28 9/28 9/28 9/28 9/28)

(gen-puls* 10 1/28 9 :stacc t)
=> (1/28 -3/14 1/28 -3/14 1/28 -3/14 1/28 -3/14 1/28 -3/14 1/28 -3/14 1/28 -3/14 1/28 -3/14 1/28 -3/14 1/28 -3/14)

(gen-puls* 10 1/20 13 :stacc t)
=> (1/20 -3/5 1/20 -3/5 1/20 -3/5 1/20 -3/5 1/20 -3/5 1/20 -3/5 1/20 -3/5 1/20 -3/5 1/20 -3/5 1/20 -3/5)

 

Edited May 4, 2018 by AM
edited function