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Differences From Artifact [48b3b2908c]:

To Artifact [d31bf89ee1]:


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    (arithmetic-shift r 16)
    (arithmetic-shift g 8)
    b))

;; Obsolete function
;;
(define (vg:generate-color)
  (vg:rgb->number (random 255)
                  (random 255)
                  (random 255)))
  (vg:rgb->number (pseudo-random-integer 255)
                  (pseudo-random-integer 255)
                  (pseudo-random-integer 255)))

;; Need to return a string of random iup-color for graph
;;
(define (vg:generate-color-rgb)
  (conc (number->string (random 255)) " "
        (number->string (random 255)) " "
        (number->string (random 255))))
  (conc (number->string (pseudo-random-integer 255)) " "
        (number->string (pseudo-random-integer 255)) " "
        (number->string (pseudo-random-integer 255))))

(define (vg:iup-color->number iup-color)
  (apply vg:rgb->number (map string->number (string-split iup-color))))

;;======================================================================
;; graphing
;;======================================================================