Thursday, 8 November 2012

Finished Project 1

Project 1 was pretty simple.
I can put the functions alone to check the result shown.
This way is a good way to check because (check-expect -) just gives me if it is passed or not.

"
(define (set-up-hand im deg)
  (overlay/align
   "middle" "top"
   (rotate (* -1 deg) im)
   (circle
    (image-height (rotate (* -1 deg) im))
    "solid" (make-color 255 255 255 0))))


(set-up-hand apple 90)"

I finished all my stuffs, but the second-hand rotates counter-clock wise.
As I asked my friend, I became to know I should put negative sign in front of rotate degree to make it clockwise

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