Polyspiral animation

[Mr. Kibernetik]

Code: Select all

width,height = #.scrsize()
#.angle(#.degrees)
#.scroff()
incr = 0
>
  incr = (incr+0.05)%360
  x = width/2
  y = height/2
  length = 5
  angle = incr
  #.scrclear()
  #.drawline(x,y,x,y)
  > i, 1..150
    x += length*#.cos(angle)
    y += length*#.sin(angle)
    #.drawcolor(#.hsv2rgb(angle,1,1):3)
    #.drawline(x,y)
    length += 3
    angle = (angle+incr)%360
  <
  #.scr()
<

polyspiral_screen.png (156.95 KiB) Viewed 1999 times

[rbytes]

This runs without errors, but produces only a single line on my graphics screen.

[Mr. Kibernetik]

Please check this program again after SPL update.
This can be caused by an outdated version.

[rbytes]

Thanks. I will watch for the update.

Got the update today!

[rbytes]

I am having a lot of fun with Polyspiral animation, and learning a lot by changing parameters one at a time.
By setting incr to specific values rather than incrementing it continuously, I can generate beautiful static patterns. Here is the result of setting incr to 121. I added a few lines of code to print the angle and incr values at the top left. I comment them out when running the animation since they slow it down a bit.

Spiral 3.PNG (1.02 MiB) Viewed 1978 times