Add demos

2025-06-26 13:00:45 -04:00 · 2025-06-26 13:00:45 -04:00 · bf2d2b0774
parent 02902dac51
commit bf2d2b0774
3 changed files with 32 additions and 0 deletions
--- a/chris_ellipse_exploration/demo.gif
+++ b/chris_ellipse_exploration/demo.gif
--- a/chris_ellipse_exploration/demo.html
+++ b/chris_ellipse_exploration/demo.html
@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<html>
+    <body style="background-image: url(demo.gif); background-repeat: cover;">
+    </body>
+</html>
+
--- a/chris_ellipse_exploration/demo.py
+++ b/chris_ellipse_exploration/demo.py
@ -0,0 +1,26 @@
+from ellipse import ellipse
+from superturtle.animation import animate
+from superturtle.easing import easeInOutCubic
+from turtle import color, fillcolor, begin_fill, end_fill
+
+n_frames = 128
+
+def is_even(n):
+    return n % 2 == 0
+
+def set_colors(n):
+    "Sets the color and fill color to white when n is even, otherwise black."
+    if is_even(n):
+        color('white')
+        fillcolor('white')
+    else:
+        color('black')
+        fillcolor('black')
+
+for frame in animate(n_frames, loop=True, gif_filename="demo.gif"):
+    for r in reversed(range(2, 30)):
+        set_colors(r)
+        with frame.rotate(0, 360, r, n_frames - r, easing=easeInOutCubic):
+            begin_fill()
+            ellipse(5 * r, 10 * r, 128)
+            end_fill()