Patch #1513695: New turtle module, with demos.

1 files changed, 49 insertions, 0 deletions

diff --git a/Demo/turtle/tdemo_yinyang.py b/Demo/turtle/tdemo_yinyang.py
new file mode 100644
index 0000000..47b8b2f
--- /dev/null
+++ b/Demo/turtle/tdemo_yinyang.py
@@ -0,0 +1,49 @@
+#!/usr/bin/python
+"""       turtle-example-suite:
+
+            tdemo_yinyang.py
+
+Another drawing suitable as a beginner's
+programming example.
+
+The small circles are drawn by the circle
+command.
+
+"""
+
+from turtle import *
+
+def yin(radius, color1, color2):
+    width(3)
+    color("black")
+    fill(True)
+    circle(radius/2., 180)
+    circle(radius, 180)
+    left(180)
+    circle(-radius/2., 180)
+    color(color1)
+    fill(True)
+    color(color2)
+    left(90)
+    up()
+    forward(radius*0.375)
+    right(90)
+    down()
+    circle(radius*0.125)
+    left(90)
+    fill(False)
+    up()
+    backward(radius*0.375)
+    down()
+    left(90)
+
+def main():
+    reset()
+    yin(200, "white", "black")
+    yin(200, "black", "white")
+    ht()
+    return "Done!"
+
+if __name__ == '__main__':
+    main()
+    mainloop()