Merge pull request #9 from dastels/master

Example additions and edits

Author: ladyada

adafruit_turtle.py

@@ -138,7 +138,7 @@ class turtle(object):
 
     def __init__(self, display=board.DISPLAY):
         self._logger = logging.getLogger("Turtle")
-        self._logger.setLevel(logging.DEBUG)
+        self._logger.setLevel(logging.INFO)
         self._display = display
         self._w = self._display.width
         self._h = self._display.height

examples/turtle_circle.py

@@ -3,13 +3,18 @@
 
 turtle = turtle(board.DISPLAY)
 
-turtle.pencolor(Color.WHITE)
-
+mycolors = [Color.WHITE, Color.RED, Color.BLUE, Color.GREEN, Color.ORANGE, Color.PURPLE]
+turtle.penup()
+turtle.forward(130)
+turtle.right(180)
 turtle.pendown()
-turtle.circle(20)
-turtle.forward(20)
-turtle.circle(20, extent=180)
-turtle.forward(50)
-turtle.circle(50, steps=6)
+
+for i in range(6):
+    turtle.pencolor(mycolors[i])
+    turtle.circle(25)
+    turtle.penup()
+    turtle.forward(50)
+    turtle.pendown()
+
 while True:
     pass

examples/turtle_circle_hex.py

@@ -0,0 +1,12 @@
+import board
+from adafruit_turtle import turtle
+
+turtle = turtle(board.DISPLAY)
+turtle.pendown()
+
+for _ in range(32):
+    turtle.circle(50, steps=6)
+    turtle.right(11.1111)
+
+while True:
+    pass

examples/turtle_dots.py

@@ -1,16 +1,13 @@
 import board
-from adafruit_turtle import turtle, Color
-
-turtle = turtle(board.DISPLAY)
-size = min(board.DISPLAY.width, board.DISPLAY.height) * 0.5
-
-print("Turtle time! Lets draw a rainbow benzene")
+from adafruit_turtle import turtle
 
+print("Turtle time! Lets draw a square with dots")
 
+turtle = turtle(board.DISPLAY)
 turtle.pendown()
 
 for _ in range(4):
-    turtle.dot(8, Color.RED)
+    turtle.dot(8)
     turtle.left(90)
     turtle.forward(25)
 

examples/turtle_hilbert.py

@@ -0,0 +1,44 @@
+import board
+from adafruit_turtle import turtle
+
+def hilbert2(step, rule, angle, depth, t):
+    if depth > 0:
+        a = lambda: hilbert2(step, "a", angle, depth - 1, t)
+        b = lambda: hilbert2(step, "b", angle, depth - 1, t)
+        left = lambda: t.left(angle)
+        right = lambda: t.right(angle)
+        forward = lambda: t.forward(step)
+        if rule == "a":
+            left()
+            b()
+            forward()
+            right()
+            a()
+            forward()
+            a()
+            right()
+            forward()
+            b()
+            left()
+        if rule == "b":
+            right()
+            a()
+            forward()
+            left()
+            b()
+            forward()
+            b()
+            left()
+            forward()
+            a()
+            right()
+
+turtle = turtle(board.DISPLAY)
+turtle.penup()
+
+turtle.goto(-80, -80)
+turtle.pendown()
+hilbert2(5, "a", 90, 5, turtle)
+
+while True:
+    pass

examples/turtle_koch.py

@@ -0,0 +1,36 @@
+import board
+from adafruit_turtle import turtle
+
+def f(side_length, depth, generation):
+    if depth == 0:
+        side = turtle.forward(side_length)
+    else:
+        side = lambda: f(side_length / 3, depth - 1, generation + 1)
+        side()
+        turtle.left(60)
+        side()
+        turtle.right(120)
+        side()
+        turtle.left(60)
+        side()
+
+turtle = turtle(board.DISPLAY)
+
+unit = min(board.DISPLAY.width / 3, board.DISPLAY.height / 4)
+top_len = unit * 3
+print(top_len)
+turtle.penup()
+turtle.goto(-1.5 * unit, unit)
+turtle.pendown()
+
+num_generations = 3
+top_side = lambda: f(top_len, num_generations, 0)
+
+top_side()
+turtle.right(120)
+top_side()
+turtle.right(120)
+top_side()
+
+while True:
+    pass

examples/turtle_manual_hex.py

@@ -0,0 +1,20 @@
+import board
+from adafruit_turtle import turtle
+
+turtle = turtle(board.DISPLAY)
+
+
+# turtle.penup()
+# turtle.right(45)
+# turtle.forward(90)
+# turtle.right(75)
+
+turtle.pendown()
+for _ in range(21):
+    for _ in range(6):
+        turtle.forward(50)
+        turtle.right(61)
+    turtle.right(11.1111)
+
+while True:
+    pass

examples/turtle_overlayed_koch.py

@@ -0,0 +1,43 @@
+import board
+from adafruit_turtle import turtle, Color
+
+generation_colors = [Color.RED, Color.BLUE, Color.GREEN]
+
+def f(side_length, depth, generation):
+    if depth == 0:
+        side = turtle.forward(side_length)
+    else:
+        side = lambda: f(side_length / 3, depth - 1, generation + 1)
+        side()
+        turtle.left(60)
+        side()
+        turtle.right(120)
+        side()
+        turtle.left(60)
+        side()
+
+def snowflake(num_generations, generation_color):
+    top_side = lambda: f(top_len, num_generations, 0)
+    turtle.pencolor(generation_color)
+    top_side()
+    turtle.right(120)
+    top_side()
+    turtle.right(120)
+    top_side()
+
+
+turtle = turtle(board.DISPLAY)
+
+unit= min(board.DISPLAY.width / 3, board.DISPLAY.height / 4)
+top_len = unit * 3
+print(top_len)
+turtle.penup()
+turtle.goto(-1.5 * unit, unit)
+turtle.pendown()
+
+for generations in range(3):
+    snowflake(generations, generation_colors[generations])
+    turtle.right(120)
+
+while True:
+    pass

examples/turtle_sierpinski.py

@@ -0,0 +1,37 @@
+import board
+from adafruit_turtle import turtle
+
+def getMid(p1, p2):
+    return ((p1[0] + p2[0]) / 2, (p1[1] + p2[1]) / 2) #find midpoint
+
+def triangle(points, depth):
+
+    turtle.penup()
+    turtle.goto(points[0][0], points[0][1])
+    turtle.pendown()
+    turtle.goto(points[1][0], points[1][1])
+    turtle.goto(points[2][0], points[2][1])
+    turtle.goto(points[0][0], points[0][1])
+
+    if depth > 0:
+        triangle([points[0],
+                  getMid(points[0], points[1]),
+                  getMid(points[0], points[2])],
+                 depth-1)
+        triangle([points[1],
+                  getMid(points[0], points[1]),
+                  getMid(points[1], points[2])],
+                 depth-1)
+        triangle([points[2],
+                  getMid(points[2], points[1]),
+                  getMid(points[0], points[2])],
+                 depth-1)
+
+turtle = turtle(board.DISPLAY)
+big = min(board.DISPLAY.width / 2, board.DISPLAY.height / 2)
+little = big / 1.4
+seed_points = [[-big, -little], [0, big], [big, -little]] #size of triangle
+triangle(seed_points, 4)
+
+while True:
+    pass

examples/turtle_square.py

@@ -5,24 +5,11 @@
 print("Turtle time! Lets draw a simple square")
 
 turtle.pencolor(Color.WHITE)
-print("Position:", turtle.pos())
-print("Heading:", turtle.heading())
-
-turtle.penup()
-print("Pen down?", turtle.isdown())
 turtle.pendown()
-print("Pen down?", turtle.isdown())
-turtle.forward(25)
-print("Position:", turtle.pos())
-turtle.left(90)
-turtle.forward(25)
-print("Position:", turtle.pos())
-turtle.left(90)
-turtle.forward(25)
-print("Position:", turtle.pos())
-turtle.left(90)
-turtle.forward(25)
-print("Position:", turtle.pos())
+
+for _ in range(4):
+    turtle.forward(25)
+    turtle.left(90)
 
 while True:
     pass

examples/turtle_swirl.py

@@ -8,7 +8,7 @@
 
 colors = [Color.ORANGE, Color.PURPLE]
 
-for x in range(300):
+for x in range(400):
     turtle.pencolor(colors[x % 2])
     turtle.forward(x)
     turtle.left(91)