def test_rotation(self):
t = Turtle()
self.assertEqual(t.rotation, 0)
t.right(30)
self.assertEqual(t.rotation, 30)
t.left(30)
self.assertEqual(t.rotation, 0)
def test_position(self):
t = Turtle()
self.assertEqual(t.pos_x, 0)
self.assertEqual(t.pos_y, 0)
t.move(1, 1)
self.assertEqual(t.pos_x, 1)
self.assertEqual(t.pos_y, 1)
def test_position(self):
t = Turtle()
self.assertEqual(t.pos_x, 0)
self.assertEqual(t.pos_y, 0)
t.move(1, 1)
self.assertEqual(t.pos_x, 1)
self.assertEqual(t.pos_y, 1)
def lsystem2drawille(lsystem, n, size, initial_rotation):
def restore():
pos, angl = q.pop()
t.up()
t.move(pos[0], pos[1])
t.rotation = angl
t.down()
def move(pen):
if not pen:
t.up()
t.fd(size)
if not pen:
t.down()
q = []
methods = {
'-': lambda: t.left(lsystem.angle),
'+': lambda: t.right(lsystem.angle),
'[': lambda: q.append(([t.pos_x, t.pos_y], t.rotation)),
']': restore,
}
for v in lsystem.ignore:
methods[v] = lambda: None
t = Turtle()
t.rotation = initial_rotation
for c in lsystem.iterate(n):
try:
methods[c]()
except KeyError:
move(c.isupper())
pass
return t.frame()
def test_rotation(self):
t = Turtle()
self.assertEqual(t.rotation, 0)
t.right(30)
self.assertEqual(t.rotation, 30)
t.left(30)
self.assertEqual(t.rotation, 0)
def test_brush(self):
t = Turtle()
self.assertFalse(t.get(t.pos_x, t.pos_y))
t.forward(1)
self.assertTrue(t.get(0, 0))
self.assertTrue(t.get(t.pos_x, t.pos_y))
t.up()
t.move(2, 0)
self.assertFalse(t.get(t.pos_x, t.pos_y))
t.down()
t.move(3, 0)
self.assertTrue(t.get(t.pos_x, t.pos_y))
def test_brush(self):
t = Turtle()
self.assertFalse(t.get(t.pos_x, t.pos_y))
t.forward(1)
self.assertTrue(t.get(0, 0))
self.assertTrue(t.get(t.pos_x, t.pos_y))
t.up()
t.move(2, 0)
self.assertFalse(t.get(t.pos_x, t.pos_y))
t.down()
t.move(3, 0)
self.assertTrue(t.get(t.pos_x, t.pos_y))
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from drawille import Turtle
t = Turtle()
for _ in range(36):
t.right(10)
for _ in range(36):
t.right(10)
t.forward(8)
print(t.frame())
def goldenratio2drawille(goldenratio, n, s, angle):
def square(size):
for i in range(4):
t.forward(size)
t.right(goldenratio.angle)
# Taken from python turtle library
def circle(radius, extent=None, steps=None):
fullCircle = 360
if extent is None:
extent = fullCircle
if steps is None:
frac = abs(extent) / fullCircle
steps = 1+int(min(11+abs(radius) / 6.0, 59.0)*frac)
w = 1.0 * extent / steps
w2 = 0.5 * w
l = 2.0 * radius * sin(w2*pi/180.0)
if radius < 0:
l, w, w2 = -l, -w, -w2
t.right(w2)
for i in range(steps):
t.forward(l)
t.right(w)
t.left(w2)
t = Turtle()
size = getTerminalSize()[0] + s
t.rotation = goldenratio.angle + angle
for i in range(n):
square(size)
t.forward(size)
t.right(goldenratio.angle)
t.forward(size)
size /= goldenratio.phi
t.up()
t.move(0, 0)
t.down()
size = getTerminalSize()[0] + s
t.rotation = goldenratio.angle + angle
for i in range(n):
circle(size, 90)
size /= goldenratio.phi
return t.frame()
def drawille_frame(data: List[Ohlc], *, scale=4.0, offset=0.0):
t = Turtle()
scaled = (o.transform(scale, offset) for o in data)
x = 0
for o, h, l, c in scaled:
x += 1
top = max(o, c)
bot = min(o, c)
t.up()
t.move(x, bot)
t.down()
# draw box
t.move(x, top)
t.move(x + 2, top)
t.move(x + 2, bot)
t.move(x, bot)
# draw spikes
t.up()
t.move(x + 1, l)
t.down()
if o <= c:
t.move(x + 1, bot)
t.up() # draw lower bullish spike
t.move(x + 1, top)
t.down() # move to upper bullish spike
t.move(x + 1, h) # draw uppper bullish or full bearish spike
t.up()
x += 3
return t.frame()
def test_brush(self):
turtle = Turtle()
self.assertFalse(turtle.get(turtle.pos_x, turtle.pos_y))
turtle.forward(1)
self.assertTrue(turtle.get(0, 0))
self.assertTrue(turtle.get(turtle.pos_x, turtle.pos_y))
turtle.up()
turtle.move(2, 0)
self.assertFalse(turtle.get(turtle.pos_x, turtle.pos_y))
turtle.down()
turtle.move(3, 0)
self.assertTrue(turtle.get(turtle.pos_x, turtle.pos_y))
