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Description
From discussion #545
I tried converting @vsquared 's code to module mode and found it did not work:
# Reference for Turtle Graphics in Processing
# https://gist.githubusercontent.com/nataliefreed/8483050/raw/9e3f1d0f44bcb0c872762e4b984358d375e7b5fa/turtle.pde
import py5
end = 0.0
loc = 0.0
newLoc = 0.0
h = 600.0
w = (h / 1.325) / 1.325
orientation = py5.radians(90)
rotation = -45
showLines = False
def harriss(iteration):
global w
if iteration > 0:
iteration -= 1
fd(w, iteration)
lt(py5.radians(90))
w = w / 1.325
harriss(iteration)
def setup():
global loc
global showLines
py5.size(800, 750)
surface = py5.get_surface()
surface.set_title("Harriss Spiral Design")
showLines = False
loc = py5.Py5Vector(py5.width / 2 + 100, py5.height / 2 + 200)
py5.no_loop()
def draw():
global orientation
global rotation
global h
global w
# Base Spiral
harriss(7)
# Right Upper Spiral
jumpTo(495, 230)
h = 300.0
w = (h / 1.325) / 1.325
orientation = py5.radians(0)
rotation = 45
harriss(8)
# Left Upper Spiral
jumpTo(240, 238)
h = 250
w = (h / 1.325) / 1.325
rotation = -45
orientation = py5.radians(90)
harriss(7)
# Left Lower Spiral
jumpTo(240, 425)
h = 200
w = (h / 1.325) / 1.325
rotation = 225
orientation = py5.radians(180)
harriss(6)
# Center Lower Spiral
jumpTo(390, 425)
h = 175
w = (h / 1.325) / 1.325
rotation = 135
orientation = py5.radians(-90)
harriss(5)
# ======= Turtle Graphics Functions =========
def fd(w, iteration):
global loc
global newLoc
global end
global rotation
polar(w, orientation)
end = loc + newLoc
if showLines:
py5.stroke(0)
py5.stroke_weight(1)
py5.line(loc.x, loc.y, end.x, end.y)
py5.no_fill()
py5.stroke(py5.random(255), 0, py5.random(255))
py5.stroke_weight(12)
if (iteration == 7) or (iteration == 3):
py5.arc(
loc.x + w / 2,
loc.y - w / 2,
w * 1.414,
w * 1.414,
py5.radians(rotation),
py5.radians(rotation + 90),
)
if (iteration == 6) or (iteration == 2):
py5.arc(
loc.x - w / 2,
loc.y - w / 2,
w * 1.414,
w * 1.414,
py5.radians(rotation),
py5.radians(rotation + 90),
)
if (iteration == 5) or (iteration == 1):
py5.arc(
loc.x - w / 2,
loc.y + w / 2,
w * 1.414,
w * 1.414,
py5.radians(rotation),
py5.radians(rotation + 90),
)
if (iteration == 4) or (iteration == 0):
py5.arc(
loc.x + w / 2,
loc.y + w / 2,
w * 1.414,
w * 1.414,
py5.radians(rotation),
py5.radians(rotation + 90),
)
loc = end
rotation -= 90
def lt(theta):
global orientation
orientation += theta
def jumpTo(x, y):
global loc
loc = py5.Py5Vector(x, y)
def polar(r, theta):
global newLoc
newLoc = py5.Py5Vector(r * py5.cos(theta), r * py5.sin(-theta))
py5.run_sketch()The call to no_loop() in setup() causes the draw() function to never execute. I think how module mode handles this is correct; imported mode execution should not execute the draw() function.