def feigenbaum():
y_range = input(
"Zadej y rozsah oddelene - od nuly do 1. Napriklad 0.25-0.75: ").split(
"-")
x_range = input(
"Zadej x rozsah oddelene - od nuly do 1. Napriklad 0.25-0.75: ").split(
"-")
y_range[0] = float(y_range[0])
y_range[1] = float(y_range[1])
x_range[0] = float(x_range[0])
x_range[1] = float(x_range[1])
points = int(200 * abs(1 / abs(y_range[0] - y_range[1])))
start = 0.5
min = 2
max = 4
y = start
diference = int(200 * abs(1 / abs(y_range[0] - y_range[1])))
zofka = SvgTurtle(0, 0)
for x in range(min * diference, max * diference):
x = x / diference
for point in range(points):
y = x * y * (1.0 - y)
if y_range[0] < y < y_range[1] and x_range[0] < (
x - 2) / 2 < x_range[1]:
zofka.set_pos(((x - 2) * 500 - x_range[0] * 1000) *
(1 / abs(x_range[0] - x_range[1])),
(y * 1000 - y_range[0] * 1000) *
(1 / abs(y_range[0] - y_range[1])))
zofka.self_point()
zofka.save("feigenbaum.svg")
def n_square(n):
zofka = SvgTurtle(500, 500)
angle = (1 - 2 / n) * 180
for x in range(n):
zofka.forward(50)
zofka.left(180 - angle)
zofka.save("{}_square.svg".format(n))
def createOutputImage(filename, size, screen):
drawing = svgwrite.Drawing(filename, size=size)
drawing.add(drawing.rect(fill='white', size=("50%", "50%")))
t = SvgTurtle(drawing)
mainProgram(t)
screen.update()
drawing.save()
def write_file(draw_func, filename, size):
drawing = svgwrite.Drawing(filename, size=size)
drawing.add(drawing.rect(fill='white', size=("100%", "100%")))
t = SvgTurtle(drawing)
Turtle._screen = t.screen
Turtle._pen = t
draw_func()
drawing.save()
def my_picture():
zofka = SvgTurtle(500, 500)
angle = 1
for x in range(10000):
zofka.forward(40)
zofka.left(angle)
angle += 5
if x % 3 == 0:
angle -= 5
zofka.save("my_awsome_svg.svg")
def write_file(draw_func, filename, size):
# Uses svgwrite to export the turtle drawing to the out directory.
drawing = svgwrite.Drawing("out/" + filename, size=size)
drawing.add(drawing.rect(fill='white', size=("100%", "100%")))
t = SvgTurtle(drawing)
Turtle._screen = t.screen
Turtle._pen = t
draw_func()
drawing.save()
def n_square_points(n):
zofka = SvgTurtle(550, 850)
points = []
angle = (1 - 2 / n) * 180
for x in range(n):
zofka.forward(400)
zofka.left(180 - angle)
points.append(list(zofka.position()))
return points
def main():
drawing = svgwrite.Drawing("test_koch_knot.svg", size=("1000px", "1000px"))
t = SvgTurtle(drawing)
Turtle._screen = t.screen
Turtle._pen = t
speed(0)
koch_knot(1000, 0, 5)
drawing.save()
def write_file(draw_func, filename, size):
"""
Write turtle drawing to file
"""
drawing = svgwrite.Drawing(filename, size=size)
drawing.add(drawing.rect(fill="white", size=("100%", "100%")))
t = SvgTurtle(drawing)
Turtle._screen = t.screen
Turtle._pen = t
draw_func()
drawing.save()
def ring_with_lines():
zofka = SvgTurtle(500, 500)
for x in range(-200, 201, 25):
value = sqrt(200**2 - x**2)
y = x + 500
zofka.line(y, 500 + value, y, 500 - value)
zofka.line(500 + value, y, 500 - value, y)
zofka.save("ring_lines.svg")
def MRCM(points, transformations, iterations, name):
points = [points]
for x in range(iterations):
new_points = []
for point in points:
for tr in transformations:
new_points.append(affine_transformation(point, **tr))
points = new_points
set_of_points = points
x = 500
y = 500
turtle = SvgTurtle(x, y)
for points in set_of_points:
turtle.set_pos(points[0][0] + x, points[0][1] + y)
for point in points + [points[0]]:
turtle.set_pos(point[0] + x, point[1] + y, write=True)
turtle.save(name)
def convex_hull(points):
points = sorted(points, key=itemgetter(0))
angles = []
for point in points[1:]:
c = calculate_length(points[0], point)
b = points[0][1] - point[1]
angle = degrees(acos(b / c))
angles.append(angle)
points_angles = []
for x in range(len(angles)):
points_angles.append((points[x + 1], angles[x]))
points_angles = [[points[0], 0]] + sorted(points_angles, key=itemgetter(1))
points = [x[0] for x in points_angles]
zofka = SvgTurtle(1000, 1000)
for x, y in points:
zofka.point(x, y)
count = 1
while count != 0:
count = 0
lines = [points[0] + points[1]]
for x in range(1, len(points)):
try:
delete = True
while delete:
if not is_convex(points[x] + points[x + 1], lines):
print(x)
points.remove(points[x])
delete = True
count += 1
else:
delete = False
lines.append(points[x - 1] + points[x])
except IndexError:
break
for x in range(len(points)):
zofka.line(points[x][0], points[x][1], points[x - 1][0],
points[x - 1][1])
zofka.save("convex_hull.svg")
def create_maze(n):
walls = []
points = []
for x in range(1, n):
for y in range(1, n):
points.append((x, y))
for x in range(n):
walls.append(((0, x), (0, x + 1)))
walls.append(((x, n), (x + 1, n)))
walls.append(((n, x), (n, x + 1)))
walls.append(((x, 0), (x + 1, 0)))
while len(points):
point = choice(points)
x = point[0]
y = point[1]
c = 0
while point in points:
wall = create_wall(x, y)
if in_walls(wall, walls):
continue
if is_still_braid(walls, wall):
walls.append(wall)
points.remove(point)
try:
points.remove(wall[1])
except:
pass
c = c + 1
if c > n * 3:
return False
last_len = len(walls)
while True:
for x in range(n):
for y in range(n):
wall = create_wall(x, y)
if in_walls(wall, walls):
continue
if is_still_braid(walls, wall):
walls.append(wall)
if last_len == len(walls):
break
last_len = len(walls)
zofka = SvgTurtle(0, 0)
for d in walls:
zofka.line(d[0][0] * 100, d[0][1] * 100, d[1][0] * 100, d[1][1] * 100)
zofka.save("p.svg")
return True
def triangulation(n):
points = generate_points(n)
lines = []
for ia, a in enumerate(points):
for ib, b in enumerate(points):
if ib > ia:
lines.append((a, b, calculate_length(a, b)))
lines = sorted(lines, key=itemgetter(2))
zofka = SvgTurtle(1000, 1000)
printed_lines = []
for line in lines:
if not is_there_intersection(
(line[0][0], line[0][1], line[1][0], line[1][1]), printed_lines):
zofka.line(line[0][0], line[0][1], line[1][0], line[1][1])
printed_lines.append(
(line[0][0], line[0][1], line[1][0], line[1][1]))
zofka.save("triangulation.svg")
def affine_transformation(points, iteration=1, translation=False, rotation=False, scaling=False, write=False, own=False):
set_of_points = [points]
for x in range(iteration):
transformed_points = set_of_points[-1]
if translation:
transformed_points = ATr(transformed_points).translation(translation[0], translation[1])
if rotation:
transformed_points = ATr(transformed_points).rotation(rotation)
if scaling:
transformed_points = ATr(transformed_points).scaling(scaling[0], scaling[1])
if own:
transformed_points = ATr(transformed_points).own(own[0], own[1], own[2], own[3], own[4], own[5])
set_of_points.append(transformed_points)
if write:
x = 500
y = 500
turtle = SvgTurtle(x, y)
for points in set_of_points:
turtle.set_pos(points[0][0] + x, points[0][1] + y)
for point in points + [points[0]]:
turtle.set_pos(point[0] + x, point[1] + y, write=True)
turtle.save("picture.svg")
else:
return transformed_points
def write_file(filename):
t = SvgTurtle.create(500, 500)
draw_spiral(t)
t.save_as(filename)
def blow():
zofka = SvgTurtle(500, 500)
for x in range(12):
zofka.left(360/12)
n_square(zofka, 12)
zofka.save("blow.svg")
def svg_star(lines, tops, radius, name): # save svg file with star
turtle = SvgTurtle(400, 400)
angle = 180 - (1 - (2 / (lines * tops))) * 180
distance = radius * 2 * sin(pi /
(lines * tops)) # needed calculations for star
for top in range(tops):
for x in [-1, 1]:
turtle.set_pos(400, 400)
turtle.left(360 / tops * top)
turtle.forward(radius)
turtle.left(x * 180 - x * angle / 2)
end_of_line = SvgTurtle(400, 400)
end_of_line.right(360 / tops * (x - top))
for line in range(lines):
turtle.left(x * angle)
turtle.forward(distance)
end_of_line.forward(radius / lines)
turtle.connector(end_of_line)
turtle.save(name)
from turtle import *
import svgwrite
from svg_turtle import SvgTurtle
# Prepare SVG
drawing = svgwrite.Drawing("primes.svg", size=("10000px", "15000px"))
drawing.add(drawing.rect(fill='white', size=("100%", "100%")))
t = SvgTurtle(drawing)
Turtle._screen = t.screen
Turtle._pen = t
# Open the file with sorted prime numbers on each line
file = open("primes.txt", "r")
primes = file.readlines()
# Draw
right(90)
prev = int(primes[0])
for i in range(1, len(primes)):
# for i in range(1, 5000):
new = int(primes[i])
forward(new - prev)
right(90)
prev = new
# Save
drawing.save()
def star(n):
zofka = SvgTurtle(500, 500)
for x in range(2*n):
zofka.forward(150)
zofka.left(180 - 180/n)
zofka.save("star.svg")
def triangles():
zofka = SvgTurtle(500, 500)
length = 30
zofka.left(90)
for x in range(15):
positions = []
for x in range(3):
zofka.forward(length, write=False)
positions.append(zofka.position())
zofka.left(180)
zofka.forward(length, write=False)
zofka.right(60)
positions.append(positions[0])
for x in range(3):
zofka.line(positions[x][0], positions[x][1], positions[x+1][0], positions[x+1][1])
length += 30
zofka.save("triangles.svg")
def squares():
zofka = SvgTurtle(500, 500)
length = 400
cor_length = sqrt(0.75**2 + 0.25**2)
cor_angle = degrees(asin(0.25/cor_length))
for y in range(50):
for x in range(4):
zofka.forward(length)
zofka.right(90)
zofka.forward(length*0.25)
zofka.right(cor_angle)
length = length * cor_length
zofka.save("squares_in_squares.svg")
def chaos_game(n, iterations, r, name, random=False):
zofka = SvgTurtle(500, 800)
points = n_square_points(n)
if random:
numbers = [x-100 for x in range(200)]
for point in points:
point[0] += choice(numbers)
point[1] += choice(numbers)
for point in range(len(points)):
zofka.line(points[point][0], points[point][1], points[point-1][0], points[point-1][1])
for x in range(iterations):
point = choice(points)
t = SvgTurtle(point[0], point[1])
position = zofka.position()
if position[0] > point[0]:
posx = point[0] + abs(position[0] - point[0]) * r
else:
posx = position[0] + abs(position[0] - point[0]) * (1-r)
if position[1] > point[1]:
posy = point[1] + abs(position[1] - point[1]) * r
else:
posy = position[1] + abs(position[1] - point[1]) * (1-r)
zofka.set_pos(posx, posy)
zofka.self_point()
zofka.save(name+".svg")
def pentagram_relative():
zofka = SvgTurtle(500, 500)
for x in range(5):
zofka.forward(200)
zofka.left(180 - 36)
zofka.right(36)
length = 100/sin(radians(54))
angle = (1 - 2 / 5) * 180
for x in range(5):
zofka.forward(length)
zofka.left(180 - angle)
zofka.save("relative_pentagram.svg")
sys.path.insert(
0, '/home/dargen3/python/matematika_a_programovani/1-lesson/graphic/')
from svg_turtle import SvgTurtle
def sierpinski_penta(depth, base, zofka):
if depth == 0:
for i in range(5):
zofka.forward(base)
zofka.left(72)
else:
for x in range(5):
sierpinski_penta(depth - 1, base, zofka)
zofka.forward(base * 2.62**depth, write=False)
zofka.left(72)
for x in range(2):
zofka.forward(base * 2.62**(depth - 1))
zofka.left(72)
zofka.right(108)
sierpinski_penta(depth - 1, base, zofka)
zofka.right(144)
for x in range(2):
zofka.forward(base * 2.62**(depth - 1))
zofka.right(72)
zofka.left(180 + 72)
zofka.save("sierpinski_penta.svg")
zofka = SvgTurtle(1000, 1000)
sierpinski_penta(3, 10, zofka)
def pentagram_absolute():
zofka = SvgTurtle(500, 500)
angle = (1 - 2 / 5) * 180
positions = []
for x in range(5):
zofka.forward(200)
zofka.left(180-108)
positions.append(zofka.position())
for x in range(5):
zofka.line(positions[x][0], positions[x][1], positions[x-1][0], positions[x-1][1])
for x in range(5):
zofka.line(positions[x][0], positions[x][1], positions[x - 2][0], positions[x - 2][1])
zofka.save("absolute_pentragram.svg")
