def circle_lines(r, count):
im = Svg("circle_lies_" + str(r) + "_" + str(count) + ".svg")
for i in range(count):
x = -r + r * 2 / count * i
y = sin(acos(x / r)) * r
im.line(x, y, x, -y)
im.line(y, x, -y, x)
im.close()
def pentagram_absolute(l):
im = Svg("penta_" + str(l) + ".svg")
points = []
for i in range(5):
points.append((cos(radians(72 * i)) * l, sin(radians(72 * i)) * l))
for i in range(5):
im.line(points[i][0], points[i][1], points[(i + 1) % 5][0],
points[(i + 1) % 5][1])
im.line(points[i][0], points[i][1], points[(i + 2) % 5][0],
points[(i + 2) % 5][1])
im.close()
def test():
im = Svg("test.svg")
sq = deepcopy(SQUARE_2)
for line in sq:
im.line(line[0][0], line[0][1], line[1][0], line[1][1])
trans = [shear(1.3), rotation(-10), scaling(0.9, 0.9), translation(50, 50)]
for i in range(15):
for i in range(4):
p1, p2 = sq[i][0], sq[i][1]
for tran in trans:
p1, p2 = apply(p1, tran), apply(p2, tran)
sq[i] = (p1, p2)
for line in sq:
im.line(line[0][0], line[0][1], line[1][0], line[1][1])
im.close()
def nested_polygons(poly=3, size=200, count=10):
im = Svg("poly.svg")
points = []
for i in range(count):
r = size / count * (i + 1)
points = []
for j in range(poly):
points.append((cos(radians(360 / poly * j)) * r,
sin(radians(360 / poly * j)) * r))
for i in range(poly):
im.line(points[i][0], points[i][1], points[(i + 1) % poly][0],
points[(i + 1) % poly][1])
im.close()
def mcrm(base, trans, iters):
im = Svg("test.svg")
for i in range(iters):
new_base = []
for line in base:
for tran in trans:
p1, p2 = line
for t in tran:
p1, p2 = apply(p1, t), apply(p2, t)
new_base.append((p1, p2))
base = new_base
for line in base:
im.line(line[0][0], line[0][1], line[1][0], line[1][1])
im.close()