def main(args):
screen = display.Display().screen()
swidth = screen["width_in_pixels"]
sheight = screen["height_in_pixels"]
target = liblo.Address(args.host, args.port)
N = int(args.dims)
p = int(args.bits)
tbits = N * p
fp = 2.0**p
screen_max = 2**11
total_screen_max = 2**(2 * 11)
dim_max = 2**tbits
last_h = -1
while True:
x, y = getXY()
x = screen_max * x / swidth
y = screen_max * y / sheight
h = hilbert.distance_from_coordinates([x, y], 11, 2) # 2048x2048
new_h = dim_max * h / total_screen_max
new_x = hilbert.coordinates_from_distance(new_h, p, N)
if last_h != new_h:
print(h, new_h, new_x)
new_xf = map(lambda x: x / fp, new_x)
liblo.send(target, "/mouse", *new_xf)
last_h = new_h
time.sleep(1.0 / 30.0)
def test_reversibility(self):
"""Assert coordinates_from_distance and distance_from_coordinates
are inverse operations."""
N = 3
p = 5
n_h = 2**(N * p)
for h in range(n_h):
x = hilbert.coordinates_from_distance(h, p, N)
h_test = hilbert.distance_from_coordinates(x, p, N)
self.assertEqual(h, h_test)
def test_reversibility(self):
"""Assert coordinates_from_distance and distance_from_coordinates
are inverse operations."""
N = 3
p = 5
n_h = 2 ** (N * p)
for h in range(n_h):
x = hilbert.coordinates_from_distance(h, p, N)
h_test = hilbert.distance_from_coordinates(x, p, N)
self.assertEqual(h, h_test)
def location():
x = min(180.0, max(-180.0, float(request.args.get("x"))))
y = min(85.0, max(-85.0, float(request.args.get("y"))))
x = int(screen_max * (x + 180.0) / 360.0)
y = int(screen_max * (y + 85.0) / (2 * 85.0))
h = hilbert.distance_from_coordinates([x, y], 11, 2) # 2048x2048
for i in range(1, N + 1):
dim_max = 2**(i * p)
new_h = dim_max * h / total_screen_max
new_x = hilbert.coordinates_from_distance(new_h, p, i)
print(new_x)
new_xf = map(lambda x: x / fp, new_x)
liblo.send(target, "/mouse" + str(i), *new_xf)
return ('', 204)
import matplotlib.pyplot as plt
import hilbert
plt.figure(figsize=(10,10))
N = 2 # number of dimensions
p = 3 # number of iterations
npts = 2**(N*p)
pts = []
for i in range(npts):
pts.append(hilbert.coordinates_from_distance(i, p, N))
connectors = range(3, npts, 4)
for i in range(npts-1):
if i in connectors:
color='grey'
linestyle='--'
else:
color='black'
linestyle='-'
plt.plot( (pts[i][0], pts[i+1][0]), (pts[i][1], pts[i+1][1]),
color=color, linewidth=3, linestyle=linestyle)
for i in range(npts):
plt.scatter(pts[i][0], pts[i][1], 60, color='red')
plt.text(pts[i][0] + 0.1, pts[i][1] + 0.1, str(i))
side = 2**p - 1
cmin = -0.5
cmax = side + 0.5
plt.grid()
