83 lines
1.8 KiB
Python
Executable File
83 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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import numpy as np
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import os
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import sys
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import time
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import colorsys
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Nx = int(sys.argv[1])
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Ny = int(sys.argv[2])
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iterations = 10
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class Slider:
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def __init__(self, lo, hi, step, pos=0):
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self.lo = lo
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self.hi = hi
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self.stepSize = step
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self.pos = pos
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self.dir = 1
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def step(self):
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if self.pos >= self.hi:
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self.dir = -1
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elif self.pos <= self.lo:
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self.dir = 1
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self.pos += self.dir * self.stepSize
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return self.pos
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Sa = Slider(-10, 10, 0.1/iterations, np.random.uniform(-2, 2))
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Sb = Slider(-10, 10, 0.2/iterations, np.random.uniform(-2, 2))
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Sc = Slider(-10, 10, 0.2/iterations, np.random.uniform(-2, 2))
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Sd = Slider(-10, 10, 0.1/iterations, np.random.uniform(-2, 2))
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Se = Slider(-10, 10, 0.2/iterations, np.random.uniform(-2, 2))
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Sf = Slider(0, 6, 0.05/iterations, 0)
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x, y = np.meshgrid(
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np.linspace(-4, 4, Nx),
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np.linspace(-4, 4, Ny))
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color = 1.0
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img = np.zeros( [Ny, Nx, 3] )
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cr = 1.0
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cg = 0.5
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cb = 0.25
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step = 0
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while True:
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a = Sa.step()
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b = Sb.step()
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c = Sc.step()
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d = Sd.step()
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e = Se.step()
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f = Sf.step()
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Sa.pos += b*0.001
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Sb.pos += c*0.001
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Sc.pos += d*0.001
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Sd.pos += e*0.001
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Se.pos += f*0.001
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Sf.pos += a*0.001
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curve = (np.abs(a*x**2 + b*x*y + c*y**2 + d*x + e*y + f) <= 1.5)*1
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cr, cg, cb = colorsys.hsv_to_rgb(color, 1, 1)
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img[:,:,0] = np.where(curve > 0, curve*cr*255, img[:,:,0])
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img[:,:,1] = np.where(curve > 0, curve*cg*255, img[:,:,1])
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img[:,:,2] = np.where(curve > 0, curve*cb*255, img[:,:,2])
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step += 1
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if step % iterations == 0:
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out = img.reshape((Nx*Ny*3,)).astype(np.uint8)
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os.write(1, out.tobytes())
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time.sleep(0.01)
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color = (color+0.01/iterations ) % 1
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