nac3/nac3standalone/demo/mandelbrot.py

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2021-09-22 14:30:52 +08:00
def run() -> int32:
minX = -2.0
maxX = 1.0
width = 78.0
height = 36.0
aspectRatio = 2.0
yScale = (maxX-minX)*(height/width)*aspectRatio
y = 0.0
while y < height:
x = 0.0
while x < width:
c_r = minX+x*(maxX-minX)/width
c_i = y*yScale/height-yScale/2.0
z_r = c_r
z_i = c_i
i = 0
while i < 16:
if z_r*z_r + z_i*z_i > 4.0:
break
new_z_r = (z_r*z_r)-(z_i*z_i) + c_r
z_i = 2.0*z_r*z_i + c_i
z_r = new_z_r
i = i + 1
output_asciiart(i)
x = x + 1.0
output_asciiart(-1)
y = y + 1.0
return 0