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#! /usr/bin/env python
import colorsys
def hsv2ansi(h, s, v):
# h: 0..1, s/v: 0..1
if s < 0.1:
return int(v * 23) + 232
r, g, b = map(lambda x: int(x * 5), colorsys.hsv_to_rgb(h, s, v))
return 16 + (r * 36) + (g * 6) + b
def ramp_idx(i, num):
assert num > 0
i0 = float(i) / num
h = 0.57 + i0
s = 1 - pow(i0,3)
v = 1
return hsv2ansi(h, s, v)
def ansi_ramp(num):
return [ramp_idx(i, num) for i in range(num)]
ansi_ramp80 = ansi_ramp(80)
if __name__ == '__main__':
import sys
from py.io import ansi_print
colors = int(sys.argv[1]) if len(sys.argv) > 1 else 80
for col in range(colors):
ansi_print('#', "38;5;%d" % ramp_idx(col, colors), newline=False, flush=True)
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