Created
October 1, 2012 20:52
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generate some random colors for CatLog
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#!/bin/sh/env python | |
# | |
# Quick script to generate eye-pleasing colors based on a single Saturation and Value (Brightness). | |
# Print out in HTML hex format | |
# | |
# usage: generate_random_colors.py numColors saturation value multiMode htmlMode | |
# | |
import sys, colorsys, random | |
try: | |
num_colors = int(sys.argv[1]) | |
saturation = float(sys.argv[2]) | |
brightness = float(sys.argv[3]) | |
multiMode = int(sys.argv[4]) == 1 | |
htmlMode = int(sys.argv[5]) == 1 | |
except: | |
sys.exit("usage: generate_random_colors.py numColors saturation value multiMode htmlMode") | |
PHI = 1.61803398875; | |
bgColor = 'aaaaaa'; | |
if (htmlMode): | |
pre_text = '<span whatever=\'%s\'><font color=\'#' | |
post_text = '\'><br/>FOOBAR</font></span>' | |
print '<body bgcolor="#%s">' % (bgColor) | |
else: | |
pre_text = '<color name="chart_line_%s">#FF' | |
post_text = '</color>' | |
hue = random.random(); | |
def toHex(num): | |
return (hex(int(round(255 * num)))[2:]).zfill(2) | |
for j in range(1000): | |
if (multiMode): | |
saturation = float(random.random()) | |
brightness = float(random.random()) | |
print "<p/><span>saturation: %g, brightness: %g</span><br/>" % (saturation,brightness) | |
for i in range(num_colors): | |
rgb = colorsys.hsv_to_rgb(hue,saturation,brightness) | |
print (pre_text + '%s%s%s' + post_text) % tuple([str(i + 1).zfill(2)] + map(toHex,rgb)) | |
# use the golden mean to get a nice distribution of colors | |
hue = (hue + (1.0 / PHI)) % 1 | |
if (not multiMode): | |
break | |
if (htmlMode): | |
print '</body>' | |
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