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Next: Pythonic list reordering
From: Chris Colbert on 8 Apr 2010 13:23
On Thu, Apr 8, 2010 at 1:14 PM, Tobiah <toby(a)rcsreg.com> wrote:
>> Look at the colorsys module.
>>
>> http://docs.python.org/library/colorsys.html?highlight=colorsys#module-
> colorsys
>
> That so rocks.  Thanks!
> --
> http://mail.python.org/mailman/listinfo/python-list
>

How does that answer your original question?
From: Tobiah on 8 Apr 2010 14:34
> How does that answer your original question?

I was able to do this:

import colorsys

sat = 1
value = 1
length = 1000
for x in range(0, length + 1):
hue = x / float(length)
color = list(colorsys.hsv_to_rgb(hue, sat, value))
for x in range(3):
color[x] = int(color[x] * 255)
hexval = ("#%02x%02x%02x" % tuple(color)).upper()
print "<div style='height: 1; width: 500; background-color: %s'>"
% hexval


http://tobiah.org/rainbow.html
From: Peter Parker on 8 Apr 2010 16:39
Tobiah wrote:
>> How does that answer your original question?
>
> I was able to do this:
>
> import colorsys
>
> sat = 1
> value = 1
> length = 1000
> for x in range(0, length + 1):
> hue = x / float(length)
> color = list(colorsys.hsv_to_rgb(hue, sat, value))
> for x in range(3):
> color[x] = int(color[x] * 255)
> hexval = ("#%02x%02x%02x" % tuple(color)).upper()
> print "<div style='height: 1; width: 500; background-color: %s'>"
> % hexval
>
>
> http://tobiah.org/rainbow.html

Roy G. Biv would like you to order the colors according to their
wavelength. He would also like to see Orange and Yellow appear in
your rainbow.
From: Neil Hodgson on 8 Apr 2010 18:02
Tobiah:

> for x in range(0, length + 1):
> ...
> for x in range(3):

You should use different variables for the two loops.

Neil

From: Neil Hodgson on 8 Apr 2010 18:14
Me:
> You should use different variables for the two loops.

Actually it is closing the divs that makes it work in FireFox:

import colorsys

sat = 1
value = 1
length = 1000
for h in range(0, length + 1):
hue = h / float(length)
color = list(colorsys.hsv_to_rgb(hue, sat, value))
for x in range(3):
color[x] = int(color[x] * 255)
hexval = ("#%02x%02x%02x" % tuple(color)).upper()
print(
"<div style='height: 1; width: 500; background-color: %s'>"
"</div>" % hexval)

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