[kw-pm] TPR at upcoming meeting
Daniel R. Allen
da at coder.com
Tue Jan 18 16:58:36 PST 2005
On Tue, 18 Jan 2005, lloyd carr wrote:
> What about colour?
Indeed. What about it? :)
> So what values would you use to create a RGB colour wheel?
all of them? :)
> Also how do you make a RGB colour on the wheel darker, is it some
> proportitional lowering of the values?
> I'm not looking for code, just numbers and arithmetic.
Disclaimer; I know very little about the math involved. (Hence the
uselessness of my answers above!)
The perldoc here:
suggests that converting from RGB to a HSV colour wheel (say) is
non-linear if you want to correct for gamma.
Check out the "see also" section on that page for two interesting
references for more info. The first one looks well suited to providing an
explanation without code...
> - Lloyd
> On Tue, 18 Jan 2005, Eric - fishbot wrote:
> > Date: Tue, 18 Jan 2005 14:32:49 -0500 (EST)
> > From: Eric - fishbot <eric at uc.org>
> > To: K/W Perl Mongers <kw-pm at mail.pm.org>
> > Subject: [kw-pm] TPR at upcoming meeting
> > Looking forward to seeing everyone this Thursday. Just a couple
> > of notes and questions:
> > - Yesterday I received a number (6) of copies of The Perl
> > Review in the mail. So, I have my copy, and I will place
> > one in the kwpm library (which is roughly equivalent to
> > Daniel). That leaves several to distribute. I am
> > tempted to ask for something like your favourite
> > commandline switch, or a cool use for statement
> > modifiers, but history tells me that I would end up
> > carrying most copies back home :( So, free copy to the
> > first 4 people who arrive.
> > - I am thinking that in March or April I would try to give
> > a talk about Perl 6 Rules and Grammars. They are
> > tremendously powerful, and it is possible that we might
> > actually be able to use them in place of tools like
> > Parse::RecDescent and lex/yacc well before Perl 6 sees a
> > production environment. Please let me know if there is
> > interest in this topic.
> > Notes for Daniel:
> > - Pizza for me, please. I linked the PizzaList wikipage to
> > the meeting, hope that doesn't make your life harder.
> > - I'm returning Perl & XML to the lending library. Can I
> > borrow the Alpaca book?
> > See everyone in a couple days,
> > Eric
> > _______________________________________________
> > kw-pm mailing list
> > kw-pm at pm.org
> > http://mail.pm.org/mailman/listinfo/kw-pm
> dcarr at sdf.lonestar.org
> SDF Public Access UNIX System - http://sdf.lonestar.org
> kw-pm mailing list
> kw-pm at pm.org
More information about the kw-pm