Processing 1.0 _ALPHA_ - println() and color()...

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   println() and color()...

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Topic: println() and color()... (Read 246 times)

lunetta

println() and color()...
« on: May 8^th, 2004, 5:19pm »

hello all

I'm trying to understand a little the format a color() object is stored;
when I retrieve it with a println() function, it returns a value from -1 to -2^24;

-why the value is negative? any special reason?
-what is the formula to convert a (R, G, B) color value to this format?

thanks!

TomC

Re: println() and color()...
« Reply #1 on: May 8^th, 2004, 7:28pm »

The Language Reference for color offers some explanation:
http://processing.org/reference/color_.html

Negative color values, and more, are explained by toxi and fry here:
http://processing.org/discourse/yabb/board_Syntax_action_displa_y_num_1051039820.html

The formula you request is provided by arielm here:
http://processing.org/discourse/yabb/board_Syntax_action_displa_y_num_1060798598.html

You might be interested to know that these are both filed in Technotes in the reference section - it's an invaluable resource

« Last Edit: May 8^th, 2004, 7:29pm by TomC »

lunetta

Re: println() and color()...
« Reply #2 on: May 8^th, 2004, 9:13pm »

Oh, I'm so sorry about this... It hadn't ocurred to me to read the technotes regarding color before posting... the answers are there...

thanks and sorry again for the time waste

TomC

Re: println() and color()...
« Reply #3 on: May 8^th, 2004, 10:45pm »

No problem... Keep 'em coming!

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