Fundamentals of Computer Science I: Media Computing (CS151.02 2007F)

rgb.red

Procedure rgb.red
Parameters color, a color
Purpose Get the red component of color.
Produces red-component, an integer
Preconditions color is a valid rgb color, created by rgb.make
Postconditions red-component is between 0 and 255
Pals rgb.blue, rgb.green

 

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Samuel A. Rebelsky, rebelsky@grinnell.edu

Copyright © 2007 Janet Davis, Matthew Kluber, and Samuel A. Rebelsky. (Selected materials copyright by John David Stone and Henry Walker and used by permission.) This material is based upon work partially supported by the National Science Foundation under Grant No. CCLI-0633090. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. This work is licensed under a Creative Commons Attribution-NonCommercial 2.5 License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/2.5/ or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.