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

image.new

Procedure image.new
Parameters width, a positive integer
height, a positive integer
Purpose Create an image of the specified width and height
Produces img, an image
Preconditions (None)
Postconditions img is a new image
(image.width img) is width
(image.height img) is height
Practica
  > (define my-image (image.new 20 10))
  > (image.width my-image)
  20
  > (image.height my-image)
  10

 

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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.