CSC151 2009F, Class 09: Laboratory: Writing Your Own Procedures

Admin:
* Grinnell traditions for first years to learn about: Casual Fridays!
* Grinnell traditions for first years to avoid: Cross country behavior
  the day before Les Duke
* EC/Support: Les Duke meet Saturday.  Buses leave from PEC.
* Lab writeup 2 assigned.  Today's lab, exercises 4-7.  Due Tuesday.
* As you might expect, we have quiz 2 today!  When you finish the 
  quiz, you can start on the lab.
* There are two relatively short readings for Monday: 
  * Raster Graphics 
  * RGB colors.  
* There will be no reading for Tuesday.
* Summary of upcoming and work due week:
  * Monday: Due: Readings on Raster Graphics and RGB Colors
  * Tuesday: Due: Writeup from today's lab
    + Guest lecture by Matt Kluber
  * Wednesday: Due: Assignment 3; Reading on Transforming Colors
  * Thursday: No Class
  * Friday: Due: Reading on Transforming Images
    + Exam 1 distributed!
    + Quiz!

Overview:
* Quiz!
* Lab!

Pre-quiz Questions:
* Order of drawing-shift and drawing-scale
  * Matters
  * Scaling scales both position and size
* Why use drawings rather than image-select and friends?
  * A different way of thinking about images
  * Different model of operations
  * Some insight into underlying representations
  * Purity
  * Some things are easier
* Can I see a sequence of drawing operations using define?
  * No
  * Well, okay, there's in yesterday's eboard
* Can you explain something in the reading
  * Nah.  I'll talk about it during lab.

Quiz!
* Start the lab when you're done with the quiz.

Lab!