The Canvas
To understand what is going on, we first have to talk about the canvas. In this course all drawing is done on a carves. The camas is made up of time colored points, or phaals, We use (x, y) coordinates to talk about pixels on the camas, like so:
- (0,0) is the left-top corner of the canvas (not the middiel).
- As x increases. you head right.
- As y increases, you head down, not up!
- Our carinas is a 400 x 400 square, so (200,200) is the middle of the cameos, and (400,400) is the right bottom corner.
