Apple Newton Programmer’s Newton 2.0 (for Newton 2.0) - Manual (Page 529)

C H A P T E R 1 3
Drawing and Graphics
About Drawing 13-3
Figure 13-1 A line drawn with different bit patterns and pen sizes
A rectangle can be defined by two points—its top-left and bottom-right corners, as
shown in Figure 13-2, or by four boundaries—its upper, left, bottom, and right
sides. Rectangles are used to define active areas on the screen, to assign coordinate
systems to graphic entities, and to specify the locations and sizes for various
graphics operations.
Figure 13-2 A rectangle
Top
Bottom
Left
Right