Developed by Judy D. Halchin (jhalchin@alleg.edu), Educational Computing Services, Allegheny College, Meadville, PA 16335.
Discipline: Programming
A NumberLine is a View that displays a mathematical number line. The number line will be horizontal if the view is wider than it is high, or vertical if the view is higher than it is wide. Tick marks, and labels for every fifth tick mark, are calculated and displayed automatically. The labels can be placed either above or below (for a horizontal line) or on the left or the right (for a vertical line) of the line itself. The gray of the line, the labels, and the background can be set programatically. Several methods are provided for easily setting the range of numbers shown on the number line.
NumberLine is available from a dynamically loaded InterfaceBuilder palette.
This application was developed under NeXTstep release 2.2.
