Why are RECTs endpoint-exclusive?

Raymond Chen February 18, 2004 Feb 18, 2004 02/18/04

Endpoint-exclusive RECTs and lines are much easier to work with. For example, the width of a rectangle is right - left, and its height is bottom - top. If rectangles were endpoint-inclusive, then there would be annoying +1's everywhere. End-point exclusive rectangles also scale properly. For example, suppose you have two rectangles (0,0)-(...