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James Gregory 2013-12-30 20:43:14 +11:00
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---
title: Michael Abrash's Graphics Programming Black Book, Special Edition
author: Michael Abrash
date: '1997-07-01'
isbn: '1576101746'
publisher: The Coriolis Group
category: 'Web and Software Development: Game Development,Web and Software Development:
Graphics and Multimedia Development'
chapter: '50'
pages: 943-945
---
The other 2-D element we need is some way to erase the polygon at its
old location before it's moved and redrawn. We'll do that by remembering
the bounding rectangle of the polygon each time it's drawn, then erasing