1. The geometry processing velocity is 1 million quadrilaterals per second. 几何处理速度为每秒一百万个四边形。
2. The example in Listing 4 creates 10 random quadrilaterals where the points must be in clockwise or counter-clockwise order. 清单4内的示例创建了10个随机的四边形其中这些点必须是顺时针或逆时针顺序。
3. Thus far, the web has largely been confined to quadrilaterals, which are responsible for the classic "boxy" aesthetic that defines most of the web. 目前为止,web主要限于使用四边形,这造就了经典的“框式”设计美学,决定了大多数web的布局。