For example, when Krugman a month ago drew one of his famous "trend lines" based on a single point, a blogger named RJH immediately responded, "These trend lines you are drawing all over the place."
举个例子，克鲁格曼在一个月前以单一的基点画了一张他著名的“趋势线”，一个名叫“rjh”的网民立即做出了回应，“你画的这些乱七八糟的趋势线。”
It introduces the principle of the point-based rendering and some representative methods, discusses a way to deal with some holes on the surface which make in drawing the irregular geometric form.
文章介绍了基于点绘制技术的原理和比较有代表性的点绘制方法，探讨了外形非常复杂的不规则几何体在计算机图形绘制中生成的物体表面空洞的处理方法。
Line up is very simple to use and very easy to master, children's drawing are based on the line when the main case in point.
线条用起来非常简单，也非常容易掌握，儿童画画的时候就都是以线条为主就是例证。
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