Basic curvature: Understanding polygon count and its importance in creating smooth curvature.
基本曲率：了解多边形数量及其在创建平滑曲率中的重要性。
In this article, the authors study the trimming of a random smooth curve in a plane polygon and present an arithmetic for it, with the conclusion drawn from the concept of traversing point.
研究了平面任意封闭区域对平面任意光滑曲线的裁剪，提出光滑曲线对封闭区域的穿越点概念，并以穿越点为依据，给出了平面任意封闭区域对光滑曲线的裁剪算法。
The new four kinds of subdivision schemes is not only to keep smooth of limit curve, but also has excellent quality of keeping shape of initial polygon.
这一类细分模式在满足极限曲线的光滑性外，还具有保持初始多边形形状的优良性质。
And they are often distorted. First, a low passed filter is used to smooth the contour. And a polygon approximating method based on area error is used to approximate the contour.
鉴于这种情况，我们先使用低通滤波对轮廓曲线作光顺处理，随后再采用基于面积误差的多边形逼近法对曲线作逼近处理。
And they are often distorted. First, a low passed filter is used to smooth the contour. And a polygon approximating method based on area error is used to approximate the contour.
鉴于这种情况，我们先使用低通滤波对轮廓曲线作光顺处理，随后再采用基于面积误差的多边形逼近法对曲线作逼近处理。
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