查询词典 concave polygon

That the clip boundary be convex where as the other object may be a concave non-self intersecting polygon.

该剪辑凸边界在与其他物体可能是一个凹非自相交多边形。

Free form surface ; simple polygon ; concave vertices ; route planning

自由曲面；简单多边形；凹点；路径规划

By talking above problems, the paper brings forward a new concept that is called the background information of grid creation, and thinks over three points of the improvement of front advance, and puts forward and talks the essential of judging whether the polygon is concave or protruding and six practical methods.

在探讨过程中，本文提出了背景信息这一概念，考虑了改进阵面推进法的三个要点，提出并详细讨论了判断多边形凹凸方法的实质和六种实用方法，此外还着重对网格粗细会对数值计算产生什么影响及如何产生影响作了较严格的分析。

By using the position information of concave vertices, a new algorithm for finding the kernel of a simple polygon was proposed,which could automatically select concave vertex to clip against polygon to obtain the kernel.

利用凹顶点间的位置信息，提出一种自动选择凹顶点来裁剪多边形的新求核算法。

Convex polygon, which means that if a portal turns out to be concave, we will generate several

味着如果Portal 是一个凹多边形，我们必须将其切分为数个凸多边形。

I will precise this concept of convex / concave volumes later because it's very important, for the moment let's come back to our definition of the portal : in this whole document it means my n-sided flat and convex polygon, but be aware that in other texts it can represent an elementary volume of the scene.

我会在后面详细分析凹凸多面体的概念因为这是很重要的。现在我们讨论入口的定义：这里入口表示一个平面的凸多边形，其他的文献中可能表示场景中间的一个基本的空间或者单元。

By the study of several typic methods of determining convexo-concave features for vertices of polygon, the computation time complexity of these methods was analysed, and those methods were implemented in VC++.

摘 要：主要针对几种典型的多边形顶点凸凹性识别算法进行研究，对它们的计算时间复杂度进行分析，并用 VC++6.0实现多边形顶点凸凹性的高效识别。

A new algorithm of concave-convex feature of polygon is introduced in this paper.

介绍一种求多边形凸凹性的新算法。

Considering the triangulation algorithm based only on the determination of convex-concave vertices is restricted to simple polygons, this paper presents a triangulation algorithm for the general plane polygon GTP(General Triangulation of Polygons) based on determination of convex-concave vertices and connecting the outer border of a polygon with its inner borders.

摘 要：针对基于凹凸顶点判定的三角剖分算法适用范围有限的缺点，提出了将凹凸顶点判定与连接多边形内外边界相结合的适用任意平面多边形的三角剖分算法GTP(General Triangulation of Polygons)。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。