Recall from Section 1 of compositePieIndicators.pl that the location of the text is defined as the first set of polygon coordinates on a line from the triangle.vertices file.
回想一下compositePieIndicators.pl的第 1 部分，文本的位置被定义为 triangle.vertices 文件中某一行的第一组多边形坐标。
Triangles are popular with 3d implementations because you can define any polygon as a set of triangles.
任何多边形都可定义为一组三角形的集合，因此三角形在3d实现中应用十分广泛。
In order to prevent us from drawing one poly more than one time we should have a flag on each polygon which will be set if the poly is drawn for the first time.
为了防止重画一个多边形，我们应当在每一个多边形上做一个标记，当多边形第一次被画的时候，设置这个标记当然画之前也要检查这个标记啦，不过肯定影响效率。
How to convert a polygon to a set on non-overlapping triangles?
如何将一个多边形的一组非重叠的三角形？
A simple linear gradient is easy: draw a quadrilateral polygon with two of its vertices set to one color and two of its vertices set to a second color.
简单线性梯度很容易：画一个四边形多边形的两个顶点设置为一个颜色和它的两个顶点设置为第二个颜色。
The relative frequency polygon has the same shape as the frequency polygon made from the same data set but a different scale of values on the vertical axis.
根据同一资料绘制的相对频率多边形与频率多边形的形状是相同的，只是纵轴上的标尺不同。
This paper improves the fast convex hull algorithm of planar point set based on sorted simple polygon.
提出了一种基于有序简单多边形的平面点集凸包快速求取的改进算法，新的算法能够避免极值点重合的问题。
By default, the polygon-filling mode is ALTERNATE, but you can set it to WINDING. The difference between the two modes is shown in Figure 5-19.
缺省情况下，多边形填充模式是ALTERNATE，但是你可以设置它为WINDING。这两种模式之间的区别在图5 - 19中显示。
Maximum empty circle convex polygon and maximum empty sphere convex polyhedron are introduced to compute triangulation on a set of irregularly located spatial points.
提出最大空圆凸多边形和最大空球凸多面体的概念。
The terrain where Phoenix set its three legs is relatively flat with polygon-shaped patterns in the ground likely caused by the expansion and contraction of underground ice.
菲尼克斯放置三个支架的地形相对来说比较平坦，地面上多角形图案看起来好像是由于地下永冻土的扩张和收缩形成的。
Photic inner bag can be set in the facing, the face can jointed by several photic polygon leathers.
在皮面内还可设透光的内胆，皮面则可由多块多边形皮革块用可透光的拼接条拼接而成。
Given an area error, a polygon with minimized points set can be achieved.
算法可以在指定的面积误差门限范围内，满足用户对逼近效果的要求。
Equation about isometric polygon curve is set up with differential geometry theory. The curve is proved to be convex curve which the distance between any parallel tangent lines is equal.
应用微分几何理论，导出了等距曲线的方程，证明了它是具有任意两条平行切线之间距离都相等的卵形线。
Equation about isometric polygon curve is set up with differential geometry theory. The curve is proved to be convex curve which the distance between any parallel tangent lines is equal.
应用微分几何理论，导出了等距曲线的方程，证明了它是具有任意两条平行切线之间距离都相等的卵形线。
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