查询词典 polygon

In Figure 5.4, an instance of Point may be part of a polygon or may be the center of a circle, but it cannot be both.

在图5.4中，point的一个实例可以是多边形的一部分，也可以是一个圆的圆心，但不能同时充当这两种角色。

In this paper,the B-spline curve is supposed as boundary curves,when they are in two paralled plane and two arbitrary plane,the condition about the control vertex of characteristic polygon when the ruled surface is developable are gained,solved the designing problem of degree and degree B-spline curve .Throughing (2,3) degree and (2,2) degree B-spline ,we haveproved the validity and utility of this method.

本文用两条B样条曲线作边界曲线，当它们位于两平行平面上和两任意平面上时，研究得到了由它们形成的直纹面为可展面时它们的特征多边形顶点满足的条件，解决了(n，n+1)次和次可展B样条曲面的设计问题，然后以(2，3)次和(2，2)次B样条曲面为构造实例，证明了该算法的正确性和实用性。

On the basis of Aumann,Meng Ya-qin and Ye Zheng-lin[13],Cuan-ying and Xue Ji-jun[16] have gained some conditions about characteristic polygon of the ruled surface,they used two Bezier curves in paralled plane as boundary curves to get ruled surface.

国内孟雅琴、叶正麟、爨莹、薛继军等人在Anmann方法的基础上，用位于两平行平面上的两条Bézier曲线作边界曲线，形成直纹面，并得到了它们可展时特征多边形顶点应该满足的条件。

By contrast, linear texture filtering results in an image where the checkerboard colors vary smoothly across the polygon.

相比之下，线性纹理过滤得到的图像中棋盘的颜色会沿着多边形逐渐改变。

This article detailedly expatiated upon the principles, contents and methods of cropland classification; it analyzed the necessity to combine the work of cropland classification with GIS technology, summarized the attributions of ARC/INFOand some other related softwares; it established the technologic route of cropland classification supported by GIS, by a case study in Liwu Town,Li County Hebei Province, this article expatiated the practicable mechanism of combining the function of ARC/INFO with the work of cropland classification, and put forward some new ideas and approaches of utilizing GIS: this paper put forward the idea of coding the polygons in the basic graphic database such as soil map and land use map according to their attributes, and put forward the detailed coding project; based on the code databases, it expatiated upon the detailed approaches to create single梖actor map and output the final classification map; it put forward the principles and the method of creating classification units in the environment of GIS, that is how to keep the lines of soil polygon, the border of districts and the important objects such as residential areas, banks of rivers and roads ,and how to overlap single梖actor soil map and land use map, and to delete some vector lines of the overlapped map appropriately; it detailed the methods of creating mathematic model of classification coefficients in the environment of computer, and used FOXPRO6.0 programs to realize the automation of calculating coefficients; it represented the method of plotting the final map by overlapping various coverages according to the code tables and lookup tables, the process of outputting the cropland classifying map was finished by program.

本文法对耕地等别划分的原则、内容及方法作了较详细的阐述，介绍了多系数综合修正法的耕地等别计算方法及其具体应用和AHP的确权方法；分析了耕地等别划分工作与地理信息系统技术相结合的必要性，简要介绍了地理信息系统软件ARC／INFO及其他相关软件的功能特点，制定了地理信息系统支持下耕地等别划分的技术路线，通过对河北省蠡县蠡吾镇的实证研究，重点阐述了ARC／INFO及相关数据库软件与耕地等别划分结合的有效机制及GIS应用的一些新思想、新方法：提山了对土壤图和土地利用现状图等基础图形数据库进行特征编码的思想和具体的编码方案，阐述了基于与图形库相链接的特征编码表，单因素图提取、成果图的输出的具体实现方法；提出了GIS环境下耕地单元划分的原则和方法，即在保留土壤因素图斑界线、行政界线和重要地物等的原则下，将土壤单因素图和土地利用现状图进行拓扑叠加，对叠加图中的矢量线进行适当的删除；阐述了在计算机环境下，耕地分等参数计算模型建立的方法，并用FOXPRO6.0语言程序实现了参数计算的自动化；阐述了根据图形库特征编码表和建立绘图符号查找表，按不同图层叠加绘制成果图的方法，该过程用命令程序实现耕地等别图的输出。

We will learn how to adjust the Display Settings and how to use the Diagnostic Shader tools to be able to evaluate the quality and the general surface conditions of the scanned polygon data of a 1:4 size clay model blown up to a full scale size data set.

我们将了解如何调整显示设置，以及如何使用着色的诊断工具，以能够评估的质量和一般的表面条件所扫描的多边形的数据， 1：4尺寸粘土模型，炸毁了一个全面的规模大小数据集。

You should also remember that I was constantly reminding you to define the points of each polygon in a clockwise direction.

您应该还记得，我不断提醒您，确定每个点的多边形在顺时针方向。

In geometry a polygon is traditionally aplane figure that is bounded by a closed path or circuit, composed of a finite sequence of straight line segments.

在几何学中， polygon是一个传统的平面图形由封闭路径及环形，由有限的直线规律地构成。

In this paper, the author has introduced a new volume calculation algorithm for polygon model. The general assumption here is that the model is of closed surface .The algorithm described here is based on Mento Carlo method and has a 3D Widgets interaction style.

本文提出了使用蒙特卡罗算法和3d widget交互工具相结合的方式来计算自封闭多角形网格体积的方法，并且分别给出了该方法在Visual Tool Kit和Microsoft Direct3D的实现方案。

After 7 days, some black, circular RPE cells climbed out slowly. Ten days after, cells became irregular, polygon with monolayer-coalesce in bottle bottom, which symbolized as the typical cobble-stone modality after about 13 days.

结果：组织块1d后贴壁，7d后可见有黑色、圆形的RPE细胞缓慢爬出，10d后细胞变成扁平不规则多角形，约13d后细胞基本单层融合长满瓶底，形成典型的鹅卵石样。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？