封闭多边形

Force NB form of a balanced force system.

系。 由平衡的几何条件，力多边形封闭，故

A closed curve is a path that repeats itself, and thus encloses one or more regions. Simple examples include circles, ellipses, and polygons .

封闭曲线的路径是循环的，包围一个或更多区域，简单的例子如圆、椭圆、多边形。

A closed curve is a path that repeats itself, and thus enclose s one or more regions. Simple examples include circles, ellipses, and polygons.

封闭曲线的路径是循环的，包围一个或更多区域，简单的例子如圆、椭圆、多边形。

First,the envelope rectangles set was obtained by equiangular rotation the initial envelope rectangle, and the periphery polygon was constructed by calculating the intersection points between the corresponding edges of the envelope rectangles set.

首先利用等角度旋转方法求得封闭曲线的包络矩形集，利用矩形集对应边的交点得到曲线的外包多边形。

A simple graphical algorithm, first draw a polygon, resulting in a closed region, then select the color, to fill the region.

详细说明：一个简单的图形算法，先画一个多边形，产生封闭的区域，然后选择颜色，把这个区域填充。

Vector to raster: Inside point diffuse method, diffuse from internal seeds within polygon to neighbor points, as far as to the boundary of polygon; Pluralism integral arithmetic, according to the close boundary of polygon, makes uncertain point calculate pluralism integral; Radial and scanning arithmetic, from a uncertain point which located outside of the figure to draw radial, according to the junction of radial and polygon to judge the internal and outside relationship; Boundary algebra filling, a vector convert to raster arithmetic which based on integral thought, suit for polygon vector convert which recorded topological relationship.

矢量转栅格：内部点扩散法，即由多边形内部种子点向周围邻点扩散，直至到达各边界为止；复数积分算法，即由待判别点对多边形的封闭边界计算复数积分，来判断两者关系；射线算法和扫描算法，即由图外某点向待判点引射线，通过射线与多边形边界交点数来判断内外关系；边界代数算法，是一种基于积分思想的矢量转栅格算法，适合于记

Lines are treated the same way as outlines of closed shapes, such as ellipses and polygons.

线路已经处理过同样的轮廓封闭的外形，如椭圆和多边形。

The intermediate frequency elbow piece formation technology basic technological process is: First welds a lateral section is the polygon many leng link shell or both sides seal many leng fan-shaped shells, after the interior flushes the full pressure medium, the serve intrinsic pressure, under the intrinsic pressure function the lateral section by the polygon gradually changes a full circle, ends in a circular link shell.

中频弯管成型技术基本工艺过程是：首先焊接一个横截面为多边形的多棱环壳或两端封闭的多棱扇形壳，内部冲满压力介质后，施以内压，在内压作用下横截面由多边形逐渐变成圆，最终成为一个圆形环壳。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。