circumscribed figure

In this paper, we mainly discuss the properties of continuous function on connected domain, we discuss the regular circumscribied polygons of closed convex curve and space convex body, and obtain some interesting results.

讨论了连通域上连续函数的性质及封闭凸曲线及空间凸体的外切正方形 ,得到了一些有用的结果。

Using the method of directed distances,we make a deep research on conic circumscribed polygons,Several fixed value theorems for directed distances in conic circumscribed polygons are obtained,and two mistaken results in a reference are corrected.

文章利用有向距离方法,对二次曲线外切多角形进行研究,得到二次曲线外切多角形中有向距离的几个定理,并指正了有关文献中的错误结论。

Some proposition of the polygon which is inscribed and circumscribed;

关于一类内嵌外切多边形的几个命题

On Some Fixed Value Theorems for Directed Areas in Elliptic Circumscribed Polygons and Their Applications

椭圆类二次曲线外切多边形中有向面积的定值定理及其应用

Extremal properties on inscribed (circumscribed) polygons of a circle;

圆内接(外切)多边形面积的极值性质

Area Formula of the Polygon of Inscribed or Circumscribed Ellipse;

椭圆内接(外切)多边形的面积公式

Closed Adjustable Spline Curve with Given Tangent Polygon

与给定多边形相切的可调闭样条曲线

A Class of Spline Curve with Given Tangent Polygon

一类带有给定切线多边形的样条曲线

A PLANE PARAMETRIC CUBIC CURVE THAT CONTACTS THE SECOND EDGE OF THE CHARACTERISTIC POLYGON

与特征多边形第二边相切的平面参数三次曲线

Shape Preserving Parametric Spline Curve with Given Tangent Polygon;

与给定多边形相切的保形参数样条曲线

The Affine Equivalence Problems about the Oval and Its Inscribed and Externally Tangent Polygon;

论椭圆及其内接、外切n边形的仿射等价问题

A Study on Affine Equipollence Problem of HexagonInscribed and Circumscribedin an Ellipse;

论椭圆及其内接、外切六边形的仿射等价问题

Next, by extracting convex polygons consecutively, the noconvex polygon is described as topological structure made of convex polygons at defferent layers.

通过依次抽取外接凸多边形,将凹多边形表达为仅由凸多边形组成的多层拓扑结构。

Ptolemy's Theorem and the Nature of the Regular Polygon Circle

托勒密定理与正多边形外接圆的性质

An Extension of the Cubic B-Spline Curve with Given Tangent Polygon

带有给定切线多边形的三次B样条曲线的扩展

G~2 continuous closed generalized Ball curves with a given tangent polygon

与给定多边形相切的G~2连续的广义Ball闭曲线

A Class of Trigonometric Spline Curve with Shape Parameter and Given Tangent Polygon

与给定多边形相切的一类含参数三角样条曲线

G~2-CONTINUOUS CONIC SPLINE CURVE WITH GIVEN TANGENT POLYGON

与给定切线多边形相切的G~2-连续的二次代数曲线

On Some Fixed Value Theorems of Directed Distance for Conic Sections

二次曲线外切多角形中有向距离的定值定理

NURBS to Polygons

NURBS转化为多边形