Closed Adjustable Spline Curve with Given Tangent Polygon 与给定多边形相切的可调闭样条曲线
If the last vertex is identical to the first vertex, it is a closed form and the polyline forms a polygon. 如果最后的顶点与最初的顶点重合,它就是闭合的,也就形成了一个多边形。
A closed shape preserving rational cubic B-spline curve with given tangent polygon is presented and part of its weight factors can be given by choosing the positions of the contact points. 本文给出了带有给定切线多边形的保形有理三次B样条曲线,其部分权因子可通过选取切点的位置来确定。
A lot of experiments for open loop control and closed loop control have been made according to the polygon voltage vector control. The experiment result shows that the new scheme is feasible. 对于采用多边形电压矢量新方案,我们分别进行了大量的开环及速度闭环实验,实验结果表明本控制方案是可行的。
A Distilling Means of the Closed Convex Polygon Image in the Automatic Seal Identifying System 印鉴自动识别系统中封闭凸多边形图像的提取
Both of them take the following as their initial steps: transforming random planar closed curve into approximation polygon; performing Constrained Delaunay Triangulation on approximation polygon; extracting skeleton of the approximation polygon. 这两种方法都是首先将平面任意闭合图形边界转化为逼近多边形;对其进行约束Delaunay三角剖分;提取骨架线。