智能向量

在计算机图形学中,向量是一种基本要素．三维向量经投影后可变换为二维向量．在图样画法中,直线被表达为向量,若已知线段的两个端点坐标,就是已知向量．因此在众多算法中,都是以向量为基础的．本文提出的“智能向量”的概念是一种基于二维向量的具有自判结构的数学模型．当计算机读入向量的始点终点坐标后,该向量即具有“智能”,便可自动进行诸如分析向量间相对位置、判断它们在向量内是否相交、获取交点及对其进行取舍等几何判断,由此而推出新的算法与应用．

INTELLIGENT VECTOR

n Computer Graphics,vector is a hasic element.Three-dimensional vectors can be transformated into two-dimensional ones after being projected.If the two end points of a wement is known,it means that a vector is known in drawing graphics expressed by lines.So many calculation is based on vectors. The concept of "intelligent vector" called in this paper is a kind of mathematics model which has the structUre of self-selection based on a two-dimensional vector. When a computer reads the coordinate value of start and end point of a vector,the vector has "intelligence", it can do geometric calculation automatically.Being able to analyze the relative position of other vectors, judge whether they.intersect in the vector, gum the intersected points and select them,the intelligent verctor gives rise to new sheering calculation and applications.