Matlab中的“颤抖"功能如何工作? [英] How does 'quiver' function work in matlab?

问题描述

颤动功能如何工作?我知道它会创建矢量箭头，但是u，v，x和y变量实际上是什么意思?

How does the quiver function work? I know it creates vector arrows but what does u,v,x and y variables actually mean?

• u-x和v-y之间有关系吗?

• Is there a relation between u-x and v-y?

如何确定箭头的实际长度以及它如何影响上述4个变量?

How is the actual length of the arrow determined and how does it affect the 4 variables above?

u，v是否表示'from'，x，y表示'to'，这将在x，y处创建箭头热量，起始位置在u，v?

Does u,v mean 'from' and x,y mean 'to' which will create the arrow heat at x,y with start location at u,v?

推荐答案

x，y是每个向量的原点的水平和垂直坐标.

x, y are the horizontal and vertical coordinates of the origin of each vector.

u，v是每个矢量的水平和垂直分量.因此，向量的长度将为sqrt(u.^2 + v.^2).但是u，v中有一个归一化，因此最大长度是一个不错的值，可以避免一个向量与另一个向量重叠(或进入另一个向量的区域").

u, v are the horizontal and vertical components of each vector. Thus the length of the vectors would be sqrt(u.^2 + v.^2). But there's a normalization in u, v so that maximum length is a nice value that avoids one vector overlapping (or getting into the "area" of) another vector.

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