Ray 射线

Struct

Representation of rays.

表示射线。

A ray is an infinite line starting at origin and going in some direction.

射线是一个无穷的线，开始于origin并沿着direction方向。

Variables变量

• origin
  The origin point of the ray.
  射线的起点
• direction
  The direction of the ray.
  射线的方向

Constructors构造器

• Ray
  Creates a ray starting at origin along direction.
  创建一个新的射线，开始于origin沿着direction的方向。

Functions函数

• GetPoint
  Returns a point at distance units along the ray.
  返回沿着射线在distance距离单位的点。
• ToString
  Returns a nicely formatted string for this ray.
  返回该光线格式化好的字符串