One is applicable to the rectangular coordinates, and the other to the spherical coordinates.

其中一个适用于直角坐标，一个适用于球面坐标。

The equations are written in rectangular coordinates.

这些方程是在直角座标系中写出的。

This is a straight line cutting code, simple and easy. their input and can cut the rectangular coordinates and linear coordinates.

这是一个实现直线裁剪的代码，简单好用，并能自己输入裁剪矩形的坐标和直线的坐标。