This is a straightlinecutting 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。
2
Chalk line: Use it to snap straight guidelines for cutting plywood or laying floor tile.
粉笔线：准则切割胶合板或铺设地板砖用它来来划线。(不知道这个翻译是不是准确！)
3
If you took the sun away, it would be like cutting the string that provides the pull and in that case what you would see is that the planets would just take off along a straightline.