@/pkg/helper-geometry

几何算法辅助

参考：

| lib | npm | git | 说明 | | --- | --- | --- | --- | | @turf/turf | npm | git | A modular geospatial engine written in JavaScript | | @mathigon/euclid | npm | git | A Typescript library for 2D geometry | | 2d-geometry | npm | git | A fork of flatten-js focused on performance, ergonomics and Typescript | | flatten-js | npm | git | A Javascript library for 2d geometry | | @markroland/path-helper | npm | git | A variety of methods to assist with performing operations on multi-point paths (polylines) |

各模块说明

保证 src/helper 下各模块依赖关系为下方依赖上方，避免循环依赖：

• base 基础，获取形状原信息
• angle 角
• comparison 比较
• relation 关系
• transform 变化（选择、移动等）
• mutation 修改
• slicing 切割
• justify 矫正
• misc 杂项