感谢开源社区

好的工具，建立在共同的工作之上。

YiMap Android 使用 MapLibre Native 作为地图组件，并使用 ACadSharp、SkiaSharp、PROJ 等开源项目处理和显示空间数据。相关许可证随客户端分发。

• MapLibre Native · 地图显示
• ACadSharp · CAD 文件处理
• SkiaSharp · 图形渲染
• PROJ · 坐标转换

标绘算法 · ol-plot

扩展标绘的几何算法移植自 sakitam-fdd / ol-plot，采用 MIT 许可证。Android 端以 Kotlin 原生实现，并对控制点数量、输出顶点数量及退化输入增加限制。参考版本：c919e60b4edeaeca53c08f9552f793b2ae9537f0。

The MIT License (MIT)

Copyright (c) 2017 sakitam-fdd

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.