主要用于记录开发过程中的一些积累,封装一些常用工具
大多数涂鸦都是用一次或二次贝塞尔曲线实现的,并通过drawRect或者shapeLayer绘制,无法实现笔锋效果,而OpenGL ES有太复杂,所以自己参考了很多代码库,用二次贝塞尔曲线算法取点,根据速度计算点的大小,最终通过画椭圆的方式,实现笔锋, 效果图下:
记录日常开发积累,具体如下:聊天气泡框,二次贝塞尔曲线算法涂鸦笔锋封装
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.