核心架构请查阅 canvas-select 组件，一个用于图片标注的 javascript 库，基于 canvas，简单轻量，支持矩形、多边形、点、折线、圆形标注、网格标注。 使用离屏 canvas 绘制静态背景图片，避免频繁绘制。 避免浮点数运算，使用 Math.round()或 Math.floor()进行取整。

Safari Technology Preview 235 版本包含了针对 CSS、Canvas、剪贴板、HTML、JavaScript 以及 MathML 等核心技术的修正与优化。 此外，该版本也对媒体处理、网络功能、转译表现、Web ...

Apple today released a new update for Safari Technology Preview, the experimental browser that was first introduced in March ...

The Frist Art Museum presents The Impressionist Revolution: Monet to Matisse from the Dallas Museum of Art, an exhibition ...

Security camera footage shows Maria climbing into the hammock for a nap, with Gabriel joining her carrying a case of felt-tip ...

Yerba Buena Illuminated builds on the success of the annual Christmastime extravaganza Let's Glow San Francisco.

Find the latest information & technology news, views and updates from all top sources for the Indian IT industry.

The answer is much twistier than you’d imagine. They say that behind every great man is a woman, and it’s usually true.

On the film side, big winners included One Battle After Another, Hamnet, Timothée Chalamet, Teyana Taylor and KPop Demon ...

Looking for easy Valentines painting ideas? Find simple paint night projects for friends that double as cute home decor & ...

【CNMO科技消息】近日，苹果公司发布了Safari Technology Preview浏览器的第235号更新。作为自2016年3月推出的实验性浏览器，Safari Technology ...

New Year’s resolutions are often easy to make but hard to keep. To overcome that challenge, it can help ...