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。

In the cold days of December, as Yerevan was wrapped in winter’s breath, young artist Davit Minasyan created a true island of ...

Agentic Vision combines visual reasoning with code execution to ground answers in visual evidence, delivering a 5% to 10% ...

High scalability. Users can freely organize content structures in a non-linear fashion. Zooming. Emulates the "zoom in" to get an overview and "zoom out" to observe details as in the real world.

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

These tags add menus, toggles, media, forms, and responsive images with minimal code.

In this energisingly original novel, an emotionally detached English student at college in New York tells a big lie Lies offend our sense of justice: generally, we want to see the liar unmasked and ...

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

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 ...

Qwen3-Max-Thinking 的推出代表着 2026 年人工智能市场的成熟。它将讨论的焦点从谁拥有最智能的聊天机器人转移到谁拥有功能最强大的智能体。通过将高效率推理能力与自适应、自主的工具调用机制相结合，Qwen 已经牢牢确立了自己在企业级 ...

National Chocolate Cake Day on Jan. 27 is an open invitation to bend the rules and make a classic cake even more irresistible ...

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