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.

Explore the world of textured and layered abstract art with this step-by-step tutorial showcasing three innovative projects. Learn how to use modeling paste, acrylic paints, and stencils to create ...

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。