JavaScript html5库的相关内容

文章 2022-09-15 来自：开发者社区

前端可视化：Fabric.js HTML5 canvas 工具库(4)

缩放和平移画布缩放画布以原点为基准缩放画布// 监听鼠标滚轮事件 canvas.on('mouse:wheel', opt => { let delta = opt.e.deltaY // 滚轮向上滚一下是 -100，向下滚一下是 100 let zoom = canvas.getZoom() // 获取画布当前缩放值 // 控制缩放范围在 0.01~20 的区...

文章 2022-09-15 来自：开发者社区

前端可视化：Fabric.js HTML5 canvas 工具库(3)

转换旋转角度 anglelet triangle = new fabric.Triangle({ top: 100, left: 100, width: 80, height: 100, fill: 'blue', angle: 30 // 旋转30度 }) 缩放 scaleX 和 scaleY let triangle = new fabri...

文章 2022-09-15 来自：开发者社区

前端可视化：Fabric.js HTML5 canvas 工具库(2)

绘制路径// 绘制路径 const path = new fabric.Path('M 0 0 L 200 100 L 170 200 z') path.set({ top: 50, // 距离容器顶部距离 50px left: 50, // 距离容器左侧距离 50px fill: 'hotpink', // 填充亮粉色 opacity: 0.5, // 不透明...

文章 2022-09-15 来自：开发者社区

前端可视化：Fabric.js HTML5 canvas 工具库(1)

Fabric.js 是一个功能强大且操作简单的 Javascript HTML5 canvas 工具库。文档：官网：http://fabricjs.com/github: https://github.com/fabricjs/fabric.js安装基本示例创建容器<canvas id="canvas" width="400" height="400" style="bor...

文章 2022-02-16 来自：开发者社区

Waud.js – 使用HTML5降级处理的Web音频库

　　Waud.js 是一个Web音频库，有一个HTML5音频降级处理方案。它允许您利用Web音频API为你的Web应用程序控制音频功能。在不支持Web音频API的非现代浏览器使用HTML5音频降级方案。立即去试试　您可能感兴趣的相关文章网站开发中很有用的 jQuery 效果【附源码】分享35个让人惊讶的 CSS3 动画效果演示十分惊艳的8个 ...

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