SAX
Simple API for XML
viewBox
(minX, minY, width, height) 用来决定在整个坐标系空间中用于展示的取景范围, 其余部分会被隐藏.
width, height 设定将取景框缩放到 html 展示的大小, 不会影响有哪些内容不被展示.
Tag
clipPath
裁剪框，将定义的 path 以外的元素裁切掉
Path
- M = move to
- L = line to
- H = horizontal line to
- V = vertical line to
- C = curve to
- S = smooth curve to
- Q = quadratic Bézier curve
- T = smooth quadratic Bézier curve to
- A = elliptical Arc
- Z = close path
大写：绝对路径 小写：相对路径
实用工具：svgpatheditor