<path> 元素
定義:定義一个路径
下面的命令可用于路径数据:
- M = moveto
- L = lineto
- H = horizontal lineto
- V = vertical lineto
- C = curveto
- S = smooth curveto
- Q = quadratic Bézier curve
- T = smooth quadratic Bézier curveto
- A = elliptical Arc
- Z = closepath
注意:以上所有命令均允许小写字母。大写表示绝对定位,小写表示相对定位。
栗子一:直角3角型
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="1000px" height="600px">
<path d="M200 0 L0 200 H200 Z"/>
</svg>
結果:
栗子二:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="1000px" height="400px">
<path id="lineAB" d="M 100 350 l 150 -300" stroke="red"
stroke-width="3" fill="none" />
<path id="lineBC" d="M 250 50 l 150 300" stroke="red"
stroke-width="3" fill="none" />
<path d="M 175 200 l 150 0" stroke="green" stroke-width="3"
fill="none" />
<path d="M 100 350 q 150 -300 300 0" stroke="blue"
stroke-width="5" fill="none" />
<!-- Mark relevant points -->
<g stroke="black" stroke-width="3" fill="black">
<circle id="pointA" cx="100" cy="350" r="3" />
<circle id="pointB" cx="250" cy="50" r="3" />
<circle id="pointC" cx="400" cy="350" r="3" />
</g>
<!-- Label the points -->
<g font-size="30" font="sans-serif" fill="black" stroke="none"
text-anchor="middle">
<text x="100" y="350" dx="-30">A</text>
<text x="250" y="50" dy="-10">B</text>
<text x="400" y="350" dx="30">C</text>
</g>
</svg>
結果:
說明:
<path id="lineAB" d="M 100 350 l 150 -300" stroke="red" stroke-width="3" fill="none" />
中的M 100 350為開始x為100,y軸為350,然後畫直線 l X為150y為 -300;
<path d="M 100 350 q 150 -300 300 0" stroke="blue" stroke-width="5" fill="none" />
中的M 100 350 q 150 -300 300 0為開始x為100,y為350;然後畫一個曲線用q,x為150,y為-300;結束為x為300,y為0