Example
<svg width="600px" height="600px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<polyline points="10,10,50,40,80,30,120,90,130,10,180,50,250,100,300,10" fill="none" stroke="red" stroke-width="10" />
<text x="320" y="20">Default drawing stroke</text>
<g transform="translate(0,150)">
<polyline points="10,10,50,40,80,30,120,90,130,10,180,50,250,100,300,10" fill="none" stroke="red" stroke-width="10" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="2"/>
<text x="320" y="20">stroke-linecap="butt" (default)</text>
<text x="320" y="40">stroke-linejoin="miter"(default)</text>
<text x="320" y="60">stroke-miterlimit="2"</text>
</g>
<g transform="translate(0,300)">
<polyline points="10,10,50,40,80,30,120,90,130,10,180,50,250,100,300,10" fill="none" stroke="red" stroke-width="10" stroke-linecap="round" stroke-linejoin="round" />
<text x="320" y="20">stroke-linecap="round" </text>
<text x="320" y="40">stroke-linejoin="round" </text>
</g>
<g transform="translate(0,450)">
<polyline points="10,10,50,40,80,30,120,90,130,10,180,50,250,100,300,10" fill="none" stroke="red" stroke-width="10" stroke-linecap="square" stroke-linejoin="bevel"/>
<text x="320" y="20">stroke-linecap="square"</text>
<text x="320" y="40">stroke-linejoin="bevel"</text>
</g>
</svg>
Result
