您也可以使用过滤器执行此操作。这是一个动画填充：
<svg height="210" width="500"> <defs> <filter id="fillpartial" primitiveUnits="objectBoundingBox" x="0%" y="0%" width="100%" height="100%"> <feFlood x="0%" y="0%" width="100%" height="100%" flood-color="red" /> <feOffset dy="0.5"> <animate attributeName="dy" from="1" to=".5" dur="3s" /> </feOffset> <feComposite operator="in" in2="SourceGraphic" /> <feComposite operator="over" in2="SourceGraphic" /> </filter> </defs> <polygon filter="url(#fillpartial)" points="165.000, 185.000, 188.511, 197.361, 184.021, 171.180, 203.042, 152.639, 176.756, 148.820, 165.000, 125.000, 153.244, 148.820, 126.958, 152.639, 145.979, 171.180, 141.489, 197.361, 165.000, 185.000" /></svg>
