stroke-dasharray 不能与 angular 6 绑定

Question

我使用了这个带有 angular 6 的图表，我在这个图表上遇到了一些冲突，我尝试绑定数据，但我不能这样做，它不能正常工作，

这个stroke-dasharray="5, 100"给我换了这个 stroke-dasharray="{{this.master.locationVsStatusMap.size}}, 100"

闪电战

有谁知道如何正确地做到这一点？

提前致谢！

.single-chart {
  width: 33%;
  justify-content: space-around ;
}

.circular-chart {
  display: block;
  margin: 10px auto;
  max-width: 70%;
  max-height: 150px;
}

.circle-bg {
  fill: none;
  stroke: #3c9ee5;
  stroke-width: 3.8;
}

.circle {
  fill: none;
  stroke-width: 3.8;border-right: 1px solid white; border-left: 1px solid white;
  stroke-linecap:square;
  animation: progress 1s ease-out forwards;
}

@keyframes progress {
  0% {
    stroke-dasharray: 0 100;
  }
}

.circular-chart.orange .circle {
  stroke: #ff9f00;border-right: 1px solid white; border-left: 1px solid white;
}

.circular-chart.green .circle {
  stroke: #4CC790;
}

.circular-chart.blue .circle {
  stroke: #3c9ee5;
}

.percentage {
  fill: #666;
  font-family: sans-serif;
  font-size: 0.3em;
  text-anchor: middle;
}
.flex-wrapper {
  display: flex;
  flex-flow: row nowrap;
}

<div class="flex-wrapper">
<div class="single-chart">
  <svg viewBox="0 0 36 36" class="circular-chart orange">
    <path class="circle-bg"
          d="M18 2.0845
          a 15.9155 15.9155 0 0 1 0 31.831
          a 15.9155 15.9155 0 0 1 0 -31.831"
    />
    <path class="circle"
          stroke-dasharray="5, 100"
          d="M18 2.0845
          a 15.9155 15.9155 0 0 1 0 31.831
          a 15.9155 15.9155 0 0 1 0 -31.831"
    />
      <text x="18" y="20.35" class="percentage">50%</text>
  </svg>
</div>
</div>

Answer 1

尝试属性绑定

attr.stroke-dasharray="{{this.master.locationVsStatusMap.size}}, 100"

分叉示例：https ://stackblitz.com/edit/angular-wqjlc5

参考：https : //teropa.info/blog/2016/12/12/graphics-in-angular-2.html