在Vue项目中使用d3.js的实例代码

npm install d3 --save-dev

<script>
import * as d3 from 'd3';
const data = [99, 71, 78, 25, 36, 92];
export default {
 name: 'non-vue-line-chart',
 template: '<div></div>',
 mounted() {
  const svg = d3.select(this.$el)
   .append('svg')
   .attr('width', 500)
   .attr('height', 270)
   .append('g')
   .attr('transform', 'translate(0, 10)');
  const x = d3.scaleLinear().range([0, 430]);
  const y = d3.scaleLinear().range([210, 0]);
  d3.axisLeft().scale(x);
  d3.axisTop().scale(y);
  x.domain(d3.extent(data, (d, i) => i));
  y.domain([0, d3.max(data, d => d)]);
  const createPath = d3.line()
   .x((d, i) => x(i))
   .y(d => y(d));
  svg.append('path').attr('d', createPath(data));
 },
};
</script>
<style lang="sass">
svg
 margin: 25px;
 path
  fill: none
  stroke: #76BF8A
  stroke-width: 3px
</style>

<template>
 <svg width="500" height="270">
  <g style="transform: translate(0, 10px)">
   <path :d="line" />
  </g>
 </svg>
</template>
<script>
import * as d3 from 'd3';
export default {
 name: 'vue-line-chart',
 data() {
  return {
   data: [99, 71, 78, 25, 36, 92],
   line: '',
  };
 },
 mounted() {
  this.calculatePath();
 },
 methods: {
  getScales() {
   const x = d3.scaleTime().range([0, 430]);
   const y = d3.scaleLinear().range([210, 0]);
   d3.axisLeft().scale(x);
   d3.axisBottom().scale(y);
   x.domain(d3.extent(this.data, (d, i) => i));
   y.domain([0, d3.max(this.data, d => d)]);
   return { x, y };
  },
  calculatePath() {
   const scale = this.getScales();
   const path = d3.line()
    .x((d, i) => scale.x(i))
    .y(d => scale.y(d));
   this.line = path(this.data);
  },
 },
};
</script>
<style lang="sass" scoped>
svg
 margin: 25px;
path
 fill: none
 stroke: #76BF8A
 stroke-width: 3px
</style>