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vue实现文字云

2026-01-19 05:52:07VUE

Vue 实现文字云

安装依赖

需要安装 wordcloud 或 echarts-wordcloud 插件，推荐使用 echarts-wordcloud，因为它基于 ECharts，功能更强大且易于集成。

npm install echarts echarts-wordcloud

基础实现

在 Vue 组件中引入 ECharts 和 WordCloud 扩展，创建一个文字云图表。

<template>
  <div ref="wordcloudChart" style="width: 600px; height: 400px;"></div>
</template>

<script>
import * as echarts from 'echarts';
import 'echarts-wordcloud';

export default {
  mounted() {
    this.initWordCloud();
  },
  methods: {
    initWordCloud() {
      const chart = echarts.init(this.$refs.wordcloudChart);
      const option = {
        series: [{
          type: 'wordCloud',
          shape: 'circle',
          left: 'center',
          top: 'center',
          width: '80%',
          height: '80%',
          right: null,
          bottom: null,
          sizeRange: [12, 60],
          rotationRange: [-45, 45],
          rotationStep: 15,
          gridSize: 8,
          drawOutOfBound: false,
          textStyle: {
            fontFamily: 'sans-serif',
            fontWeight: 'bold',
            color: function () {
              return 'rgb(' + [
                Math.round(Math.random() * 160 + 95),
                Math.round(Math.random() * 160 + 95),
                Math.round(Math.random() * 160 + 95)
              ].join(',') + ')';
            }
          },
          data: [
            { value: 90, name: 'Vue' },
            { value: 80, name: 'React' },
            { value: 70, name: 'JavaScript' },
            { value: 60, name: 'TypeScript' },
            { value: 50, name: 'HTML' },
            { value: 40, name: 'CSS' },
            { value: 30, name: 'Node.js' },
            { value: 20, name: 'Webpack' }
          ]
        }]
      };
      chart.setOption(option);
      window.addEventListener('resize', chart.resize);
    }
  }
};
</script>

动态数据绑定

可以通过 props 或 API 请求动态加载数据。

<script>
export default {
  props: {
    wordData: {
      type: Array,
      default: () => []
    }
  },
  watch: {
    wordData: {
      handler(newVal) {
        if (newVal.length) {
          this.updateWordCloud(newVal);
        }
      },
      immediate: true
    }
  },
  methods: {
    updateWordCloud(data) {
      const chart = echarts.init(this.$refs.wordcloudChart);
      chart.setOption({
        series: [{
          type: 'wordCloud',
          data: data
        }]
      });
    }
  }
};
</script>

自定义样式与交互

可以调整文字云的形状、颜色和添加点击事件。

<script>
methods: {
  initWordCloud() {
    const chart = echarts.init(this.$refs.wordcloudChart);
    chart.on('click', (params) => {
      console.log('点击了:', params.name);
    });
    chart.setOption({
      series: [{
        type: 'wordCloud',
        shape: 'diamond',
        textStyle: {
          color: function (params) {
            const colors = ['#c23531', '#2f4554', '#61a0a8', '#d48265'];
            return colors[params.dataIndex % colors.length];
          }
        }
      }]
    });
  }
}
</script>

响应式调整

在窗口大小变化时重新渲染文字云。

<script>
mounted() {
  this.initWordCloud();
  window.addEventListener('resize', this.handleResize);
},
beforeDestroy() {
  window.removeEventListener('resize', this.handleResize);
},
methods: {
  handleResize() {
    if (this.$refs.wordcloudChart) {
      echarts.init(this.$refs.wordcloudChart).resize();
    }
  }
}
</script>