vue中使用词云图的实现示例

Tina ·

更新时间:2024-09-21

· 1204 次阅读

在vue中, 查找到有两种方法来实现词云图, 分别是echarts 和 highcharts

Echarts:

注意,wordcloud对应的echarts版本有要求:echarts-wordcloud@2 is for echarts@5 echarts-wordcloud@1 is for echarts@4

需要下载echartsjs 和 wordcloud, 全局注册引用echarts

npm install echarts@5
npm install echarts-wordcloud@2

<div class="cloud-wrap">
    <div ref="cloudEl" class="cloud-box"></div>
</div>
<style>
.cloud-wrap {
    width: 100%;
    height: 100%;
}
 .cloud-box {
     width: 100%;
     height: 100%;
 }
</style>
<script>
import wordcloud from 'echarts-wordcloud';
export default {
data() {
return {
words:[{
id:1,
content:'name'
}],
bgImg:'base64格式, 底色为白色', 
}
},
mounted() {
      this.drawCloud(this.$refs.cloudEl, this.words);
  },
  methods:{
  drawCloud(wrapEl, data) {
        // let maskImage = new Image(); //可以根据图片形状生成有形状的词云图
        // maskImage.src= this.bgImg;
        let list = this.wordCloudData.map((item) => ({
            name: item.content,
            value: item.id
        }))
        if(list.length == 0){
            list = [{name:'无',value:50}]
        }
        let myChart = echarts.init(wrapEl);
        let option = 
        {
            tooltip: {
                show: true,
            },
            // backgroundColor:'#fff', // 画布背景色
            series: [
            {
                name: "热词",
                type: "wordCloud",
                // maskImage: maskImage, // 图片形状
                keepAspect: false,
                sizeRange: [10, 40], //画布范围，如果设置太大会出现少词（溢出屏幕）
                rotationRange: [0, 0], //数据翻转范围
                // shape: "circle",
                // drawOutOfBound: true, // 超出画布的词汇是否隐藏
                drawOutOfBound: false,
                color:"#fff",
                left: "center",
                top: "center",
                right: null,
                bottom: null,
                // width: "100%",
                height: "100%",
                gridSize: 8,
                textPadding: 10,
                autoSize: {
                    enable: true,
                    minSize: 6,
                },
                textStyle: {
                    normal: {
                        fontFamily: 'sans-serif',
                        fontWeight: 'bold',
                        color:"#333", // 字体颜色
                        // color: function () { // 字体颜色
                        //     return 'rgb(' + [
                        //         Math.round(Math.random() * 160),
                        //         Math.round(Math.random() * 160),
                        //         Math.round(Math.random() * 160)
                        //     ].join(',') + ')';
                        // },
                    },
                    emphasis: {
                        // focus: 'self',
                        textStyle:{
                            shadowBlur: 10,
                            shadowColor: "#333",
                        }
                    },
                },
                data: list,
            },
            ],
        };
        // maskImage.onload = function() {
            myChart.setOption(option, true)
        // };
    },
  }
}
</script>

无遮罩层的词云图↑

有遮罩层的词云图↑

Highcharts

下载包

npm install highcharts@7.2.1

<div class="cloud-wrap">
    <div id="container" style="width: 100%;height: 100%;"></div>
</div>
<style>
// 同上
</style>
<script>
import Highcharts from 'highcharts'
export default {
data() {
return {
words:[{
id:1,
content:'name'
}],
}
},
mounted() {
      this.dealData();
  },
  methods:{
    dealData(){
        let data = this.words.map((item,index) => ({
            name: item.content,
            value: item.id,
            //weight: Math.floor(Math.random()*3+1)
            //控制加粗,随机数取1~3, 若需要按照接口返回的顺序, 可不随机
            weight: item.id*100 
        }))
        this.drawPic(data)
    },
    drawPic(data){
        Highcharts.chart('container', {
            //highcharts logo
            credits: { enabled: false },
            //导出
            exporting: { enabled: false },
            //提示关闭
            tooltip: { enabled: false },
            //颜色配置
            colors:[
                '#ffffff'
                // ,'#00c0d7','#2594ce','#de4c85',
                // '#ff7f46','#ffb310','#e25c52'
            ],
            //图形配置
            chart: {
                // spacingBottom: 15,
                // spacingTop: 12,
                spacingLeft: 5,
                spacingRight: 5,
                backgroundColor: "rgba(255, 255, 255,0)",
            },
            series: [{
                type: "wordcloud",// 类型
                data: data,
                rotation: 90,//字体不旋转
                maxFontSize: 40,//最大字体
                minFontSize: 14,//最小字体
                style: {
                    fontFamily: "sans-serif",
                    fontWeight: '500'
                }
            }],
        });
    },
  }
}
</script>