echarts的横向柱状图文字省略，鼠标移入显示内容 vue3-编程知识

效果图
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文字省略

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提示

如果是在x轴上的，就在x轴上添加triggerEvent: true,如果是y轴就在y轴添加，我是在y轴上添加的

并且自定义的方法（我取名为extension）

// echarts 横向省略文字 鼠标移入显示内容
export const extension = chart => {// 注意这里，是以y轴显示内容过长为例，如果是x轴的话，需要把params.componentType == 'yAxis'改为xAxis// 判断是否创建过div框,如果创建过就不再创建了// 该div用来盛放文本显示内容的，方便对其悬浮位置进行处理let elementDiv = document.getElementById("extension");if (!elementDiv) {let div = document.createElement("div");div.setAttribute("id", "extension");div.style.display = "block";document.querySelector("html").appendChild(div);}chart.on("mouseover", function (params) {console.log(params, "鼠标移入");if (params.componentType == "yAxis") {let elementDiv = document.querySelector("#extension");//设置悬浮文本的位置以及样式let elementStyle ="position: absolute;z-index: 99999;color: #fff;font-size: 12px;padding: 5px;display: inline;border-radius: 4px;background-color: #303133;box-shadow: rgba(0, 0, 0, 0.3) 2px 2px 8px";elementDiv.style.cssText = elementStyle;elementDiv.innerHTML = params.value;document.querySelector("html").onmousemove = function (event) {let elementDiv = document.querySelector("#extension");let xx = event.pageX - 10;let yy = event.pageY + 15;console.log("22", xx);elementDiv.style.top = yy + "px";elementDiv.style.left = xx + "px";};}});chart.on("mouseout", function (params) {//注意这里，我是以y轴显示内容过长为例，如果是x轴的话，需要改为xAxisif (params.componentType == "yAxis") {let elementDiv = document.querySelector("#extension");elementDiv.style.cssText = "display:none";}});
};

然后我放在末尾引入的
在这里插入图片描述

整体代码代码

我是父传子的方法，val是传递过来的数据，数据格式我放在后文展示

const init = val => {let chartDom = highStandardBar.value;let myChart = echarts.init(chartDom);let dataBg = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1];// const myColor = ["#1edcaa", "#1ea5f5"].reverse();let option = {grid: {left: "15%",top: 15,bottom: 0,right: "25%"// containLabel: true},xAxis: [{type: "value",show: false},{type: "value",show: false}],yAxis: [{type: "category",inverse: true,// 触发方法triggerEvent: true,axisLabel: {show: true,margin: 2,interval: 0,// 当文字超过四个字后显示省略formatter: function (value) {if (value.length > 4) {return value.substr(0, 4) + "...";} else {return value;}},textStyle: {color: "#fff",fontSize: 12}// 调整左侧文字的3个属性，缺一不可// verticalAlign: "bottom",// align: "top",// //调整文字上右下左// padding: [10, 0, 10, 0]},splitLine: {show: false},axisTick: {show: false},axisLine: {show: false},data: val.Ydata},{type: "category",inverse: true,axisTick: "none",axisLine: "none",show: true,axisLabel: {textStyle: {color: "#b68c3a",fontSize: 14},formatter: function (value) {return "{value|" + (value / 10000).toFixed(1) + "}{unit| 万亩}";},rich: {value: {color: "#E9AA3E",fontSize: 14,fontFamily: "D-DIN-Bold"},unit: {color: "#FFF"}}},data: val.Xdata}],series: [{name: "进度部分",type: "bar",zlevel: 1,itemStyle: {borderRadius: 3,color: () => {// let num = myColor.length;return {type: "linear",x: 0,y: 0,x2: 1,y2: 1,colorStops: [{offset: 0,color: "#445555"},{offset: 1,color: "#08faf2"}]};}},barWidth: 5,barGap: "0%",data: val.Xdata},{name: "背景部分",type: "bar",xAxisIndex: 1,barWidth: 5,barGap: "-100%",data: dataBg,itemStyle: {normal: {color: "#D0DEEE",opacity: 0.1}}},// 进度条的小圆圈{name: "小圈圈",type: "scatter",emphasis: {scale: false},symbol:"image://data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAeCAYAAAA7MK6iAAAAAXNSR0IArs4c6QAACCpJREFUSEuFl+uPXVUZxn/rus9lru200zt2SrEJjQSlDWAipv2AGtQYouGDJhpDofgnmNhTv/pFjAItaGL8QtRojCbEaJXEBKUU4YNtKNCW0tqm6XRmembOZe91M2vP9AKWspJ9zsneZ69nvc9a7/M+r+BjRkpJ3HcYfRHGo2BaSFaX0DJgiAgnqbSkKyLdpmL2vW9zKQEizytE/nnLUT//4EiCBEnA3R3MwnpmnGZrCpj8PwWE/HFthGs3l28k6JM4r5ucu/Qt+jcji5sW8n/AnU6SnQOw5hlmMGyXAusDSMEVZZgLA+baLYbvnaWfgTasRzvPWDKMkdiYJGMikWJkkAQn557gnOgg6JBSyiQss1ADZzqFyN9wEMTTz7JTSrZiQQbmUuTdEcu8n0fE9vI7Nw/ZI7EJdI/Ugwk822NktRBElTiz/yLHOwdI+c1r4CuTLNPbOYj42SbuiYktIhGs4h0rOVtVSOeRl5cQq5ori+0jmARR5jdhboIwnVk/TbJ3EKvIHZXnziTRInJu9iJvpgP1DtZ7fyPig4jJ9dxtJTNJMhAVbyrJUmgi3AIqBmRMyGQRowaxCLTL5UX0JFFOEicrUneRaCYIZpa4MMFIK3FviDR15PT+fRzv1CHWVCfR6SB+PMVmbbmHQBwWvDrm6FUaFTwy9FAtjYoRWShU0ojBCtfCk5pA2SDIAVG3CL1A0J5gNDEa2t6xG4GSieNPXeRMpyNiDTz9I1p+nAcQtIXjrcYU75eXUe0W2vVQzqOjQkWJKgpkf4BsKMQQaGTQSGgZkoyEqsSbSXxvjmA24ovzhDjOljKyQwbcFsFfju3DC1ISU7/gruTYIRVzxSLHygLlNco7dENggkVHgRoBM4zI5FBJIawF54j5EMlEqIE1XoMzFt8f4m0T3zxN6G1kV0pMWsPbF74j3hL5RK97nr0+0haCoxauZoqrq5iGxCwW6DGNjRqtEiYJlHaoSiJwdQ4n4Yle4qXEK4HLwAs9nBrBWYGznlC1GE9DdktBuSVwREwdSusR7EqCpVHNKwOFKq9gQgttI0UwaOOxQWIVmAO72P3QJva1DXdJweii4/W35/njk3/nDwqcB6cNlRvijKMajuJMHz++FXf1v+yuo068IiZfSDtVZAbPycaQ94fjaNdAF32sr7BaY2WiyMAvPsxT2yZ4/FYaeGqB5x/7M8+oSBU0VZCUaoArCyp7BTeyFtd1bDOwDclpsfZwejBE1sjAq0bTHZbopsTMG2yOuGUpgsf+dA+P7lrLgY/S3qxDfzrNkz88xr8GjrLdpPQVZemoTMS11uGG80wowa4AV8Waw+mLMWJl4Ijsk6oxtAdjGxS6qqNuSEPxt6/xwqjlM7cBZtFxbM9v2BcjQ92kXOwxVJYq73kTnLXYJcfnjKQSU4fTV1JETK/ipStDTDVAuxI73qRYcthmpOkNxbHHeP12oPlZSHTv/y2fD31KM8LQl5SFpBzM4+YncVzET2/gC0GSxNRz6csJ5JVVvLRhHj0AUxisU1gdKFyO2NM4+k1ezofpY8DTfS9yX0wMtViOeFxT1fvcxY8W+IU2D6tEuk51FLyc6cjAzdE6cqtKGj5RSCiOfJ2fjxV8+rZUVxzb83ser4ElZRhSWks1LKnm5vCfmkFcGLL3GtUPAeMkXss5XB+ucUw5xPocdaTIEf/gAe5/ZIZDtztcb8xy8Mm/8rsgKL2kdCWl1HiTgT1uqs2E0uxKgVkx/WzaGRQzEU61ljhdp1OJtjmFwFxPp0Tx4pfY/5Hp1OX5R1/iGamp6pQqKUtLpRZxRUF1uYXf6NjiFTtE4JTYcChNVYIHhWD+8kaOTh9HN6cwVyp0obH1yVbYWGGUwj63h69un+SRTHuMLC053vnHBQ5//yivNsCFLB6BSmcF6+GGAVesxl1awK9u8lkhaBM4Jvh1smsW2BsFVgx5bcOQq+cL1JxGjQiMddggMKbA6IjOkpl1m4DIimkUyRuCKAlZMn2gUi1c2cdJg8+SOXsVn2lOkt0kelce50hdJFYf5pNCcJeILLQLjg5mUXU+N9DNCu0HmGjQVi6DpoQka3UFaJLIVyI4h897WvZwExrfN/hcHtst/ELJbi2ZsIqTF74rTtZlkZ9g11j2RoXJZdEqzrlJpJ9HtRpo36/rsra5SkXksAG2QolAwpDKXJ2yGVipUKbE99qErNHmMrHazOYU2aEC/anAP098TywtAydY+0tmYuBuPEFFXsvuI9udXB6DQo0EZDciGxKFRqTqhvcSGTRfitiPBHWTEega2saxW0p0EXlj30XOdzorFqg2eyvWR0pmVGIoh/xbFvSy9bnkkBNdVBxFpuEN63NNTUSDtNQjZv+1oIhrFDG7jwxqHfcKuWx9Lj3Bfz5k9mqvmS2oWHPN7EW8Dbxrm5x9r42YHiKDQ8beitkrVjx7m8QcyDZJzRFVjyTHSLHNHQPYJhNaWM7Nvs+bdERcduw3m70Vv5n919Mb2Slha16OZNnezpbMbfLI2EVcWA8bgAvZV68oirVEzsLSeiZF4M6oWK0FEcOZ/Wc5nunNgB8Avq5GKYk6jg5i/SY2x8j2AK1cRFAsisR5EouqSzfr7rvAJwLNpRbNKFiVPKukYVU29AJcI/H2uX2crluaD7UzHzDn9V5f854J1v2KVnBsUoHNSJoh1hzlKa53JnVLc5OOCoFPklNrRzlz4gSe2shnh5Wbhhu91C16pxudxfJ8y/RMHWKdiqxOijEH41aiM6CI+NwvaZiViUsTk3RPfENUWR9WTsEtG7f/ARqeIzUaHVUWAAAAAElFTkSuQmCC",symbolSize: [20, 20],itemStyle: {color: "#FFF",shadowColor: "rgba(255, 255, 255, 1)",shadowBlur: 5,borderWidth: 1,opacity: 1},z: 2,zlevel: 10,data: val.Xdata,animationDelay: 500}],dataZoom: [// {// 	type: "slider",// 	show: val.Ydata.length > 8 ? true : false, //隐藏或显示（true）组件// 	backgroundColor: "#1c3030", // 组件的背景颜色。// 	fillerColor: "#74adb2", // 选中范围的填充颜色。// 	borderColor: "none", // 边框颜色// 	showDetail: false, //是否显示detail，即拖拽时候显示详细数值信息// 	startValue: 0, // 数据窗口范围的起始数值// 	endValue: 8, // 数据窗口范围的结束数值（一页显示多少条数据）// 	yAxisIndex: [0, 1], //控制哪个轴，如果是 number 表示控制一个轴，如果是 Array 表示控制多个轴。此处控制第二根轴// 	filterMode: "empty",// 	width: 5, //滚动条高度// 	height: "80%", //滚动条显示位置// 	right: 3, // 距离右边// 	handleSize: 0, //控制手柄的尺寸// 	zoomLoxk: true, // 是否锁定选择区域（或叫做数据窗口）的大小// 	top: "middle"// },{type: "slider",show: val.Ydata.length > 8 ? true : false,top: "middle",showDetail: false,brushSelect: false,orient: "vertical",backgroundColor: "#172b2c",showDataShadow: false,startValue: 0,endValue: 8,borderColor: "transparent",fillerColor: "#74adb2",zoomLock: true,handleSize: "92%",borderRadius: 100,width: 5, //滚动条高度height: "80%", //滚动条显示位置right: 3, // 距离右边handleStyle: {borderWidth: "none"},handleColor: "#74adb2",handleIcon: "path://M512,512m-448,0a448,448,0,1,0,896,0a448,448,0,1,0,-896,0Z"},{//没有下面这块的话，只能拖动滚动条，鼠标滚轮在区域内不能控制外部滚动条type: "inside",yAxisIndex: [0, 1], //控制哪个轴，如果是 number 表示控制一个轴，如果是 Array 表示控制多个轴。此处控制第二根轴zoomOnMouseWheel: false, //滚轮是否触发缩放moveOnMouseMove: true, //鼠标移动能否触发平移moveOnMouseWheel: true //鼠标滚轮能否触发平移}]};extension(myChart);option && myChart.setOption(option);
};