本文主要是介绍uniapp 使用renderjs引入echarts，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
效果图：
1.1renderjs引入echarts
组件zmui-echarts.vue：
<template><view class="zmui-echarts" :prop="option" :change:prop="echarts.delay"></view>
</template><script>export default {name: 'zmuiEcharts',props: {option: {type: Object,required: true}}}
</script>//使用renderjs 就让app拥有类似有.HTML文件的环境 能直接挂载.js的能力
<script module="echarts" lang="renderjs"> export default {data() {return {timeoutId: null,chart: null}},mounted() {if (typeof window.echarts === 'object') {this.init()} else {// 动态引入类库const script = document.createElement('script') //创建个标签script.src = './static/echarts.min.js' //引入echarts.min.jsscript.onload = this.initdocument.head.appendChild(script) //全局挂载echarts.min.js}},methods: {/*** 初始化echarts*/init() {// 根据id初始化图表this.chart = echarts.init(this.$el)this.update(this.option)},/*** 防抖函数，500毫秒内只运行最后一次的方法* @param {Object} option*/delay(option) {if (this.timeoutId) {clearTimeout(this.timeoutId)this.timeoutId = null}this.timeoutId = setTimeout(() => {this.update(option)}, 500)},/*** 监测数据更新* @param {Object} option*/update(option) {console.log('option', option)if (this.chart) {// 因App端，回调函数无法从renderjs外传递，故在此自定义设置相关回调函数if (option) {// tooltipif (option.tooltip) {// 判断是否设置tooltip的位置if (option.tooltip.positionStatus) {option.tooltip.position = this.tooltipPosition()}// 判断是否格式化tooltipif (option.tooltip.formatterStatus) {option.tooltip.formatter = this.tooltipFormatter(option.tooltip.formatterUnit, option.tooltip.formatFloat2,option.tooltip.formatThousands)}}// legendif (option.legend) {console.log('option.legend', option.legend)if (Object.prototype.toString.call(option.legend) == '[object Array]') {for (let i in option.legend) {if (option.legend[i].formatterStatus) {option.legend[i].formatter = this.legendFormatter(option.legend[i].formatterType, option.legend[i].formatterArr)}}console.log(12)} else {if (option.legend.formatterStatus) {console.log(56)// option.legend.formatter = this.legendFormatter(option.legend.formatterType, option.legend.formatterArr)// option.legend.formatter = function(value) {// return '1'// }}console.log(34)}}// y轴if (option.yAxis) {if (option.yAxis.axisLabel) {if (option.yAxis.axisLabel.formatterStatus) {option.yAxis.axisLabel.formatter = this.yAxisFormatter(option.yAxis.axisLabel.formatterData)}}if (option.yAxis[0].axisLabel.water) {let currentChooseName = option.yAxis[0].axisLabel.water.currentChooseNamelet name = option.yAxis[0].axisLabel.water.nameconsole.log('name========>', name,currentChooseName)option.yAxis[0].axisLabel.formatter = function(value) {let level = nullif (currentChooseName == '西铝饮用水' || currentChooseName == '和尚山') {if (name == 'CODMn') {switch (value) {case 2:level = 2.0;break;case 4:level = 4.0;break;case 6:level = 6.0;break;case 10:level = 10.0;break;}return level;}else if (name == 'TP') {switch (value) {case 0.02:level = 0.02;break;case 0.1:level = 0.1;break;case 0.2:level = 0.2;break;case 0.3:level = 0.3;break;}return level;}else if (name == 'DO') {switch (value) {case 7.5:level = 7.5;break;case 6:level = 6.0;break;case 5:level = 5.0;break;case 3:level = 3.0;break;}return level;}else if (name == 'TN') {switch (value) {case 0.2:level = 0.2;break;case 0.5:level = 0.5;break;case 1:level = 1.0;break;case 1.5:level = 1.5;break;}return level;} else if (name == 'NH3-N') {switch (value) {case 0.15:level = 0.15;break;case 0.5:level = 0.5;break;case 1:level = 1.0;break;case 1.5:level = 1.5;break;}return level;}}else if(currentChooseName !== '西铝饮用水' || currentChooseName !== '和尚山') {if (name == 'CODMn') {switch (value) {case 4:level = 4.0;break;case 6:level = 6.0;break;case 10:level = 10.0;break;case 15:level = 15.0;break;}return level;}else if (name == 'TP') {switch (value) {case 0.1:level = 0.1;break;case 0.2:level = 0.2;break;case 0.3:level = 0.3;break;case 0.4:level = 0.4;break;}return level;} else if (name == 'DO') {switch (value) {case 6:level = 6.0;break;case 5:level = 5.0;break;case 3:level = 3.0;break;case 2:level = 2.0;break;}return level;}else if (name == 'TN') {switch (value) {case 0.5:level = 0.5;break;case 1:level = 1.0;break;case 1.5:level = 1.5;break;case 2:level = 2.0;break;}return level;} else if (name == 'NH3-N') {switch (value) { case 0.5:level = 0.5;break;case 1:level = 1.0;break;case 1.5:level = 1.5;break;case 2:level = 2.0;break;}return level;}} }}}// 颜色渐变if (option.series) {for (let i in option.series) {let linearGradient = option.series[i].linearGradientif (option.series[i].axisLabel && option.series[i].axisLabel.formatterText) {option.series[i].axisLabel.formatter = function(value) {if (value === 0) {return '0 \n 健康';} else if (value === 1) {return '50 \n 优';} else if (value === 2) {return '100 \n 良';} else if (value === 3) {return '150 \n 轻度';} else if (value === 4) {return '200 \n 中度';} else if (value === 5) {return '300 \n 重度';} else if (value === 6) {return '500 \n 严重';}}}if (linearGradient) {option.series[i].color = new echarts.graphic.LinearGradient(linearGradient[0], linearGradient[1],linearGradient[2], linearGradient[3], linearGradient[4])}if (option.series[i].itemStyle) {if (option.series[i].itemStyle.normal) {if (option.series[i].itemStyle.normal.formatterColor) {option.series[i].itemStyle.normal.color = this.colorFormatter(option.series[i].itemStyle.normal.formatterType,option.series[i])}}}if (option.series[i].markLine) {if (option.series[i].markLine.label) {if (option.series[i].markLine.label.normal) {if (option.series[i].markLine.label.normal.formatterLabel) {option.series[i].markLine.label.normal.formatter = this.labelFormatter(option.series[i].markLine.label.normal.formatterType, option.series[i].markLine.label.normal.formatterValue)}}}}}}}console.log(option)this.chart.clear() // 这个不要删掉哟，不然切换不同图形的时候会有bug// 设置新的optionthis.chart.setOption(option, option.notMerge)}},waterFormatterYAxis (value) {/* let name = nullswitch (value) {case 2:name = 2.0;break;case 4:name = 4.0;break;case 6:name = 6.0;break;case 10:name = 10.0;break;} */console.log('value', value)// return name;},/*** 设置tooltip的位置，防止超出画布*/tooltipPosition() {return (point, params, dom, rect, size) => {// 其中point为当前鼠标的位置，size中有两个属性：viewSize和contentSize，分别为外层div和tooltip提示框的大小let x = point[0]let y = point[1]let viewWidth = size.viewSize[0]let viewHeight = size.viewSize[1]let boxWidth = size.contentSize[0]let boxHeight = size.contentSize[1]let posX = 0 // x坐标位置let posY = 0 // y坐标位置if (x >= boxWidth) { // 左边放的下posX = x - boxWidth - 1}if (y >= boxHeight) { // 上边放的下posY = y - boxHeight - 1}return [posX, posY]}},/*** tooltip格式化* @param {Object} unit 数值后的单位* @param {Object} formatFloat2 是否保留两位小数* @param {Object} formatThousands 是否添加千分位*/tooltipFormatter(unit, formatFloat2, formatThousands) {return params => {if (Array.isArray(params)) {var params = params[0]// #ifdef H5var result = params.data.fullDate + '/n' + params.seriesName + "：" + params.data.value// #endif// #ifdef APP-PLUSvar result = params.data.fullDate + '</br>' + params.seriesName + "：" + params.data.value// #endif} else {// #ifdef H5var result = params.data.fullDate + '/n' + params.seriesName + "：" + params.data.value// #endif// #ifdef APP-PLUSvar result = params.data.fullDate + '</br>' + params.seriesName + "：" + params.data.value// #endif}return result}},/*** 保留两位小数* @param {Object} value*/formatFloat2(value) {let temp = Math.round(parseFloat(value) * 100) / 100let xsd = temp.toString().split('.')if (xsd.length === 1) {temp = (isNaN(temp) ? '0' : temp.toString()) + '.00'return temp}if (xsd.length > 1) {if (xsd[1].length < 2) {temp = temp.toString() + '0'}return temp}},/*** 添加千分位* @param {Object} value*/formatThousands(value) {if (value === undefined || value === null) {value = ''}if (!isNaN(value)) {value = value + ''}let re = /\d{1,3}(?=(\d{3})+$)/glet n1 = value.replace(/^(\d+)((\.\d+)?)$/, function(s, s1, s2) {return s1.replace(re, '$&,') + s2})return n1},/*** Y轴格式化* @param {Object} data*/yAxisFormatter(data) {return params => {let result = []for (let i in data) {if (params == i) {result.push(data[i])}}return result}},/*** legend 格式* @param {Object} Type* @param {Object} Arr*/legendFormatter(Type, Arr) {console.log('Arr', Arr)return params => {let result = ""var total = 0;for (var i = 0, l = Arr.length; i < l; i++) {total += Arr[i].value;}let res = Arr.filter(v => v.name === params)let val = res[0].valuelet precent=((val/total)*100).toFixed(2) + '%'// #ifdef H5result = params +"("+ val+"件)"// #endif// #ifdef APP-PLUSresult = params +"("+ val+"件)"// #endifreturn result}},/*** 颜色设置* @param {Object} Type*/colorFormatter(Type,series) {let value =0;return params => {//如果series 里面包含aqiData 数据 按AQI 的值来渲染颜色let value =params.value;if(series['aqiData']!=null){value =series['aqiData'][params.dataIndex];} let result = ""if (Type === 'one') {result = "rgb(126,0,35)"if (value > 0 && value < 51) {result = "#00e400"} else if (value >= 51 && value < 101) {result = "#ffff00"} else if (value>= 101 && value < 151) {result = "#ff7e00"} else if (value >= 151 && value < 201) {result = "#ff0000"} else if (value >= 201 && value < 301) {result = "#7e0023"}}return result}},/*** 标记线* @param {Object} Type* @param {Object} Value*/labelFormatter(Type, Value) {return params => {let result = ""if (Type === 'one') {result = Value}return result}},}}
</script><style scoped>.zmui-echarts {width: 100%;height: 100%;}
</style>
2.使用<zmuiEcharts :option="echartOptions"></zmuiEcharts>
import zmuiEcharts from '@/components/zmui-echarts/zmui-echarts.vue'
components: {zmuiEcharts},
<zmuiEcharts :option="echartOptions"></zmuiEcharts>export default {data(){return{echartOptions: {backgroundColor: '#ffffff',title: {text: 'mg/L',textStyle: {fontSize: 12,fontWeight: 'normal',color: '#858585', //标题颜色},top: 0,left: '4%',},tooltip: {show: false// axisPointer: {// type: "axis",// textStyle: {// color: "#000"// }// },// formatter: (data) => {// // 可以自定义文字和样式，用行内样式，数据包含在data参数中// let text = ` ${data.name}：${data.value}`// return text// }},grid: {top: "5%",right: "3%",bottom: '13%',},xAxis: [{data: [],margin: 20,interval: 0,rotate: 40,color: '#858585',textStyle: {fontSize: 12},axisLine: {lineStyle: {color: '#858585',}},axisTick: {show: true},}],axisLine: {show: false,lineStyle: {color: '#858585', //y轴颜色}},axisTick: {show: false},splitLine: {show: false},dataZoom: [{"show": true,"height": 8,"xAxisIndex": [0],bottom: '0%',start: 0,end: 6,handleIcon: "M-292,322.2c-3.2,0-6.4-0.6-9.3-1.9c-2.9-1.2-5.4-2.9-7.6-5.1s-3.9-4.8-5.1-7.6c-1.3-3-1.9-6.1-1.9-9.3c0-3.2,0.6-6.4,1.9-9.3c1.2-2.9,2.9-5.4,5.1-7.6s4.8-3.9,7.6-5.1c3-1.3,6.1-1.9,9.3-1.9c3.2,0,6.4,0.6,9.3,1.9c2.9,1.2,5.4,2.9,7.6,5.1s3.9,4.8,5.1,7.6c1.3,3,1.9,6.1,1.9,9.3c0,3.2-0.6,6.4-1.9,9.3c-1.2,2.9-2.9,5.4-5.1,7.6s-4.8,3.9-7.6,5.1C-285.6,321.5-288.8,322.2-292,322.2z",handleSize: "130%",handleStyle: {color: "#fff",shadowColor: "#B1B5B9",shadowBlur: 5,},backgroundColor: "#DEE3F4",fillerColor: "#008efe",endValue: 5,},{"type": "inside","show": true,"height": 15,"start": 1,"end": 35}],yAxis: [{type: 'value',min: 0,max: 0,interval: 0.01,name: 'nj',nameTextStyle: {color: '#ffffff'},axisLine: {show: true},axisTick: {show: false},splitLine: {show: false,},axisLabel: {color: '#858585',textStyle: {fontSize: 13},formatter: function(value1) {return value1;},water: {name: 'water',code: 'code'},},}],series: [{label: {normal: {show: true,color: '#333',position: 'top',}},name: 'nj',type: 'bar',data: [],barWidth: '8px',itemStyle: {normal: {formatterColor: true,formatterType: "one",}},}]}}}
}这篇关于uniapp 使用renderjs引入echarts的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
