微信小程序Echarts图表组件使用方法详解

<!--index.wxml--><view class="container"><ec-canvas id="mychart-dom-line" canvas-id="mychart-line" ec="{{ ec }}"></ec-canvas></view>

import * as echarts from '../../ec-canvas/echarts';const app = getApp();function initChart(canvas, width, height) {const chart = echarts.init(canvas, null, {width: width,height: height});canvas.setChart(chart);var option = {title: {text: '测试下面legend的红色区域不应被裁剪',left: 'center'},color: ["#37A2DA", "#67E0E3", "#9FE6B8"],legend: {data: ['A', 'B', 'C'],top: 50,left: 'center',backgroundColor: 'red',z: 100},grid: {containLabel: true},tooltip: {show: true,trigger: 'axis'},xAxis: {type: 'category',boundaryGap: false,data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日'],// show: false},yAxis: {x: 'center',type: 'value',splitLine: {lineStyle: {type: 'dashed'}}// show: false},series: [{name: 'A',type: 'line',smooth: true,data: [18, 36, 65, 30, 78, 40, 33]}, {name: 'B',type: 'line',smooth: true,data: [12, 50, 51, 35, 70, 30, 20]}, {name: 'C',type: 'line',smooth: true,data: [10, 30, 31, 50, 40, 20, 10]}]};chart.setOption(option);return chart;}Page({onShareAppMessage: function (res) {return {title: 'ECharts 可以在微信小程序中使用啦！',path: '/pages/index/index',success: function () { },fail: function () { }}},data: {ec: {onInit: initChart}},onReady() {}});

{"usingComponents": {"ec-canvas": "../../ec-canvas/ec-canvas"}}

/**index.wxss**/ec-canvas {width: 100%;height: 100%;}

/**index.wxss**/ec-canvas {width: 100%;height: 100%;}ec-canvas {width: 100%;height: 100%;}.container {position: absolute;top: 0;bottom: 0;left: 0;right: 0;display: flex;flex-direction: column;align-items: center;justify-content: space-between;box-sizing: border-box;}.picker-pos {margin-top: -130rpx;margin-left: 150rpx;color: blueviolet;}