今天我们来画折线图 效果图
以下为模拟数据
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首先创建filterData方法 用于过滤数据 text文本 line线段 area圆 tag暂时用不到 今天说的是折线所以创建zrLine 方法
filterData(){ const data = chartData data.forEach(el => { switch (el.type) { case "text": // this.zrText(el) break; case "line": this.zrLine(el) break; case "area": this.zrPolyline(el) break; case "tag": this.zrTag(el) break; default: break; } }); }
我们在新增一个文件夹创建utli.js这个文件夹的作用为我们把创建线创建圆的公共方法写在这个js文件里
utli.js 我们先说 createLine createCircle
createLine 需要传5个参数分别为开始点的横纵坐标 结束点的横纵坐标 还有线的样式
createCircle 需要传4个参数分别为 圆点的横纵坐标 圆的半径 和样式