带有多列数据的凹痕多行

Question

如何制作具有多列数据的多折线图？
数据示例：

var data75 = [{"d":1,'a1':50,'a2':70},
{"d":2,'a1':90,'a2':71},
{"d":3,'a1':40,'a2':90},
{"d":4,'a1':15,'a2':70},
{"d":5,'a1':150,'a2':60},
{"d":6,'a1':53,'a2':20},
{"d":7,'a1':59,'a2':40},
{"d":8,'a1':30,'a2':50},
{"d":9,'a1':70,'a2':77},
{"d":10,'a1':52,'a2':72},
{"d":11,'a1':56,'a2':10},
{"d":12,'a1':57,'a2':40},];

d = x 轴；
a1 和 a2 = 2 个不同系列中的 y 轴；

Answer 1

1. 创建 SVG 对象

   var svg = dimple.newSvg('#div', 400, 200);
   

2. 创建图表

   var chart = dimple.chart(svg, data75);
   chart.setBounds(20, 20, 360, 160);
   

3. 创建/或/为图表分配轴

   var x = chart.addCategoryAxis("x", "x");
   var y1 = chart.addMeasureAxis("y", "a1");
   var y2 = chart.addMeasureAxis("y", "a2");
   

4. 添加系列（一对轴组成系列）

   myChart.addSeries(null, dimple.plot.line, [x, y1]);
   myChart.addSeries(null, dimple.plot.line, [x, y2]);
   

5. 绘制图表

   myChart.draw();