Amcharts v3：关于折线图/序列图的问题

问题描述

请检入Codepen（根据官方示例进行一些修改）。

我的问题是：当鼠标无间隔移动时，我是否可以将气球设置为始终指向上一个点。

例如：在codepen中，如果鼠标在2000到2001之间移动，我希望气球指向2000。

/**
 * amCharts plugin
 * Before the chart is initialized,this plugin will sort the `graphs` array
 * by their `index` value
 */
AmCharts.addInitHandler(function(chart) {
  
  // Reorder chart graph's based on their "index" value
  chart.graphs.sort(function(a,b) {
    if (a.index == b.index) {
      return 0;
    }
    return a.index < b.index ? -1 : 1;
  });
  
},["serial"]);

/**
 * Make the chart
 */
var chart = AmCharts.makeChart("chartdiv",{
  "type": "serial","legend": {
    "align": "center","equalWidths": false,"periodValueText": "total: [[value.sum]]","valueAlign": "left","valueText": "[[value]] ([[percents]]%)","valueWidth": 100
  },"dataProvider": [
  {
    "year": "1994","cars": 1587,"motorcycles": 650,},{
    "year": "1995","cars": 1567,{
    "year": "1996","cars": 1617,"motorcycles": 691,{
    "year": "1997","cars": 1630,{
    "year": "1998","cars": 1660,"motorcycles": 699,{
    "year": "1999","cars": 1683,{
    "year": "2000","cars": 1691,"motorcycles": 737,{
    "year": "2001","cars": 1298,{
    "year": "2002","cars": 1275,"motorcycles": 664,{
    "year": "2003","cars": 1246,{
    "year": "2004","cars": 1218,"motorcycles": 637,{
    "year": "2005","cars": 1213,{
    "year": "2006","cars": 1199,"motorcycles": 621,{
    "year": "2007","cars": 1110,{
    "year": "2008","cars": 1165,"motorcycles": 232,{
    "year": "2009","cars": 1145,{
    "year": "2010","cars": 1163,"motorcycles": 201,{
    "year": "2011","cars": 1180,{
    "year": "2012","cars": 1159,"motorcycles": 277,}
],"valueAxes": [{
    "stackType": "regular","position": "left","title": "percent"
  }],"graphs": [{
    "title": "Cars","valueField": "cars","index": 2
  },{
    "title": "Motorcycles","valueField": "motorcycles","index": 3
  }],"plotAreaBorderAlpha": 0,"marginLeft": 0,"marginBottom": 0,"chartCursor": {
    "cursorAlpha": 0,"zoomable": false
  },"categoryField": "year","categoryAxis": {
    "startOnAxis": true,"axisColor": "#DADADA","gridAlpha": 0.07
  },chartCursor: {
    cursorPosition: 'mouse',});

#chartdiv {
  width: 100%;
  height: 500px;
}

<script src="https://www.amcharts.com/lib/3/amcharts.js"></script>
<script src="https://www.amcharts.com/lib/3/serial.js"></script>
<script src="https://www.amcharts.com/lib/3/themes/light.js"></script>
<div id="chartdiv"></div>

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

小编邮箱:dio#foxmail.com (将#修改为@）

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