javascript-如何使用标签中的超链接自定义Google图表？

我有与json一起添加到Google图表的不同国家/地区.每个国家都有指向特定站点的链接.这个对我有用.但是工具提示/标签的名称是一个链接.如何删除工具提示中的链接并添加国家/地区名称？
以及如何将国家边界颜色更改为白色？
提前.

HTML

<div id="visualization"></div>

JavaScript的

google.load('visualization', '1', {'packages': ['geochart']});
google.setOnLoadCallback(drawVisualization);

function drawVisualization() {
   var data = new google.visualization.arrayToDataTable([
    ['Country','Link',],
      ['Canada','http://www.google.ca'],
      ['Russia','http://www.bbc.com'],
      ['Australia','http://www.nytimes.com'],
   ]);

  var options = {
    colorAxis: {colors: 'white'},
    backgroundColor: '#81d4fa',
    datalessRegionColor: '#f8bbd0',
    defaultColor: 'black',
    displayMode:'regions',
    tooltip: {textStyle: {color: '#FF0000'}, trigger:'focus',isHtml: true},
    legend:'none',
    height:300,
    width:400
  };

  var chart = new google.visualization.GeoChart(document.getElementById('visualization'));
  google.visualization.events.addListener(chart, 'select', myClickHandler);
  chart.draw(data, options);

  function myClickHandler(){
    var link = data.getValue(chart.getSelection()[0]['row'],1);
    // Change the current site
    location.href = link;
  }
}

解决方法:

首先,建议不要使用jsapi加载库

根据release notes …

The version of Google Charts that remains available via the jsapi loader is no longer being updated consistently. Please use the new gstatic loader from now on.

<script src="https://www.gstatic.com/charts/loader.js"></script>

这只会将load语句更改为…

google.charts.load('current', {
  callback: drawVisualization,
  packages:['geochart']
});

(回调也可以添加到load语句中)

接下来,根据data format for regions mode,

第二列应该是数字(不是字符串/链接)

但由于点击处理程序需要链接,因此请使用DataView隐藏图表中的列

^这将修复工具提示-添加国家名称而不是链接

根据colorAxis,数字列驱动国家/地区的阴影

如果没有提供数字(如问题所示),那么colorAxis将无效

最后,没有控制国家边界的标准选项

请参阅以下工作片段…

google.charts.load('current', {
  callback: drawVisualization,
  packages:['geochart']
});

function drawVisualization() {
  var data = google.visualization.arrayToDataTable([
    ['Country','Link',],
    ['Canada','http://www.google.ca'],
    ['Russia','http://www.bbc.com'],
    ['Australia','http://www.nytimes.com'],
  ]);

  var view = new google.visualization.DataView(data);
  view.hideColumns([1]);

  var options = {
    backgroundColor: '#81d4fa',
    datalessRegionColor: '#f8bbd0',
    defaultColor: 'black',
    displayMode: 'regions',
    tooltip: {textStyle: {color: '#FF0000'}, trigger:'focus',isHtml: true},
    legend: 'none',
    height:300,
    width:400
  };

  var chart = new google.visualization.GeoChart(document.getElementById('visualization'));
  google.visualization.events.addListener(chart, 'select', myClickHandler);
  chart.draw(view, options);

  function myClickHandler(){
    var selection = chart.getSelection();
    if (selection.length > 0) {
      var link = data.getValue(selection[0].row, 1);
      window.open(link, '_blank');
    }
  }
}

<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="visualization"></div>

标签：javascript,google-maps,google-visualization
来源： https://codeday.me/bug/20191013/1905357.html