以下是我正在使用的代码,基于a how to I found in Google's documentation,但我不确定它是否适用于Geochart,如果我做得对,或者有一些另一种方法是为Geochart做这件事。
如果我不包含工具提示列,此代码可以正常工作。当我这样做时,我得到错误“不兼容的数据表:错误:表包含比预期更多的列(期望2列),”显示Geochart应该在哪里。
This question解决了同样的问题,但并未专门针对Geochart。
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type='text/javascript'>
google.load( 'visualization', '1', { 'packages': ['geochart'] } );
google.setOnLoadCallback( drawRegionsMap );
function drawRegionsMap()
{
var data = google.visualization.arrayToDataTable([
[ 'State', 'Relevance', {type: 'string', role: 'tooltip'} ],
[ 'Alabama', 3, 'tooltip test text' ],
[ 'Arizona', 1, 'tooltip test text' ],
]);
var options =
{
region: 'US',
resolution: 'provinces',
};
var chart = new google.visualization.GeoChart( document.getElementById( 'chart_div' ) );
chart.draw( data, options );
};
</script>
答案 0 :(得分:21)
我能够在工具提示中包含我想要的文本,包括这样的值:
var data = new google.visualization.DataTable();
data.addColumn('string', 'Country'); // Implicit domain label col.
data.addColumn('number', 'Value'); // Implicit series 1 data col.
data.addColumn({type:'string', role:'tooltip'}); //
data.addRows([
[{v:"US",f:"United States of America"},1,"21% of Visits"],
[{v:"GB",f:"United Kingdom"},2,"7% of visits"],
[{v:"DE",f:"Germany"},3,"6% of visits"],
[{v:"FR",f:"France"},4,"5% of visits"],
[{v:"ES",f:"Spain"},5,"5% of visits"],
[{v:"CA",f:"Canada"},6,"4% of visits"],
[{v:"IT",f:"Italy"},7,"4% of visits"],
[{v:"NL",f:"The Netherlands"},8,"4% of visits"],
[{v:"BR",f:"Brazil"},9,"4% of visits"],
[{v:"TR",f:"Turkey"},10,"3% of visits"],
[{v:"IN",f:"India"},11,"3% of visits"],
[{v:"RU",f:"Russia"},12,"3% of visits"],
[{v:"AU",f:"Australia"},13,"2% of visits"],
]);
这样,例如“美利坚合众国”将是工具提示的第1行,“21%的访问”将是第二行。使用这种格式,我可以在工具提示中包含我想要的任何文本。
答案 1 :(得分:19)
为了自定义工具提示以使用包含新行/图像的html,请检查以下示例: http://jsfiddle.net/SD4KA/
google.load('visualization', '1.1', {packages: ['geochart'], callback: drawVisualization});
function drawVisualization() {
var data = google.visualization.arrayToDataTable([
['Country', 'Value', {role: 'tooltip', p:{html:true}}],
['Russia', 5, 'Hello world<br>test'],
['US', 20, '<img src="https://www.google.com/images/srpr/logo6w.png"/>']]);
var chart = new google.visualization.GeoChart(document.getElementById('visualization'));
chart.draw(data, {
width: 800,
height: 600,
tooltip: {
isHtml: true
}
});
}
由于v1.1 geochart支持工具提示的html
答案 2 :(得分:8)
- 手动设置数据点的格式化值(使用#setFormattedValue()DataTable方法)
- 在DataTable列上使用formatters之一
- 在DataTable中包含“tooltip”角色列
我个人使用过第一个,你的例子应该是
var data = google.visualization.arrayToDataTable([
[ 'State', 'Relevance' ],
[ 'Alabama', { v: 3, f: 'tooltip test text' } ],
[ 'Arizona', { v: 1, f: 'tooltip test text' } ],
]);
答案 3 :(得分:6)
我遇到了散点图的类似问题。我必须使用arrayToDataTable
将数据导入图表,而不是DataTable()
和addColumn()
,如其他答案所示。
为了使其正常工作,您可以像当前一样调用arrrayToDataTable()
并保存到变量数据。
然后,您需要指定要将哪个列视为工具提示(并且您还必须指定应绘制哪些列)。在以下示例中,第0列和第1列包含绘图数据,第2列包含工具提示字符串。
var view = new google.visualization.DataView(data);
view.setColumns([0, 1, {sourceColumn: 2,role:'tooltip'}]);
最后,您必须使用视图变量而不是数据变量进行绘制调用:
chart.draw(view, options);
答案 4 :(得分:3)
似乎无法按照我尝试使用GeoChart工具的方式格式化文本。下面是我最终提出的解决方案和渲染的地图:
使用工具提示视图渲染地图
PHP&amp; JavaScript代码
<!-- generate geo map -->
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type='text/javascript'>
google.load( 'visualization', '1', { 'packages': ['geochart'] } );
google.setOnLoadCallback( drawRegionsMap );
function drawRegionsMap()
{
// create data table
var data = google.visualization.arrayToDataTable([
<?php echo $data_table; ?>
]);
// create chart object
var chart = new google.visualization.GeoChart(
document.getElementById( 'chart_div' )
);
// defines the data for the tooltip
var formatter = new google.visualization.PatternFormat('{0}');
formatter.format( data, [0,1], 1 );
var formatter = new google.visualization.PatternFormat('{2}');
formatter.format( data, [0,1,2], 0 );
// defines the data for the chart values
var view = new google.visualization.DataView(data);
view.setColumns([0, 1]);
// set options for this chart
var options =
{
width: <?php echo $width; ?>,
region: 'US',
resolution: 'provinces',
colorAxis: { colors: ['#abdfab', '#006600'] },
legend: 'none'
};
// draw chart
chart.draw( view, options );
};
</script>
<div id="chart_div" style="width: <?php echo $width; ?>px; height: <?php echo $height; ?>px;"></div>
呈现HTML
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type='text/javascript'>
google.load( 'visualization', '1', { 'packages': ['geochart'] } );
google.setOnLoadCallback( drawRegionsMap );
function drawRegionsMap()
{
// create data table
var data = google.visualization.arrayToDataTable([
[ 'State', 'in', 'String' ],
[ 'Arizona', 2, 'Has Facility, Sells Direct' ],
[ 'California', 4, 'Has Facility, Has Distributor, Sells Direct' ],
[ 'Colorado', 1, 'Sells Direct' ],
[ 'Florida', 1, 'Has Distributor' ],
[ 'Georgia', 1, 'Has Distributor' ],
[ 'Idaho', 1, 'Sells Direct' ],
[ 'Illinois', 1, 'Has Distributor' ],
[ 'Indiana', 1, 'Has Distributor' ],
[ 'Iowa', 1, 'Has Distributor' ],
[ 'Kansas', 1, 'Has Distributor' ],
[ 'Kentucky', 1, 'Has Distributor' ],
[ 'Louisiana', 1, 'Has Distributor' ],
[ 'Maryland', 2, 'Has Distributor' ],
[ 'Montana', 1, 'Sells Direct' ],
[ 'Nevada', 2, 'Has Facility, Sells Direct' ],
[ 'New Mexico', 2, 'Has Facility, Sells Direct' ],
[ 'North Carolina', 1, 'Has Distributor' ],
[ 'North Dakota', 1, 'Has Distributor' ],
[ 'Oklahoma', 1, 'Sells Direct' ],
[ 'Oregon', 1, 'Sells Direct' ],
[ 'Pennsylvania', 1, 'Has Distributor' ],
[ 'South Carolina', 1, 'Has Distributor' ],
[ 'Tennessee', 1, 'Has Distributor' ],
[ 'Texas', 1, 'Has Distributor' ],
[ 'Utah', 2, 'Has Facility, Sells Direct' ],
[ 'Washington', 1, 'Sells Direct' ],
[ 'Wyoming', 1, 'Sells Direct' ], ]);
// create chart object
var chart = new google.visualization.GeoChart(
document.getElementById( 'chart_div' )
);
// defines the data for the tooltip
var formatter = new google.visualization.PatternFormat('{0}');
formatter.format( data, [0,1], 1 );
var formatter = new google.visualization.PatternFormat('{2}');
formatter.format( data, [0,1,2], 0 );
// defines the data for the chart values
var view = new google.visualization.DataView(data);
view.setColumns([0, 1]);
// set options for this chart
var options =
{
width: 286,
region: 'US',
resolution: 'provinces',
colorAxis: { colors: ['#abdfab', '#006600'] },
legend: 'none'
};
// draw chart
chart.draw( view, options );
};
</script>
<div id="chart_div" style="width: 286px; height: 180px;"></div>