Charts 谷歌图表：图表包装器和格式化程序（NumberFormat）_Charts_Google Visualization

Charts 谷歌图表：图表包装器和格式化程序（NumberFormat）

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Charts 谷歌图表：图表包装器和格式化程序（NumberFormat）,charts,google-visualization,Charts,Google Visualization,如何使用ChartWrapper和格式设置程序向线/条形图上的工具提示添加后缀？这是我的ChartWrapper代码 function drawChartb() { var wrapper = new google.visualization.ChartWrapper({ chartType: 'LineChart', dataTable: [['Person', 'Score'], [1, .50], [2, .25]], options: {'legend

如何使用ChartWrapper和格式设置程序向线/条形图上的工具提示添加后缀？这是我的ChartWrapper代码

function drawChartb() {

    var wrapper = new google.visualization.ChartWrapper({
    chartType: 'LineChart',
    dataTable: [['Person', 'Score'], [1, .50], [2, .25]],
    options: {'legend': 'bottom', 'colors': ['#D70005'], 'chartArea': {left: 40, top: 10, width: 450}, 'vAxis': {format: '#,###%', 'viewWindow': {max: 1.05, min: .2}}, 'pointSize': 6},
    containerId: 'chart_div'
    });

    wrapper.draw();
}

我就是这样做的，没有使用图表包装器

// set tooltip as percentage
var formatter = new google.visualization.NumberFormat({
pattern: '#%', 
fractionDigits: 2
});
formatter.format(data, 1);

谢谢

您可以在包装器外部定义数据，在包装器上使用，然后将dataTable设置为与该数据源相等：

function drawVisualization() {

  var data = google.visualization.arrayToDataTable([
        ['Person', 'Score'], [1, .50], [2, .25]
    ]);

  // set tooltip as percentage
  var formatter = new google.visualization.NumberFormat({
    pattern: '#%',
    fractionDigits: 2
  });
  formatter.format(data, 1);

  var wrapper = new google.visualization.ChartWrapper({
    chartType: 'LineChart',
    dataTable: data,
    options: {'legend': 'bottom', 'colors': ['#D70005'], 'chartArea': {left: 40, top: 10, width: 450}, 'vAxis': {format: '#,###%', 'viewWindow': {max: 1.05, min: .2}}, 'pointSize': 6},
    containerId: 'visualization'
  });


  wrapper.draw();
}

结果:

您可以在包装器外部定义数据，在包装器上使用，然后将dataTable设置为与该数据源相等：

function drawVisualization() {

  var data = google.visualization.arrayToDataTable([
        ['Person', 'Score'], [1, .50], [2, .25]
    ]);

  // set tooltip as percentage
  var formatter = new google.visualization.NumberFormat({
    pattern: '#%',
    fractionDigits: 2
  });
  formatter.format(data, 1);

  var wrapper = new google.visualization.ChartWrapper({
    chartType: 'LineChart',
    dataTable: data,
    options: {'legend': 'bottom', 'colors': ['#D70005'], 'chartArea': {left: 40, top: 10, width: 450}, 'vAxis': {format: '#,###%', 'viewWindow': {max: 1.05, min: .2}}, 'pointSize': 6},
    containerId: 'visualization'
  });


  wrapper.draw();
}

结果:

对于那些使用ChartWrapper生成图表数据但无法使用NumberFormat的用户，您可以直接将格式应用于行“f”：null

注意：

我发现构造函数方法可以使用，但不能使用

使用数据表>确定

var chart = new google.visualization.PieChart(document.getElementById('chart'));
var dataTable = new google.visualization.DataTable(data); 
var formatter = new google.visualization.NumberFormat({prefix: '$'});
formatter.format(dataTable, 1);

使用ChartWrapper>BAD

var formatter = new google.visualization.NumberFormat({prefix: '$'});
formatter.format(data, 1);

var wrapper = new google.visualization.ChartWrapper({
    chartType: 'PieChart',
    dataTable: data,
    options: myPieChartOptions(),
    containerId: 'chart_div'
});

这就是我使用Google JSON正确格式化数据的方式。 JSON示例：

{
    "cols": [
          {"id":"","label":"Product","pattern":"","type":"string"},
          {"id":"","label":"Sales","pattern":"","type":"number"}
        ],
    "rows": [
          {"c":[{"v":"Nuts","f":null},{"v":945.59080870918,"f":"$945.59"}]}
        ]
 }

下面是生成JSON的PHP代码

setlocale(LC_MONETARY, 0);

// init  arrays
$result['cols'] = array();
$result['rows'] = array();

// add col data
$result['cols'][] = array(
    "id" => "",
    "label" => "Product",
    "pattern" => "",
    "type" => "string"
);
$result['cols'][] = array(
    "id" => "",
    "label" => "Sales",
    "pattern" => "",
    "type" => "number"
);

$nutsTotalFormat =  "$".number_format($nutsTotal, 2);

$result['rows'][]["c"] = array(array("v" => "Nuts","f" => null),array("v" => $nutsTotal,"f" => $nutsTotalFormat ));

饼图将显示$nutsTotalFormat的格式化结果

“$945.59”