Machafu ya Google

Kisha cha mapu/geo chart kwa upekee hadi kisha cha miamba kina kina, Google chart library ina kielekile cha chart kwa uwezo wa kufikiria wakati huo:

  • Scatter Chart
  • Line Chart
  • Bar / Column Chart
  • Area Chart
  • Pie Chart
  • Donut Chart
  • Org Chart
  • Map / Geo Chart

如何使用 Google Chart？

您如需在的网页中使用 Google Chart，请添加指向图表加载器的链接:

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

谷歌图表易于使用。

只需添加一个 <div> 元素即可显示图表：

<div id="myChart" style="max-width:700px; height:400px"></div>

<div> 元素必须有一个唯一的 ID。

然后加载 Google Graph API：

  1. 加载 Visualization API 和 corechart 包
  2. 设置一个回调函数，在 API 加载完成后进行调用
1 google.charts.load('current',{packages:['corechart']});
2 google.charts.setOnLoadCallback(drawChart);

就这样！

折线图

源代码

function drawChart() {
// 设置数据
var data = google.visualization.arrayToDataTable([
  ['价格', '尺寸'],
  [50,7],[60,8],[70,8],[80,9],[90,9],[100,9],
  [110,10],[120,11],[130,14],[140,14],[150,15]
  ]);
// 设置选项
var options = {
  title: '房价与房屋面积',
  hAxis: {title: '平方米'},
  vAxis: {title: '百万价格'},
  legend: 'none'
};
// 绘制图表
var chart = new google.visualization.LineChart(document.getElementById('myChart'));
chart.draw(data, options);
}

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散点图

相同的数据如需生成散点图，请将 google.visualization 更改成 ScatterChart:

var chart = new google.visualization.ScatterChart(document.getElementById('myChart'));

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条形图

源代码

function drawChart() {
var data = google.visualization.arrayToDataTable([
  ['Contry', 'Mhl'],
  ['Italy', 55],
  ['France', 49],
  ['Spain', 44],
  ['America', 24],
  ['Argentina', 15]
]);
var options = {
  title: 'Uchafuzi wa vina wa jua kati ya dunia'
};
var chart = new google.visualization.BarChart(document.getElementById('myChart'));
chart.draw(data, options);
}

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Picha ya jua

Kuwaambia picha ya bar ya:Picha ya juaKwa kutumia:

google.visualization.PieChart

Chukua:

google.visualization.BarChart

var chart = new google.visualization.PieChart(document.getElementById('myChart'));

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Picha ya jua ya 3D

Kuonyesha picha ya jua kwa muundo wa 3D, bila ya kufikia: is3D: true Kuingiza kwenye mifano:

var options = {
  title: 'Uchafuzi wa vina wa jua kati ya dunia',
  is3D: true
};

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