以下是顯示圓餅圖的簡單網頁範例:
您可以將下列程式碼片段複製到電腦上的 .html 檔案,然後在瀏覽器中開啟檔案,以便顯示上方的圓餅圖:
<html> <head> <!--Load the AJAX API--> <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script> <script type="text/javascript"> // Load the Visualization API and the corechart package. google.charts.load('current', {'packages':['corechart']}); // Set a callback to run when the Google Visualization API is loaded. google.charts.setOnLoadCallback(drawChart); // Callback that creates and populates a data table, // instantiates the pie chart, passes in the data and // draws it. function drawChart() { // Create the data table. var data = new google.visualization.DataTable(); data.addColumn('string', 'Topping'); data.addColumn('number', 'Slices'); data.addRows([ ['Mushrooms', 3], ['Onions', 1], ['Olives', 1], ['Zucchini', 1], ['Pepperoni', 2] ]); // Set chart options var options = {'title':'How Much Pizza I Ate Last Night', 'width':400, 'height':300}; // Instantiate and draw our chart, passing in some options. var chart = new google.visualization.PieChart(document.getElementById('chart_div')); chart.draw(data, options); } </script> </head> <body> <!--Div that will hold the pie chart--> <div id="chart_div"></div> </body> </html>
長條圖如何?
如要將圓餅圖轉換為長條圖,請在程式碼中將 google.visualization.PieChart
替換為 google.visualization.BarChart
,然後重新載入瀏覽器。您可能會發現「Slices」圖例遭到截斷。如要修正這個問題,請將 width
從 400 變更為 500、儲存檔案,然後重新載入瀏覽器。