将变量传递给Google Piechart

我试图将变量传递到Google图表中，但是当我这样做时图表停止显示，我的目标是每次在输入字段中输入不同的数字但我现在只是没有得到任何地方。这是我的，有人可以请提供一些指导我做错了什么？将变量传递给Google Piechart

的Javascript

<script type="text/javascript" src="https://www.google.com/jsapi"></script> 

    <script type="text/javascript"> 
     google.load('visualization', '1', {packages: ['corechart']}); 
    </script> 

    <script type="text/javascript"> 
     function numbers(){ 
      var work_field = document.forms['work_form']['work_n_field'].value; 
      var work_div = document.getElementById('number-work'); 
      var numberschart = work_div.innerHTML = work_field; 
      return false; 
     }; 

     function drawVisualization() { 
      // Create and populate the data table. 
     var data = new google.visualization.DataTable(); 
     data.addColumn('string', 'Task'); 
     data.addColumn('number', 'Hours per Day'); 
     data.addRows(5); 
     data.setValue(0, 0, 'Work'); 
//Right here is where I pass my variable into the chart 
     data.setValue(0, 1, numberschart); 
//And I leave the rest here until I define more input field. 
     data.setValue(1, 0, 'Eat'); 
     data.setValue(1, 1, 2); 
     data.setValue(2, 0, 'Commute'); 
     data.setValue(2, 1, 2); 

     // Create and draw the visualization. 
     new google.visualization.PieChart(document.getElementById('visualization')). 
      draw(data, { 
      title:"Mortgage Rates", 
      colors: ['#a4b12d', '#818e0a', '#5c6601', '#f0fd79', '#dbe864'], 
      }); 
     }  
     google.setOnLoadCallback(drawVisualization); 
    </script>

的Html

<div id="visualization" style="width: 400px; height: 300px;"></div> 
    <form name="work_form" onsubmit="return numbers()"> 
    <label id="n-work-label">Work</label><input name="work_n_field"/> 
    <button name="submit" id="submit" value="submit" onclick="numbers()">Submit</button> 
    </form> 
    <div id="number-work"></div> 
    </div>

任何帮助是极大的赞赏，感谢您

我也把它添加到爵士小提琴，但图表添加到资源之时似乎没有检测到它。 http://jsfiddle.net/pkCCa/

来源

2012-04-12 user874185

这为我工作：

<!DOCTYPE html> 
<html lang="en"> 
    <head> 
     <meta charset="utf-8" /> 
     <title>Example</title> 
     <script type="text/javascript" src="https://www.google.com/jsapi"></script> 
     <script type="text/javascript"> 
       var numberschart = 10; //<- Initial value 
       google.load('visualization', '1', {packages: ['corechart']}); 

       function numbers(){ 
         var work_field = document.forms['work_form']['work_n_field'].value; 
         var work_div = document.getElementById('number-work'); 
         numberschart = work_div.innerHTML = work_field; 
         drawVisualization(); 
         return false; 
       }; 

       function drawVisualization() { 
        // Create and populate the data table. 
        var data = new google.visualization.DataTable(); 
        data.addColumn('string', 'Task'); 
        data.addColumn('number', 'Hours per Day'); 
        data.addRows(5); 
        data.setValue(0, 0, 'Work'); 
        //data.setValue(0, 1, 11); 
        data.setValue(0, 1, parseInt(numberschart));//<- The value you get from input field is a string, Google API will throw an error 
        data.setValue(1, 0, 'Eat'); 
        data.setValue(1, 1, 2); 
        data.setValue(2, 0, 'Commute'); 
        data.setValue(2, 1, 2); 

        // Create and draw the visualization. 
        new google.visualization.PieChart(document.getElementById('visualization')). 
         draw(data, { 
          title:"Mortgage Rates", 
          colors: ['#a4b12d', '#818e0a', '#5c6601', '#f0fd79', '#dbe864'], 
          animation:{ 
           duration:1000, 
           easing: 'out', 
          }, 
          vAxis: { 
           minValue:0, 
           maxValue:1000 
          }, 
         }); 
        }  
       google.setOnLoadCallback(drawVisualization); 
     </script> 
    </head> 
    <body> 
     <div id="visualization" style="width: 400px; height: 300px;"></div> 
     <form name="work_form" onsubmit="return false"> 
      <label id="n-work-label">Work</label><input name="work_n_field"/> 
      <button name="submit" id="submit" value="submit" onclick="numbers();return false;">Submit</button> 
     </form> 
     <div id="number-work"></div> 
    </body> 
</html>

来源

2012-04-12 01:47:39

感谢这个得很完美！ – user874185 2012-04-12 02:54:01

顺便说一句，我只是想出了动画不适用于PieCharts :-( – 2012-04-12 02:56:38

是的，我知道，这吸吮它does not – user874185 2012-04-13 20:31:27

试试这个：

http://jsfiddle.net/schawaska/pkCCa/2/

注意：它不是jsfiddler要去工作，因为你正在使用的键不为他们的域名。尝试在你的环境，让我知道

来源

2012-04-12 01:38:02 MilkyWayJoe

将变量传递给Google Piechart

回答

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