Ext.js - 折線圖

此圖表用於表示折線圖格式中的資料。這是一張笛卡爾座標系圖。

語法

以下是簡單的語法。

Ext.create('Ext.chart.CartesianChart',{
   series: [{
      type: 'line',
      xField: 'name',
      yField: 'G1'
   }]
   render, legend and other properties
});

示例

以下是展示折線圖用法的簡單示例。

即時演示

<!DOCTYPE html>
<html>
   <head>
      <link href = "https://cdnjs.cloudflare.com/ajax/libs/extjs/6.0.0/classic/theme-classic/resources/theme-classic-all.css" 
         rel = "stylesheet" />
      <script type = "text/javascript" 
         src = "https://cdnjs.cloudflare.com/ajax/libs/extjs/6.0.0/ext-all.js"></script>
      <script type = "text/javascript" 
         src = "https://cdnjs.cloudflare.com/ajax/libs/extjs/6.0.0/packages/charts/classic/charts.js"></script>
      <link href = "https://cdnjs.cloudflare.com/ajax/libs/extjs/6.0.0/packages/charts/classic/classic/resources/charts-all.css" 
         rel = "stylesheet" />
      
      <script type = "text/javascript">
         Ext.onReady(function() {
            Ext.create('Ext.chart.CartesianChart', {
               renderTo: document.body,
               width: 600,
               height: 200,
               
               store: {
                  fields: ['name', 'g1', 'g2'],
                  data: [
                     {"name": "Item-0", "g1": 57, "g2": 59},
                     {"name": "Item-1", "g1": 45, "g2": 50},
                     {"name": "Item-2", "g1": 67, "g2": 43},
                     {"name": "Item-3", "g1": 45, "g2": 18},
                     {"name": "Item-4", "g1": 30, "g2": 90}
                  ]
               },
               legend: {
                  docked: 'bottom'
               },

               //define x and y axis.
               axes: [{
                  type: 'numeric',
                  position: 'left'
               }, {
                  type: 'category',
                  visibleRange: [0, 1],
                  position: 'bottom'
               }],

               //define the actual series
               series: [{
                  type: 'line',
                  xField: 'name',
                  yField: 'g1',
                  title: 'Normal'
               }, {
                  type: 'line',
                  xField: 'name',
                  yField: 'g2',
                  title: 'Smooth'
               }]
            });
         });
      </script>
   </head>
   
   <body>
   </body>
</html>

以上程式將產生以下結果 −

extjs_components.htm

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