jQWidgets jqxChart renderEngine屬性用法及代碼示例

jQWidgets 是一個 JavaScript 框架，用於為 PC 和移動設備製作基於 Web 的應用程序。它是一個非常強大和優化的框架，獨立於平台，並且被廣泛支持。 jqxChart 是一個輕量級且函數強大的圖表小部件，100% 用 javascript 編寫。它提供了許多高級函數並支持三種不同的渲染技術——SVG、HTML5 Canvas 和 VML。

renderEngine 屬性用於設置或返回 renderEngine 屬性。即該屬性用於設置或返回用於顯示圖表的渲染引擎。根據瀏覽器的能力，jqxChart 會在沒有設置這個屬性時自動選擇一個最佳的渲染引擎。它接受字符串類型值，默認值為“.

用法:

它用於設置 renderEngine 屬性。

$('Selector').jqxChart({ renderEngine:string});

它用於返回 renderEngine 屬性。

var renderEngine = 
    $('Selector').jqxChart('renderEngine');

鏈接文件：從鏈接下載 jQWidgets。在 HTML 文件中，找到下載文件夾中的腳本文件。

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<script type=”text/javascript” src=”scripts/jquery-1.11.1.min.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxchart.core.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdraw.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>

例：下麵的示例說明了 jQWidgets 中的 jqxChart renderEngine 屬性。

HTML


<!DOCTYPE html>
<html lang="en">
  
<head>
    <link rel="stylesheet" 
          href="jqwidgets/styles/jqx.base.css" 
          type="text/css" />
    <script type="text/javascript" 
            src="scripts/jquery-1.11.1.min.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxchart.core.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdraw.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdata.js">
    </script>
</head>
  
<body>
    <center>
        <h1 style="color:green">
          GeeksforGeeks
        </h1>
        <h3>jQWidgets jqxChart renderEngine property</h3>
        <div class='default'></div>
      <div id='chartContainer'
           style="width:600px;  
           height:400px">
      </div>
    </center>
      
    <script type="text/javascript">
        $(document).ready(function () {
            var  json = [
                    { Day:'Monday', A:3, B:1, C:2, D:1},
                    { Day:'Tuesday', A:3, B:1, C:2, D:1},
                    { Day:'Wednesday', A:3, B:1, C:2, D:1},
                    { Day:'Thursday', A:3, B:1, C:2, D:1},
                    { Day:'Friday', A:3, B:1, C:2, D:1},
                    { Day:'Saturday', A:3, B:1, C:2, D:1},
                    { Day:'Sunday', A:3, B:1, C:2, D:1}
                ];
                  
            var obj = {
                title:"Coding Score",
                description:"Coding Questions Solved Daily",
                source:json,
                renderEngine:'HTML5',
                padding:{ left:50, top:30, right:50, bottom:30 },
                categoryAxis:
                    {
                        dataField:'Day',
                        showGridLines:true
                    },
                seriesGroups:
                    [
                        {
                            type:'column',
                            columnsGapPercent:30,
                            seriesGapPercent:0,
                            valueAxis:
                            {
                                minValue:0,
                                maxValue:10,
                                unitInterval:10,
                                description:'Questions Solved'
                            },
                            series:[
                                    { dataField:'A', displayText:'A'},
                                    { dataField:'B', displayText:'B'},
                                    { dataField:'C', displayText:'C'},
                                    { dataField:'D', displayText:'D' }
                                ]
                        }
                    ]
            };
            $('#chartContainer').jqxChart(obj);
        });
    </script>
</body>
  
</html>

輸出：

參考： https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxchart/jquery-chart-api.htm?search=

相關用法

注：本文由純淨天空篩選整理自GeeksforGeeks大神的英文原創作品 jQWidgets jqxChart renderEngine Property。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。