jQWidgets jqxChart backgroundImage属性用法及代码示例

jQWidgets是一个 JavaScript 框架，用于为 PC 和移动设备制作基于 Web 的应用程序。它是一个非常强大且优化的框架，独立于平台，并且得到广泛支持。jqx图表是一个轻量级且函数强大的图表小部件，100% 用 JavaScript 编写。它提供了许多高级函数并支持三种不同的渲染技术 -SVG,HTML5 画布，和VML。

backgroundImage 属性用于设置图表的背景图像。该属性接受字符串类型值，其默认值为空 (”)。

用法:

设置背景图属性。

$('Selector').jqxChart({backgroundImage: 'image.jpg'});

要刷新图表的元素：

$('Selector').jqxChart('refresh');

链接文件：下载jQWidgets从链接。在 HTML 文件中，找到下载文件夹中的脚本文件：

<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>

例子：下面的例子说明了jqxChartbackgroundImage 属性在 jQWidgets 中。

HTML


<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <link rel="stylesheet" type="text/css"
          href="jqwidgets/styles/jqx.base.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 backgroundImage Property 
        </h3> 
        <div id='chartContainer' 
             style="width:700px;  
                    height:500px"> 
        </div> 
    </center> 
    <script type="text/javascript"> 
        $(document).ready(function() { 
            var Data = [{ 
                name: 'A', 
                ques: 1, 
            }, { 
                name: 'B', 
                ques: 1, 
            }, { 
                name: 'C', 
                ques: 3, 
            }, { 
                name: 'D', 
                ques: 21, 
            }]; 
            
            // Prepare jqxChart settings 
            var settings = { 
                backgroundImage:  
'https://media.geeksforgeeks.org/wp-content/cdn-uploads/gfg_200x200-min.png', 
                showLegend: true, 
                enableCrosshairs: false, 
                enabled: false, 
                title: "Coding Questions", 
                description: "Solved Daily", 
                source: Data, 
                categoryAxis: { 
                    dataField: 'name' 
                }, 
                seriesGroups: [{ 
                    type: 'line', 
                    orientation: 'horizontal', 
                    columnsGapPercent: 10, 
                    valueAxis: { 
                        unitInterval: 10, 
                        maxValue: 15, 
                        displayValueAxis: true, 
                        description: '', 
                    }, 
                    series: [{ 
                        dataField: 'ques', 
                        displayText: 'Question Solved' 
                    }] 
                }] 
            }; 
            $('#chartContainer').jqxChart(settings); 
        }); 
    </script> 
</body> 
</html>

输出：

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

相关用法

注：本文由纯净天空筛选整理自vkash8574大神的英文原创作品 jQWidgets jqxChart backgroundImage Property。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。