jQWidgets jqxKnob 指针属性

jQWidgets 是一个JavaScript框架，用于为PC和移动设备制作基于网络的应用程序。它是一个非常强大的、优化的、与平台无关的、并被广泛支持的框架。_jqxKnob 用于表示一个具有圆形的jQuery插件，并在指定值的范围内显示一个可拖动的指标。这个API也可以用在表格或矩阵中，用于显示一个字段在指定的数据区域的数值范围内的相对值。

pointer 属性用于设置或获取指定jqxKnob的指针属性。

语法:

用于设置pointer属性。

$('#jqxKnob').jqxKnob({pointer: {
    type: 'arrow',
    style: { fill: 'green' },
    size: '68%',
    offset: '29%',
    thickness: 15
}});

用于获取pointer属性。

var allowValueChangeOnClick = $('#jqxKnob').jqxKnob('pointer');

链接的文件：从给出的链接中下载https://www.jqwidgets.com/download/。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.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxbuttons.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdraw.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxknob.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxnumberinput.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqx-all.js”></script>

例子：下面的例子说明了jQWidgets jqxKnob pointer 属性。

<!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.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdraw.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxknob.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxnumberinput.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqx-all.js">
    </script>
</head>
  
<body>
    <center>
        <h1 style="color:green;">
            GeeksforGeeks
        </h1>
        <h3>
            jQWidgets jqxKnob pointer Property
        </h3>
        <div id='jqx_Knob'>
        </div>
        <script type="text/javascript">
             $(document).ready(function () {$ ('#jqx_Knob').jqxKnob({
                    value: 5,
                    min: 0,
                    max: 50,
                    width: 300,
                    startAngle: 0,
                    endAngle: 360,
                    snapToStep: true,
                    marks: {
                        colorRemaining: { color: 'red' },
                        colorProgress: { color: 'green' },
                        offset: '70%',
                        thickness: 5,
                        size: '4%'
                    },
                    labels: {
                        offset: '85%',
                        step: 5
                    },
                    progressBar: {
                        style: {
                            fill: 'yellow',
                            stroke: 'black'
                        },
                        size: '8%',
                        offset: '61%',
                        background: { fill: 'black' }
                    },
                    pointer: {
                        type: 'arrow',
                        style: { fill: 'green' },
                        size: '68%',
                        offset: '29%',
                        thickness: 15
                    }
                });
            });
        </script>
    </center>
</body>
  
</html>

输出:

jQWidgets jqxKnob 指针属性