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jQWidgets jqxKnob marks Property

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  • Last Updated : 28 Nov, 2021

jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful, optimized, platform-independent, and widely supported framework. The jqxKnob is used for representing a jQuery plugin having a round shape and displaying a draggable indicator within a range of the specified values. This API can also be used in a table or matrix for showing the relative value of a field in a range of values in the specified data region. This API supports HTML5, SVG, & VML rendering.

The marks property is used for setting or getting the marks property for the specified jqxKnob. It is of the object type & its default value is null.

Syntax:

  • For setting the marks property:
$('#jqxKnob').jqxKnob({
    marks: {
        colorRemaining: { color: 'red' },
        colorProgress: { color: 'green' },
        offset: '70%',
        thickness: 5,
        size: '4%'
    }
});
  • For getting the marks property:
var allowValueChangeOnClick = $('#jqxKnob').jqxKnob('marks');

There are several properties of Knob’s marks property, that are given below:

  • colorProgress: It is used to represent the hex color string.
  • colorRemaining:  It is also used to represent the hex color string.
  • drawAboveProgressBar: It is used to draw the marks with a z-index higher than the progress bar.
  • minorInterval: It shows the minor ticks interval.
  • majorInterval: It shows the major ticks interval.
  • majorSize: It shows a major tick’s size that specifies the radius in case of circular lines, or length in case of lines.
  • offset: It is used to specify the labels offset.
  • size: It is used to specify the radius in the case of circular lines or length in the case of lines.
  • type: It can be of “circle” or “line” type.
  • thickness: It is used to specify thickness in the case of lines.
  • visible: It is used to determine the label’s visibility.

 

Linked Files: Download jQWidgets from the given link. In the HTML file, locate the script files in the downloaded folder.

<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>

Example: The below example illustrates the jQWidgets jqxKnob marks property.

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.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 marks 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>


Output:

Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxknob/jquery-knob-api.htm?search=


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