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jQWidgets jqxTreeMap showLegend Property

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  • Last Updated : 11 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 jqxTreeMap is used for showing the hierarchical data set of nested rectangles. Here each and every branch of the tree is represented as a rectangle, which is then tiled with smaller rectangles that represent sub-branches. Here the rectangle of the leaf node has an area proportional to a specified dimension on the data.

The showLegend property is used for checking whether the legend of the specified jqxTreeMap is visible or not. This property will be effective when the value for the colorMode property is set to “autoColors” or “rangeColors”.

Syntax:

For setting the showLegend property:

$('#jqxTreeMap').jqxTreeMap({ showLegend: true });  

 

For getting the showLegend property:

var showLegend = $('#jqxTreeMap').jqxTreeMap('showLegend'); 

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/jqxtooltip.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxtreemap.js”></script>
<script type=”text/javascript” src=”scripts/gettheme.js”></script>
<script type=”text/javascript” src=”scripts/jqx-all.js”></script>

Example: The below example illustrates the jQWidgets jqxTreeMap showLegend property. In the below example, the value for the showLegend property has been set to true.

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/jqxtooltip.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxtreemap.js">
    </script>
    <script type="text/javascript" 
            src="scripts/gettheme.js">
    </script>
    <script type="text/javascript" 
            src="scripts/jqx-all.js">
    </script>
</head>
  
<body>
    <center>
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
        <h3>
            jQWidgets jqxTreeMap showLegend Property
        </h3>
        <div id="Tree_Map"></div>
        <input type="button" style="margin: 28px;" 
               id="button_for_showLegend"
          value="Value of the showLegend property"/>
        <div id="log"></div>
        <script type="text/javascript">
            $(document).ready(function () {
                var Data_of_TreeMap = [{
                    label: 'GeeksforGeeks',
                    value: 70,
                    color: '#ff0300'
                }, {
                    label: 'is a',
                    value: 10,
                    parent: 'GeeksforGeeks',
                    color: '#ff5400'
                }, {
                    label: 'Computer Science',
                    value: 30,
                    parent: 'GeeksforGeeks',
                    color: '#008000'
                }, {
                    label: 'Portal.',
                    value: 15,
                    parent: 'GeeksforGeeks',
                    color: '#7fbf00'
                }
                ];
                $('#Tree_Map').jqxTreeMap({
                    width: 390,
                    height: 200,
                    source: Data_of_TreeMap,
                    showLegend: true,
                    colorMode: "autoColors"
                });
                $("#button_for_showLegend").
                            jqxButton({
                    width: 300
                });
                $("#button_for_showLegend").click(
                    function () {
                        var showLegend_Value =
                            $('#Tree_Map').
                        jqxTreeMap('showLegend');
                        $("#log").html((
                            showLegend_Value));
                    });
            });
        </script>
    </center>
</body>
  
</html>

Output:

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


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