jQWidgets jqxChart getItemCoord() Method

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jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful and optimized framework, platform-independent, and widely supported. jqxChart is a lightweight and powerful chart widget written 100% in javascript. It offers many advanced features and supports three different rendering technologies – SVG, HTML5 Canvas & VML.

The getItemCoord() method is used to get the coordinates for a data point. It takes the groupIndex, serieIndex, and itemIndex type as parameters of the number type, and returns the coordinates as an object type.

Syntax:

var getItemCoord = chartInstance.getItemCoord(0, 1, position);

Linked Files: Download jQWidgets from the 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-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>

Example: The below example illustrates the jqxHeatMap getItemCoord() method in jQWidgets:

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/jqxchart.api.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"> 
          zambiatek 
        </h1> 
        <h3>jQWidgets jqxChart getItemCoord() method</h3> 
        <div class='default'></div> 
        <button id='gfg'>Click Here</button> 
  
        <div id='gfg1' style="width:600px; height: 400px"/> 
    </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, 
                toolTipMoveDuration: 1000, 
                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' } 
                    ] 
                }] 
            }; 
            
            $('#gfg1').jqxChart(obj); 
  
             $('#gfg').click(function () { 
                var chartInstance =  
                    $('#gfg1').jqxChart('getInstance'); 
  
                var xval = chartInstance.getItemCoord(0, 1, 1);  
                console.log(xval); 
            }); 
        }); 
    </script> 
</body> 
  
</html>

Output:

Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxchart/jquery-chart-api.htm

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