jQWidgets jqxChart getXAxisRect() 方法

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。它是一个非常强大和优化的框架，独立于平台，并且被广泛支持。 jqxChart是一个轻量级且功能强大的图表小部件，100% 用 JavaScript 编写。它提供了许多高级功能并支持三种不同的渲染技术——SVG、HTML5 Canvas 和 VML。

getXAxisRect() 方法用于获取 x 轴的矩形坐标。它以单个数字类型值groupIndex作为参数，并返回一个包含矩形数据的对象。

句法：

var getXAxisRect = chartInstance.getXAxisRect(0);

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

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示例：下面的示例说明了 jQWidgets 中的 jqxHeatMap getXAxisRect() 方法：

HTML

  

    
    
      
    
      
    
      
    
      
    
      
    
      

  

    
        
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        jQWidgets jqxChart getXAxisRect() method
        
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        $(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.getXAxisRect(0); 
                console.log(xval);
            });
        });
    

  

输出：

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