jQWidgets jqxChart getValueAxisRect() 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。

getValueAxisRect() 方法用于获取值轴的矩形坐标。它以 groupIndex 类型的值作为参数，数字类型的值，并返回对象类型的值。

句法：

var getValueAxisRect= chartInstance.getValueAxisRect(0);

链接文件：从链接下载 https://www.jqwidgets.com/download/。在 HTML 文件中，找到下载文件夹中的脚本文件：

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

HTML

  

    
    
    
    
    
    
    
    
    
    
    
    
    

  

    
        
          GeeksforGeeks
        
        
        jQWidgets jqxChart getValueAxisRect() method
  
        Click Here
  
        
    
     
    
        $(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.getValueAxisRect(0); 
                console.log(xval);
            });
        });
    

  

输出：

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