jQWidgets jqxChart grayScale属性用法及代码示例

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 是一个轻量级且函数强大的图表小部件，100% 用 javascript 编写。它提供了许多高级函数并支持三种不同的渲染技术——SVG、HTML5 Canvas 和 VML。

灰度属性用于设置或返回灰度属性。即此属性用于以灰色显示比例。它接受布尔类型值，其默认值为 false。

用法:

设置灰度属性。

$('Selector').jqxChart({ grayScale:boolean});

返回灰度属性。

var grayScale = $('Selector').jqxChart('grayScale');

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：

<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>

例：下面的例子说明了 jQWidgets 中的 jqxChart 灰度属性：

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/jqxdraw.js"></script>
    <script type="text/javascript"
        src="jqwidgets/jqxdata.js"></script>
</head>
<body>
    <center>
        <h1 style="color:green">
            GeeksforGeeks
        </h1>
        <h3>jQWidgets jqxChart grayScale property</h3>
        <div id='chartContainer'
            style="width:700px; height:500px">
        </div>
    </center>
    <script type="text/javascript">
        $(document).ready(function () {
            var Data = [{
                name:'A',
                ques:1,
            }, {
                name:'B',
                ques:1,
            }, {
                name:'C',
                ques:3,
            }, {
                name:'D',
                ques:21,
            }];
            // Prepare jqxChart settings
            var settings = {
                showLegend:true,
                enableCrosshairs:true,
                grayScale:true,
                title:"Coding Questions",
                description:"Solved Daily",
                source:Data,
                categoryAxis:{
                    dataField:'name'
                },
                seriesGroups:[{
                    type:'line',
                    orientation:'horizontal',
                    columnsGapPercent:10,
                    valueAxis:{
                        unitInterval:10,
                        maxValue:15,
                        displayValueAxis:true,
                        description:'',
                    },
                    series:[{
                        dataField:'ques',
                        displayText:'Question Solved'
                    }]
                }]
            };
            $('#chartContainer').jqxChart(settings);
        });
    </script>
</body>
</html>

输出：

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

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注：本文由纯净天空筛选整理自taran910大神的英文原创作品 jQWidgets jqxChart grayScale Property。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。