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  • Echarts图表常用功能配置,Demo示例

    先看下效果图:

    就如上图所示,都是些常用的基本配置。 Legend分页,X轴设置,Y轴设置,底部缩放条设置, 数值显示样式设置,工具箱设置,自定义工具按钮, 绑定点击事件等等。这些配置代码中都做了简单的注释。下面看下代码,代码总共分为了3个js文件,分别如下:

    1.    option.js

    let option = {
    
        // 标题配置
        title: {
            text: '这是一个演示用例',
            textStyle: {
                color: '#666',  //标题字体颜色
                fontSize: 18    //标题字体大小
            },
            show: true,
            x: 'center'     //水平居中
        },
    
        // 画布边距设置
        grid: {
            left: '5%',
            right: '10%',
            bottom: '15%',
            containLabel: true
        },
    
        // 提示配置
        tooltip: {
            trigger: 'axis',
            axisPointer: {
                type: 'shadow'  // 阴影模式
            }
        },
    
        // 图例配置
        legend: {
            data: [
                '出货量', '进货量', '售出量', '测试一', '测试二', '测试三', '测试四', '测试五', '测试六', '测试七',
                '测试八', '测试九', '测试十', '复试一', '复试二', '复试三', '复试四', '复试五', '复试六', '复试七',
                '复试八', '复试九', '复试十', '补位一', '补位二', '补位三', '补位四', '补位五', '补位六', '补位七'
            ],
            selected: {
                '出货量': true, '进货量': true, '售出量': true, '测试一': false, '测试二': false, '测试三': false, 
                '测试四': false, '测试五': true, '测试六': false, '测试七': false, '测试八': false, '测试九': false, 
                '测试十': false, '复试一': false, '复试二': true, '复试三': false, '复试四': false, '复试五': false, 
                '复试六': false, '复试七': false, '复试八': false, '复试九': false, '复试十': false, '补位一': false, 
                '补位二': false, '补位三': false, '补位四': false, '补位五': false, '补位六': false, '补位七': false
            },
            show: true,
            type: 'scroll',     //启用翻页模式
            orient: 'vertical', //纵向显示
            right: 15,
            top: 45,
            backgroundColor: '#eee',
            padding: 10
        },
    
        // 工具箱配置
        toolbox: {
            feature: {
    
                // 自定义工具按钮,注:自定义按钮必须以 my 开头
                myTool: {
                    show: true,
                    title: '自定义扩展方法',
                    icon: 'image://http://echarts.baidu.com/images/favicon.png',    //注: image:// 这个是固定格式,后面跟图片地址
                    onclick: () => {
                        alert('您刚刚点击了自定义工具按钮!');
                    }
                },
    
                // 显示数据视图
                dataView: {
    
                    // 只读,注:只读模式下不会出现【刷新】按钮,只显示【关闭】按钮
                    readOnly: true,
    
                    // 重写数据视图样式,改为表格(默认是一个多行文本框,即:<textarea>)
                    optionToContent: (opt) => {
                        let axisData = opt.xAxis[0].data,
                            series = opt.series,
                            html = '<table class="echarts-table"><thead><tr><th>系列/月份</th>';
    
                        // 表头
                        for(let th of axisData) {
                            html += `<th>${th}</th>`;
                        }                   
                        html += '</tr></thead><tbody>';
    
                        // 表体
                        for(let tr of series) {
                            html += `<tr><td>${tr.name}</td>`;
                            for(let td of tr.data) {
                                html += `<td>${td}</td>`;
                            }
                            html += '</tr>';
                        }
                        html += '</tbody></table>';
                        return html;              
                    }
                },
    
                // 线形图和柱状图的切换
                magicType: {
                    type: ['line', 'bar'],
                    title: {
                        line: '折线图',
                        bar: '柱状图',
                    }
                },
    
                restore: {},        // 还原
                saveAsImage: {}     // 保存为图片
            }
        },
    
        // X轴配置
        xAxis: {
            name: '( 月份 )',
            type: 'category',
            axisLabel: {
                rotate: 30  // X轴文字旋转角度
            },
            data: ['一月', '二月', '三月', '四月', '五月', '六月', '七月', '八月', '九月', '十月', '十一月', '十二月']
        },
    
        // Y轴配置
        yAxis: {
            name: '( 这是Y轴名称:数值 )',
            nameLocation: 'middle',         // 居中
            nameGap: 60,                    // 与轴线之间的间距
            nameRotate: 90,                 // 字体旋转角度
            type: 'value',
    
            // Y轴线条设置
            axisLine: {
                show: true,
                lineStyle: {
                    type: 'solid'
                }
            },
    
            // Y轴分割线设置
            splitLine: {
                show: true,
                lineStyle: {
                    color: '#ddd',
                    type: 'solid'
                }
            }
        },
    
        // 底部缩放条配置
        dataZoom: [{
            type: 'slider',
            start: 0,
            end: 50,
            bottom: 0,
            show: true
        }],
    
        // 系列数据配置
        series: [{
            name: '出货量',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '进货量',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'line',
            label: {
                show: true
            }
        }, {
            name: '售出量',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试一',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试二',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试三',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试四',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试五',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试六',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试七',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试八',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试九',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '测试十',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试一',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试二',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试三',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试四',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试五',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试六',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试七',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试八',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试九',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '复试十',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '补位一',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '补位二',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '补位三',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '补位四',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '补位五',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '补位六',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }, {
            name: '补位七',
            data: [820, 932, 901, 934, 1290, 1330, 1320, 901, 934, 1290, 1330, 1320],
            type: 'bar',
            label: {
                show: true
            }
        }]
    };
    
    export default option;

    2.   demo.js

    // 示例图-操作类
    export default class Demo {
    
        // 构造函数
        constructor(option, echarts) {
            this.option = option;
            this.echarts = echarts;
        }
    
        // 初始化图表
        init() {
            this.echarts.setOption(this.option, true);
        }
    
        // X轴坐标文字旋转角度
        xTextRotate(deg) {
            this.option.xAxis.axisLabel.rotate = parseInt(deg, 10);
            this.init();
        }
    
        // 系列数值的显示位置
        seriesLabelPosition(position) {
            let series = this.option.series;
            let newSeries = series.map((item) => {
                item.label.position = position;
                return item;
            });
            this.option.series = newSeries;
            this.init();
        }
    
        // 系列数值是否显示
        seriesLabelDisplay(mark) {
            let series = this.option.series;
            let newSeries = series.map((item) => {
                item.label.show = mark;
                return item;
            });
            this.option.series = newSeries;
            this.init();
        }
    
        // 系列数值 %
        seriesLabelWithPercent(mark) {
            let series = this.option.series;
            let newSeries = series.map((item) => {            
                item.label.formatter = mark ? '{c}%' : '{c}';
                return item;
            });
            this.option.series = newSeries;
            this.init();
        }
    
        // 系列数值旋转
        seriesLabelRotate(deg) {
            let series = this.option.series;
            let newSeries = series.map((item) => {            
                item.label.rotate = parseInt(deg, 10);
                return item;
            });
            this.option.series = newSeries;
            this.init();
        }
    
        // 底部拖动条是否显示
        dataZoomDisplay(mark) {
            if(mark) {
                this.option.dataZoom[0].show = true;
                this.option.dataZoom[0].end = 50;
            } else {
                this.option.dataZoom[0].show = false;
                this.option.dataZoom[0].end = 100;
            }
            this.init();
        }
    
        // 提示模式
        tooltipModel(model) {
            this.option.tooltip.axisPointer.type = model;
            this.init();
        }
    
        // Y轴线条
        yLineStyle(style) {
            if(style === 'none') {
                this.option.yAxis.axisLine.show = false;
            } else {
                this.option.yAxis.axisLine.show = true;
                this.option.yAxis.axisLine.lineStyle.type = style;
            }
            this.init();
        }
    
        // Y轴分割线
        ySplitLineStyle(style) {
            if(style === 'none') {
                this.option.yAxis.splitLine.show = false;
            } else {
                this.option.yAxis.splitLine.show = true;
                this.option.yAxis.splitLine.lineStyle.type = style;
            }
            this.init();
        }
    
        // 绑定事件
        bindEvent(eventName, eventAction) {
            this.echarts.on(eventName, eventAction);
        }
    
        // 自适应调整
        resize() {
            this.echarts.resize();
        }
    }

    3.   index.js

    import echarts from 'echarts';
    import option from './option';
    import Demo from './demo';
    
    // 根据id获取元素
    let $ = id => document.getElementById(id);
    
    // 初始化图表
    let demo = new Demo(option, echarts.init($('echarts')));
    demo.init();
    
    // 是否显示数值
    $('sel1').addEventListener('change', (e) => {
        demo.seriesLabelDisplay(e.target.value === '1');
    });
    
    // 数值显示位置
    $('sel2').addEventListener('change', (e) => {
        demo.seriesLabelPosition(e.target.value);
    });
    
    // 数值 %
    $('sel3').addEventListener('change', (e) => {
        demo.seriesLabelWithPercent(e.target.value === '1');
    });
    
    // X轴文字旋转角度
    $('sel4').addEventListener('change', (e) => {
        demo.xTextRotate(e.target.value);
    });
    
    // 底部拖动条是否显示
    $('sel5').addEventListener('change', (e) => {
        demo.dataZoomDisplay(e.target.value === '1');
    });
    
    // 设置提示模式
    $('sel6').addEventListener('change', (e) => {
        demo.tooltipModel(e.target.value);
    });
    
    // Y轴线条
    $('sel7').addEventListener('change', (e) => {
        demo.yLineStyle(e.target.value);
    });
    
    // 数值旋转
    $('sel8').addEventListener('change', (e) => {
        demo.seriesLabelRotate(e.target.value);
    });
    
    // Y轴分割线
    $('sel9').addEventListener('change', (e) => {
        demo.ySplitLineStyle(e.target.value);
    });
    
    // 绑定点击事件
    demo.bindEvent('click', (param) => {
        alert(`${param.name} - ${param.seriesName} - ${param.data}`);
    });
    
    // 浏览器窗口大小改变时,图表自适应
    window.addEventListener('resize', () => { demo.resize(); });

    option.js 是echarts的配置项,单独一个配置对象。 demo.js是一个类,里面定义了一些方法用来操作图表,改变图表的一些样式和 行为。 index.js是实际页面调用的js文件,它引入了option.js 和 demo.js。因为用了webpack 进行打包,打包后的文件名为bundle.js,所以index.html文件只引用了一个bundle.js文件。

    index.html

    <!DOCTYPE html>
    <html lang="en">
    
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>Echarts图表示例</title>
        <style>
            .echarts {
                width: 100%;
                height: 700px;
                margin-top: 50px;
                padding-bottom: 10px;
            }
            .operate {
                margin-top: 50px;
                min-height: 100px;
                background-color: #eee;
                padding: 20px;
                border: 1px solid #69a5e9;
            }
            select, button {
                padding: 10px;
                width: 180px;
                margin: 5px 10px;
            }
            .echarts-table {
                width: 100%;
                border-collapse: collapse;
            }
            .echarts-table thead {
                background-color: #eee;
            }
            .echarts-table th, .echarts-table td {
                border: 1px solid #ddd;
                text-align: center;
                padding: 10px 0;
            }
        </style>
    </head>
    
    <body>
        <div id="echarts" class="echarts"></div>
        <div class="operate">
            <select name="sel1" id="sel1">
                <option value="1">显示数值</option>
                <option value="0">隐藏数值</option>
            </select>
            <select name="sel2" id="sel2">
                <option value="inside">数值内部显示:居中</option>
                <option value="insideBottom">数值内部显示:底部</option>
                <option value="top">数值外部显示:顶部</option>
            </select>
            <select name="sel3" id="sel3">
                <option value="0">数值隐藏 %</option>
                <option value="1">数值添加 %</option>
            </select>
            <select name="sel4" id="sel4">
                <option value="0">X轴文字旋转 00 度</option>
                <option value="30" selected>X轴文字旋转 30 度</option>
                <option value="60">X轴文字旋转 60 度</option>
                <option value="90">X轴文字旋转 90 度</option>
            </select>
            <select name="sel5" id="sel5">
                <option value="1">显示底部拖动条</option>
                <option value="0">隐藏底部拖动条</option>
            </select>
            <select name="sel6" id="sel6">
                <option value="shadow">tooltip:阴影模式</option>
                <option value="line">tooltip:线条模式</option>
                <option value="cross">tooltip:交叉模式</option>
            </select>
            <select name="sel7" id="sel7">
                <option value="none">Y轴线条:隐藏</option>
                <option value="solid" selected>Y轴线条:实线 solid</option>
                <option value="dashed">Y轴线条:虚线 dashed</option>
                <option value="dotted">Y轴线条:虚线 dotted</option>
            </select>
            <select name="sel8" id="sel8">
                <option value="0">数值旋转 00 度</option>
                <option value="30">数值旋转 30 度</option>
                <option value="60">数值旋转 60 度</option>
                <option value="90">数值旋转 90 度</option>
            </select>
            <select name="sel9" id="sel9">
                <option value="none">Y轴分割线:隐藏</option>
                <option value="solid" selected>Y轴分割线:实线 solid</option>
                <option value="dashed">Y轴分割线:虚线 dashed</option>
                <option value="dotted">Y轴分割线:虚线 dotted</option>
            </select>
        </div>
        <script src="bundle.js"></script>
    </body>
    
    </html>

    以上就是所有的代码了,用的ES6的语法。echarts 工具箱 (toolbox) 中的数据视图按钮点击后出现的数据视图我嫌弃它太丑了,所以重新写了样式。默认情况下它是一个可编辑的多行文本框,在option.js中重新拼成了table。 效果如下图:

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  • 原文地址:https://www.cnblogs.com/similar/p/9157808.html
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