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easy-layui-admin
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echarts-bar-label-rotation.html

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <title>Easy Layui Admin后台管理</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" href="plugin/layui/css/layui.css" media="all">
    <link rel="stylesheet" href="css/style.css">
    <script type="text/javascript" src="js/jquery.min.js"></script>
    <script type="text/javascript" src="plugin/layui/layui.js"></script>
    <script type="text/javascript" src="js/echarts.min.js"></script>
</head>

<body>

    <div class="admin-content-box-nav">
        <span class="layui-breadcrumb" lay-filter="breadcrumb" style="visibility:visible;">
            <a href="javascript:;">首页</a><span lay-separator="">/</span>
            <a href="javascript:;">统计报表</a><span lay-separator="">/</span>
            <a><cite>柱状图</cite></a>
        </span>
    </div>

    <blockquote class="layui-elem-quote" style="margin:15px;">
        特别声明：ECharts，一个纯 Javascript 的图表库，可以流畅的运行在 PC 和移动设备上，兼容当前绝大部分浏览器（IE8/9/10/11，Chrome，Firefox，Safari等），底层依赖轻量级的
        Canvas
        类库 ZRender，提供直观，生动，可交互，可高度个性化定制的数据可视化图表。WeAdmin提示：如需使用或者详细更多案例可以访问官网 <a href="http://echarts.baidu.com/"
            style="color:red">ECharts</a>。
    </blockquote>

    <!-- 为 ECharts 准备一个具备大小（宽高）的 DOM -->
    <div style="margin:0 15px 15px 15px;">
        <div id="echarts-box" style="width:100%;height:400px;"></div>
    </div>

    <script type="text/javascript">
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('echarts-box'));

        var app = {};
        option = null;

        var posList = [
            'left', 'right', 'top', 'bottom',
            'inside',
            'insideTop', 'insideLeft', 'insideRight', 'insideBottom',
            'insideTopLeft', 'insideTopRight', 'insideBottomLeft', 'insideBottomRight'
        ];

        app.configParameters = {
            rotate: {
                min: -90,
                max: 90
            },
            align: {
                options: {
                    left: 'left',
                    center: 'center',
                    right: 'right'
                }
            },
            verticalAlign: {
                options: {
                    top: 'top',
                    middle: 'middle',
                    bottom: 'bottom'
                }
            },
            position: {
                options: echarts.util.reduce(posList, function (map, pos) {
                    map[pos] = pos;
                    return map;
                }, {})
            },
            distance: {
                min: 0,
                max: 100
            }
        };

        app.config = {
            rotate: 90,
            align: 'left',
            verticalAlign: 'middle',
            position: 'insideBottom',
            distance: 15,
            onChange: function () {
                var labelOption = {
                    normal: {
                        rotate: app.config.rotate,
                        align: app.config.align,
                        verticalAlign: app.config.verticalAlign,
                        position: app.config.position,
                        distance: app.config.distance
                    }
                };
                myChart.setOption({
                    series: [{
                        label: labelOption
                    }, {
                        label: labelOption
                    }, {
                        label: labelOption
                    }, {
                        label: labelOption
                    }]
                });
            }
        };


        var labelOption = {
            normal: {
                show: true,
                position: app.config.position,
                distance: app.config.distance,
                align: app.config.align,
                verticalAlign: app.config.verticalAlign,
                rotate: app.config.rotate,
                formatter: '{c}  {name|{a}}',
                fontSize: 16,
                rich: {
                    name: {
                        textBorderColor: '#fff'
                    }
                }
            }
        };

        option = {
            title: {
                text: '柱状图'
            },
            color: ['#003366', '#006699', '#4cabce', '#e5323e'],
            tooltip: {
                trigger: 'axis',
                axisPointer: {
                    type: 'shadow'
                }
            },
            legend: {
                data: ['Forest', 'Steppe', 'Desert', 'Wetland']
            },
            toolbox: {
                show: true,
                orient: 'vertical',
                left: 'right',
                top: 'center',
                feature: {
                    mark: { show: true },
                    dataView: { show: true, readOnly: false },
                    magicType: { show: true, type: ['line', 'bar', 'stack', 'tiled'] },
                    restore: { show: true },
                    saveAsImage: { show: true }
                }
            },
            calculable: true,
            xAxis: [
                {
                    type: 'category',
                    axisTick: { show: false },
                    data: ['2012', '2013', '2014', '2015', '2016']
                }
            ],
            yAxis: [
                {
                    type: 'value'
                }
            ],
            series: [
                {
                    name: 'Forest',
                    type: 'bar',
                    barGap: 0,
                    label: labelOption,
                    data: [320, 332, 301, 334, 390]
                },
                {
                    name: 'Steppe',
                    type: 'bar',
                    label: labelOption,
                    data: [220, 182, 191, 234, 290]
                },
                {
                    name: 'Desert',
                    type: 'bar',
                    label: labelOption,
                    data: [150, 232, 201, 154, 190]
                },
                {
                    name: 'Wetland',
                    type: 'bar',
                    label: labelOption,
                    data: [98, 77, 101, 99, 40]
                }
            ]
        };

        // 使用刚指定的配置项和数据显示图表。
        if (option && typeof option === "object") {
            myChart.setOption(option, true);
        }
    </script>
</body>

</html>