图片柱形图ECharts Gallery

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代码
var bgImg = 'data:image/png;base64,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';
var fillImg = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADQAAAF+CAYAAADNzDlVAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAABFhJREFUeNrs3U+O1DgUgHHblUFzhb7GCCHNtnfMFUasOA9HYEWfAQlpZq6AEOIIdPcFZgMVe5L6Q6pLzQjFLZK2fpZSKbVioQ8n9b68+Dnxz39fXYYYrkIIF+Fxt5the5kagQkHhtepEZhvUCk01tLh3Gul3aZQwovxSwMwn8cfhW74+Lul66jJawgQIEB1QJfDdj1s5ZFvI8NzLsfluByX43KAlmzjKRdyTkYIEJeb6XK5JC7H5bhchculmLmcOASoAqjPGyMEiMtVuFyMhctxOS5X4XKlRC4nDgECBIjLLeVyXSnpqhQux+W43FyXi/Jy4hCgKqC+74wQIC5XkZdLKcvLcTkuV+FyOScuJw4Bmt/MlwPE5WprH4LaBy7H5WpcbvjgcuIQIECAuByXe0iXy4eJtOONXilx2NJh238PIYbpmPP9qvpc7O5YU+r351/KB9hyAl7C3WPO9+vqs3O5hkZocrn9H+PJwdP3Y87h/n9sNX24HKBFgLaesQLiclUul9Q+yMvJy1Xl5bLaB3EIUE3biVzvGSsgLjfb5Yb7ci7H5bhchcvFWLicOAQIECAux+W43P1QXcmpuWuotbyc2gdxCFBF29c+FHk5QFzOfDl5OS63jMsFtQ/iECBAgLgcl+Ny34PqcoMrot+cFkzEWIbtuN9/H0/R/yuyWFGf2zR8vBiLIHa5hTsFE3FGkcWifT4Pey63fqDt9hemsOYWSylGaM2t++P6zWUjS7KNuZGX1pdbO5S83Mqb9eXEIUC1gfV4r2GEAP08IHk5LsfluNzkcsEzVnEIULXLFS4HiMvNdrnh+uFyXI7LVbhcTN7hJQ4BqnU5eTlAXG6+y/XbjstxOS5X4XJ93nA5cQhQrcupYwXE5Wa7XLRWMJfjclUuV6wVLA4BAgSIyy3ncl0p6aoULsfluNxcl4vRM1ZxCBAgQFxuybWC25ov1+Wc2nK543tOj/tpeYxpOz9mzX3GERpd7uI4PWZcGuO8Hf82vSr07n5FfW7TZrPlcuIQoAqgL19+NUKAuFyFyw1xyDPWVbtci9dQY/Pl+o7LiUOA5rdD7cPGCAHicubLcTkut4jLmS8nDgF6CJdT+wCIy3kfK5fjcsu43HA/xOXEIUCVLnffhAYjBIjL/ZjLZevLcTkuV+Vyyfpy4hCgKqCvX58YIUBcbr7Lxd8/vb1u6Gf7hstxuZ/tcp6xikOAAAHicubLPYz2BHk5LsfluJzA+tja7hlrr/YBEJeb63Lx2cd38nJcjstVuFyyvpw4BAgQIC7H5bgcl3u0Lpd77/AShwBVNGuSAOJylS739MNf7blcSv1+uFI+LFmbT5avzbv/gOmY8/2q+lzc+ZWbqvZPK76OS9duvrNfV5/2XG4YMS4nDgECBIjLcbmHdLmGzjh5OS7H5cShxoGsLweIy1W63G/v/+FyXI7LVbic+XLiECBAgLgcl+NyXI7LrcXlYilFHAIEaH77T4ABAKzsRPWz+TQ7AAAAAElFTkSuQmCCgg';


var data = [{
    name: '初级',
    value: 2154
}, {
    name: '中级',
    value: 3000
}, {
    name: '高级',
    value: 2357
}];
var maxData = [];
var maxNumArray = [];
data.forEach(function(value, index) {
    maxNumArray.push(value.value);
})
data.forEach(function(value, index) {
    var num;
    maxData.push({
        name: value.name,
        value: Math.max.apply(null, maxNumArray)
    });
})
var scale = 1;
//富文本配置
var rich = {
    white: {
        color: "#fff",
        align: 'left',
        fontSize: 18 * scale,
        padding: [0, 0]
    },
};
var option = {
    backgroundColor: '#031f2d',
    grid: {
        left: '3%',
        right: '6%',
        bottom: '3%',
        containLabel: true
    },
    yAxis: [{
        type: 'value',
        splitLine: {
            show: false
        },
        axisLine: {
            // show: false,
            lineStyle: {
                color: '#0b5263'
            }
        },
        axisTick: {
            show: true,
            inside: true,
            length: 10 * scale
        },
        axisLabel: {
            textStyle: {
                fontSize: 14 * scale
            }
        },
    }],
    xAxis: [{
        type: 'category',
        data: ['初级', '中级', '高级'],
        boundaryGap: ['20%', '20%'],
        splitLine: {
            show: false
        },
        axisLine: {
            // show: false,
            lineStyle: {
                color: '#0b5263'
            }
        },
        axisTick: {
            show: false
        },
        axisLabel: {
            //   rotate: 45,
            padding: [15, 0, 0, 0],
            textStyle: {
                fontSize: 16 * scale,
                color: '#3fdaff'
            }
        }
    }],
    series: [{
        name: '100',
        type: 'pictorialBar',
        stack: '总量',
        z: 3,
        barWidth: '45%',
        data: data,
        symbol: 'image://'+ fillImg,
        symbolClip: true,
            symbolSize: [52, '100%']
    }, {
        name: '占位',
        type: 'pictorialBar',
        barWidth: '45%',
        barGap: '-100%',
        silent: true,
        label: {
            normal: {
                show: true,
                position: "top",
                distance: 20 * scale,
                formatter: function(params) {
                    var stuNum = 0;
                    data.forEach(function(value, index, array) {
                        if (params.name == value.name) {
                            stuNum = value.value;
                        }
                    })
                    return stuNum + '{white| 人}';
                },
                textStyle: {
                    color: "#ffc72b",
                    fontSize: 20 * scale
                },
                rich: rich
            }
        },
        symbol: 'image://'+ bgImg,
        symbolClip: true,
        symbolSize: [52, '100%'],
        data: maxData
    }]
};
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