eCharts 的 bar 系列

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eCharts bar 系列的配置

在整个过程中踩了很多的坑，不知道是什么原因，barWidth 设置的宽度过大时会使得两个重叠的 bar 系列的宽度不相同，如若有人发现问题所在，欢迎指正。

html中引入指令

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<div data-e-charts data-config="identityData" style="height:200px"></div>

directive.js 参见官网配置

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angular.module('myApp')
    .directive('eCharts', ['app', '$rootScope', function (app, $rootScope) {
        ...
        bar: {
            grid: {
                top: 12,
                left: 16,
                right: '-12%',
                bottom: 0,
                containLabel: true
            },
            yAxis: {
                data: []
            },
            series: [],
            init: function () {
                this.yAxis.data = [];
                var sum = 0, i, j;
                for (i = 0; i < this.data.length; i++) {
                    this.yAxis.data.push(this.data[i].name);
                    sum += this.data[i].value;
                }
                // 背景系列 bar
                this.series[0] = {};
                this.series[0].type = 'bar';
                this.series[0].itemStyle = {normal: {color: 'grey'}, emphasis: {color: 'grey'}};
                this.series[0].silent = true;
                this.series[0].barWidth = 18;
                this.series[0].barGap = '-100%';
                this.series[0].data = [];
                for (j = 0; j < this.data.length; j++) {
                    this.series[0].data.push(sum);
                }
                // 实际数据 bar
                this.series[1] = {};
                this.series[1].type = 'bar';
                this.series[1].barWidth = 18;
                this.series[1].z = 5;
                this.series[1].data = this.data;
                for (j = 0; j < this.color.length; j++) {
                    // 每条 bar 的颜色
                    this.series[1].data[j].itemStyle = {
                        normal: {color: this.color[j]},
                        emphasis: {color: this.color[j]}
                    };
                    this.series[1].label = {
                        normal: {
                            show: true,
                            position: 'right',
                            offset: [5, -2],
                            formatter: function (p) {
                                var ratio = Math.round(p.value / sum * 100);
                                return p.value + ' ( ' + ratio + '%' + ' ) ';
                            }
                        },
                        emphasis: {}
                    };
                }
                ...
            }
        }
        return {
            scope: {config: '='},
            link: function (scope, element) {
                ... 
            }
        };
      }]);

controller.js

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$scope.identityData = {
    type: 'bar',
    data: [],
    color: ['red', 'orange', 'green', 'green']
};
// 获取数据
$scope.getIdentityData = function () {
    $http({
    url:'/test/testData/identity',
    method:'GET'
    }).success(function(data, header, config, status) {
      //响应成功
      $scope.identityData = data;
    }).error(function(err) {
      //处理响应失败
      console.log(err);
    });
};

data.js

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module.exports = {
  identity: [
        {name: '我爱你', value: 12},
        {name: '我爱他', value: 34},
        {name: '他爱你', value: 79},
        {name: '你爱他', value: 23}
    ]
}
感谢您的支持！