angular 加载问题数据渲染echarts

Question

用angular和echarts做图表呈现
写了一个这样的指令

code:

.directive('line',function () {
        return {
            scope: {
                id: "@",
                title: "=",
                data: "=",
                date:"="
            },
            restrict: "E",
            template: "<div style='height: 400px;'></div>",
            replace: true,
            link: function ($scope, element, attrs, controller) {
               var option = {
                    tooltip: {
                        trigger: 'axis',
                        position: function (pt) {
                            return [pt[0], '10%'];
                        }
                    },
                    title: {
                        left: 'center',
                        text: $scope.title
                    },
                    toolbox: {
                        feature: {
                            dataZoom: {
                                yAxisIndex: 'none'
                            },
                            restore: {},
                            saveAsImage: {}
                        }
                    },
                    xAxis: {
                        type: 'category',
                        boundaryGap: false,
                        data: $scope.date
                    },
                    yAxis: {
                        type: 'value',
                        boundaryGap: [0, '100%']
                    },
                    dataZoom: [{
                        type: 'inside',
                        start: 0,
                        end: 10
                    }, {
                        start: 0,
                        end: 10,
                        handleIcon: 'M10.7,11.9v-1.3H9.3v1.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4v1.3h1.3v-1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7V23h6.6V24.4z M13.3,19.6H6.7v-1.4h6.6V19.6z',
                        handleSize: '80%',
                        handleStyle: {
                            color: '#fff',
                            shadowBlur: 3,
                            shadowColor: 'rgba(0, 0, 0, 0.6)',
                            shadowOffsetX: 2,
                            shadowOffsetY: 2
                        }
                    }],
                    series: [
                        {
                            name:'模拟数据',
                            type:'line',
                            smooth:true,
                            symbol: 'none',
                            sampling: 'average',
                            itemStyle: {
                                normal: {
                                    color: 'rgb(255, 70, 131)'
                                }
                            },
                            areaStyle: {
                                normal: {
                                    color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
                                        offset: 0,
                                        color: 'rgb(255, 158, 68)'
                                    }, {
                                        offset: 1,
                                        color: 'rgb(255, 70, 131)'
                                    }])
                                }
                            },
                            data: $scope.data
                        }
                    ]
                };

                var myChart = echarts.init(document.getElementById($scope.id),'macarons');
                myChart.setOption(option);
            }
        };
    });
    
    

可以数据加载不到 图表上。

将数据写死放到 请求数据的方法 外面可以呈现图表，不知道是什么问题？

Answer 1

function refreshChart(){

      let option = angular.fromJson(attrs.abOption);
      var myChart = echarts.init(element[0],'abtheme');
      myChart.setOption(option);
      myChart.resize();
      myChart.hideLoading();
    }
    scope.$watch(
        function (value) {
          if (value) {
            refreshChart();
          }
        },
        true
    );
    controller中将option存储到
     this.pieOption = {
            tooltip : {
            },
            legend: {
                left: 'left',
                data: ['测试','线上']
            },
            series : [
                {
                    type: 'pie',
                    radius : '50%',
                    data:this.pieData, 
                    itemStyle: {
                        emphasis: {
                            shadowBlur: 10,
                            shadowOffsetX: 0,
                            shadowColor: 'rgba(0, 0, 0, 0.5)'
                        }
                    }
                }
            ]   
        };