问amCharts-角度动态更新图表数据

EN

app.factory('amChartsFactory', ['$http', '$q', function($http, $q) {

  var service = {}

  service.chartOptions = {}

  service.getChartOptions = function(symbol) {
    var deferred = $q.defer()
    var querySymbol = symbol
    console.log(querySymbol, 'querySymbol')
    $http.get('/portfolio/get-chart-data?symbol=' + querySymbol)
      .then(function(response) {
  
        var chartOptions = {
          data: response.data.chart_data,
          type: "serial",
          categoryField: "timestamp",
          rotate: false,
          legend: {
            enabled: true,
            useGraphSettings: true
          },
          chartScrollbar: {
            enabled: true,
          },
          categoryAxis: {
            gridPosition: "start",
            parseDates: false
          },
          synchronizeGrid: true,
          valueAxes: response.data.axes_data,
          graphs: response.data.graph_data
        }

        service.chartOptions = chartOptions
        deferred.resolve(chartOptions)
      })
    return deferred.promise
  }

  return service

}])

app.controller('PortfolioController', PortfolioController)
PortfolioController.$inject = ['$scope', '$interval', '$timeout', '$http', 'portfolioFactory', 'amChartsFactory']

function PortfolioController($scope, $interval, $timeout, $http, portfolioFactory, amChartsFactory) {

  var vm = this

  vm.amChartOptions = amChartsFactory.getChartOptions('BTC') //this loads the initial chart

  vm.getChartData = function(symbol) { //this is supposed to use the same function to load new data, but the chart just goers blank
    amChartsFactory.getChartOptions(symbol)
      .then((options) => $scope.$broadcast('amCharts.updateData', options, 'currencyChart'))
  }

}

<div class="chart-container" style="height: 600px;">
  <am-chart id="currencyChart" options="vm.amChartOptions" height="100%" width="100%"></am-chart>
</div>