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我正在尝试在我的网站中包含一张世界地图。我的问题是当页面在第一次加载时一切正常,但是当我在页面上的视图之间切换时,世界地图加载时没有标记,看起来地图无法在角度路由中完全加载。我应该怎么做才能重新加载它?提前致谢。

  <!DOCTYPE html>
  <html lang="en-US">
  <head>
 <title>Online Trading Data</title>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <link rel="stylesheet" 
  href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" />
  <link rel="stylesheet" href="//netdna.bootstrapcdn.com/font-
  awesome/4.0.0/css/font-awesome.css" />

    <style>[ng:\:cloak],[ng-cloak],.ng-cloak { display:none;}</style>
    <style>
     html,
     body {
     width: 100%;
     height: 100%;
     margin: 0px;
    }

   #chartdiv {
    width: 100%;
    height: 50%;
   }

  #selector {
   position: absolute;
   top: 20px;
   right: 20px;
   background: rgba(255, 255, 255, 0.7);
   padding: 10px;
   font-size: 16px;
 }

 #selector input,
 #selector select {
   padding: 5px;
 }


 .ammapDescriptionTitle {
   font-size: 15px;
  font-weight: bold;
  color:#000;
}
.ammapDescriptionText {
  max-height: 200px;
  overflow: auto;
  border:1px solid;
  background-color:#dedede;
  color:#000;
}
.ammapDescriptionText img, .ammapDescriptionText p {
  max-width: 95%;
}

    </style>
    </head>

    <body>

    <div ng-app="scotchApp">
    <ul class="nav navbar-nav navbar-right">
                        <li><a href="#"><i class="fa fa-home"></i> Home</a></li>
                        <li><a href="#about"><i class="fa fa-shield"></i> About</a></li>
                        <li><a href="#contact"><i class="fa fa-comment"></i> Contact</a></li>
                    </ul>
    <div ng-view></div>


    </div>

    <!-- <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script> -->
     <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.25/angular.min.js"></script>
     <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.25/angular-route.js"></script>
    <script src="https://www.amcharts.com/lib/3/ammap.js"></script>
    <script src="https://www.amcharts.com/lib/3/maps/js/worldLow.js"></script>
    <script src="https://www.amcharts.com/lib/3/themes/light.js"></script>
    <script>
     var scotchApp = angular.module('scotchApp', ['ngRoute']);

        // configure our routes
        scotchApp.config(function($routeProvider) {
            $routeProvider

                // route for the home page
                .when('/', {
                    template : '<div id="chartdiv" style="height:500px !important; width:980px!important;">sdsd</div>',
                    controller  : 'mainController'
                })


                .when('/about', {
                    template : '<div>Second page</div>',
                    controller  : 'aboutController'
                })


                .when('/contact', {
                    template : '<div>Third page</div>',
                    controller  : 'contactController'
                });
        });

        scotchApp.controller('mainController', function($scope) {
        var relevantcities = [
        {
          "title": "Berlin",
          "latitude": 52.5235,
          "longitude": 13.4115
        },{
          "title": "Monaco",
          "latitude": 43.7325,
          "longitude": 7.4189
        },{
          "title": "Moscow",
          "latitude": 55.7558,
          "longitude": 37.6176
        },{
          "title": "Madrid",
          "latitude": 40.4167,
          "longitude": -3.7033
        },{
          "title": "London",
          "latitude": 51.5002,
          "longitude": -0.1262
        },{
          "title": "New Delhi",
          "latitude": 28.6353,
          "longitude": 77.2250
        },{
          "title": "Jerusalem",
          "latitude": 31.7857,
          "longitude": 35.2007
        },{
          "title": "Tokyo",
          "latitude": 35.6785,
          "longitude": 139.6823
        },{
          "title": "Bangkok",
          "latitude": 13.7573,
          "longitude": 100.5020
        }, {
          "title": "Abu Dhabi",
          "latitude": 24.4764,
          "longitude": 54.3705
        },{
          "title": "Washington",
          "latitude": 38.8921,
          "longitude": -77.0241,
          "color":"#000"
        }

        ];
            var targetSVG = "M9,0C4.029,0,0,4.029,0,9s4.029,9,9,9s9-4.029,9-9S13.971,0,9,0z M9,15.93 c-3.83,0-6.93-3.1-6.93-6.93S5.17,2.07,9,2.07s6.93,3.1,6.93,6.93S12.83,15.93,9,15.93 M12.5,9c0,1.933-1.567,3.5-3.5,3.5S5.5,10.933,5.5,9S7.067,5.5,9,5.5 S12.5,7.067,12.5,9z";

            var map = AmCharts.makeChart( "chartdiv", {
              "type": "map",
              "theme": "light",

              "imagesSettings": {
                "rollOverColor": "#000",
                "rollOverScale": 1,
                "selectedScale": 1,
                "selectedColor": "red",
                "color": "#13564e"
              },

              "areasSettings": {
                "unlistedAreasColor": "#000"
              },

              "dataProvider": {
                "map": "worldLow",
                "images": []
              }
            } );

            // populate the city dropdown when the page loads
            AmCharts.ready( function() {
            relevantcities.forEach( function (arrayItem)
            {
                    var city = arrayItem;
                    city.svgPath = targetSVG;
                    city.zoomLevel = 3;
                    city.scale = 1.2;
                    city.label = city.title + " +25%";
                    city.color = "green";
                    //city.description ="<img src='http://upload.wikimedia.org/wikipedia/commons/9/97/Palace_of_Westminster%2C_London_-_Feb_2007.jpg' /><p>London is the capital and most populous city of England and the United Kingdom. Standing on the River Thames, London has been a major settlement for two millennia, its history going back to its founding by the Romans, who named it Londinium. London's ancient core, the City of London, largely retains its 1.12-square-mile (2.9 km2) medieval boundaries and in 2011 had a resident population of 7,375, making it the smallest city in England. Since at least the 19th century, the term London has also referred to the metropolis developed around this core The bulk of this conurbation forms the Greater London administrative area (coterminous with the London region), governed by the Mayor of London and the London Assembly.</p>";

                  // add city object to map
                  map.dataProvider.images.push( city );
                  map.validateData();
            });

            } );


        });

        scotchApp.controller('aboutController', function($scope) {
            $scope.message = 'Look! I am an about page.';
        });

        scotchApp.controller('contactController', function($scope) {
            $scope.message = 'Contact us! JK. This is just a demo.';
        });

    </script>
    </body>
    </html>
4

1 回答 1

1

AmCharts.ready相当于window.onload,因此在这种情况下它是无用的,因为您的代码只会运行一次。摆脱该ready调用并让您的 forEach 代码自行运行将使其工作。您也不想validateData在添加每个图像后调用,因为它会减慢进程 - 只需在 forEach 完成后调用一次。

当您可以预先创建图像并将其分配给 makeChart 调用本身中的图像数组时,我不确定为什么要在 makeChart 之后运行您的 forEach 代码。如果您必须仅在地图初始化时运行图像设置代码,请将其放入地图的init事件中:

  var map = AmCharts.makeChart("chartdiv", {
    // ..
    listeners: [
      {
        event: "init",
        method: function(e) {
          var map = e.chart;
          // populate the city dropdown when the page loads
          relevantcities.forEach(function(arrayItem) {
            var city = arrayItem;
            city.svgPath = targetSVG;
            city.zoomLevel = 3;
            city.scale = 1.2;
            city.label = city.title + " +25%";
            city.color = "green";

            // add city object to map
            map.dataProvider.images.push(city);
          });
          map.validateData();
        }
      }
    ]
  });
于 2017-06-05T00:37:00.837 回答