如何从角度2中的纬度，经度获取完整地址

Question

我正在使用 angular 2-google-maps。
如何使用打字稿在angular2谷歌地图中从纬度、经度获取国家和大头针等地址？

Answer 1

这对我有用

getCurrentLocation() {
this.mapsAPILoader.load().then(() => {
  let geocoder = new google.maps.Geocoder;
  let latlng = {lat: this.currentBusiness.latitude, lng: this.currentBusiness.longitude};
  let that = this;
  geocoder.geocode({'location': latlng}, function(results) {
      if (results[0]) {
        that.zoom = 11;
        that.currentLocation = results[0].formatted_address;
        //console.log(that.currentLocation);
      } else {
        console.log('No results found');
      }
  });
});

}

---

您必须重新分配“this”，因为它丢失了参考

希望对你有帮助

Answer 2

使用Angular Google Maps，您可以执行以下操作：

getGeoLocation(lat: number, lng: number) {
    if (navigator.geolocation) {
        let geocoder = new google.maps.Geocoder();
        let latlng = new google.maps.LatLng(lat, lng);
        let request = {
            latLng: latlng
        };
        geocoder.geocode(request, (results, status) = > {
            if (status == google.maps.GeocoderStatus.OK) {
                let result = results[0];
                let rsltAdrComponent = result.address_components;
                let resultLength = rsltAdrComponent.length;
                if (result != null) {
                    this.marker.buildingNum = rsltAdrComponent.find(x = > x.types == 'street_number').long_name;
                    this.marker.streetName = rsltAdrComponent.find(x = > x.types == 'route').long_name;
                } else {
                    alert("No address available!");
                }
            }
        });
    }
}

*确保全局公开google 对象：declare var google: any;

然后：

mapClicked($event: MouseEvent) {
    this.marker.lat = $event.coords.lat;
    this.marker.lng = $event.coords.lng;
    this.getGeoLocation(this.marker.lat, this.marker.lng);
    console.log("Lat: " + this.marker.lat + " Long: " + this.marker.lng)
}

组件/HTML：

<agm-map [latitude]="marker.lat || centerLat" [longitude]="marker.lng || centerLng" [zoom]="8" (mapClick)="mapClicked($event)">
    <agm-marker *ngIf="marker.lat" (markerClick)="clickedMarker(marker.label)" [latitude]="marker.lat" [longitude]="marker.lng" [markerDraggable]="marker.draggable" (dragEnd)="markerDragEnd(marker, $event)">
        <agm-info-window [disableAutoPan]="true">
            {{marker.label}}
        </agm-info-window>
    </agm-marker>
</agm-map>

Answer 3

Google 地图有一个 API 可用于执行此操作：https://developers.google.com/maps/documentation/geocoding/intro

它可免费用于免费应用程序/网站。