我目前正在研究离子本机Google地图和建筑物的天气图。基本上,我想在相机移动时获取LatLngBounds和缩放级别,然后将这些数据传递给url甚至在地图上显示数据。
例如,每次移动地图和缩放级别时,URL都会动态更新。
http://www.xxxxxxxx.net/map#lat=-25.87899&lng=-42.45117&zoom=4
我的代码:
getData(){
////Here should pass LatLngBounds in url ////
this.http.get('xxxxxxx/MetarJSON.php?bbox='','','',''' ,{},{}).then(data=>{
let DataJson = JSON.parse(data.data)
for (let datas of DataJson['features']) {
this.points.push({ lng: datas.geometry.coordinates[0], lat: datas.geometry.coordinates[1] });
}
for (let i = 0; i < DataJson.features.length; i++) {
let coords = DataJson.features[i].geometry.coordinates;
this.latLng = new LatLng(coords[1], coords[0]);
this.icoa = DataJson.features[i].properties.id
this.rawOb = DataJson.features[i].properties.rawOb
let fltcat = DataJson.features[i].properties.fltcat
let marker: Marker = this.map.addMarkerSync({
position: this.latLng,
title:fltcat,
icon: icons
})
}
})
}
loadMap() {
let mapOptions: GoogleMapOptions = {
camera: {
target: {
lat: 33.263,
lng: 44.232
},
zoom: 6,
}
};
this.map = GoogleMaps.create('map_canvas', mapOptions);
//// Here l get LatLngBounds but when l move map the lat and lng aren't update
let chec1= this.map.getVisibleRegion().farLeft.lat
let chec2= this.map.getVisibleRegion().farLeft.lng
console.log(chec1,chec2)
}
答案 0 :(得分:0)
取决于doc,他工作正常
this.map.on(GoogleMapsEvent.CAMERA_MOVE).subscribe(()=>{
let left= this.map.getVisibleRegion().northeast.lat
let leftbottom= this.map.getVisibleRegion().northeast.lng
let right= this.map.getVisibleRegion().southwest.lat
let rightbottom= this.map.getVisibleRegion().southwest.lng
console.log(left,leftbottom , right ,rightbottom )
})