[英]How to display multiple different MapQuest leaflet maps on one single page?
我正在從數據庫中提取動態數據,以在一個頁面上顯示具有不同城市和州的不同地圖。
問題是我的代碼只能正確顯示一張地圖。
所有其他的都像這樣顯示為灰色:
如何在一頁上顯示多個MapQuest 傳單地圖? 有沒有更有效的方法來做到這一點?
這是我的代碼如下:
//set var
$x =0;
while($map = $result_data->fetch_assoc()){$x++;
//construct the mapid for mapquest
$mapid = 'map'.$x;
//get city
$city = $map['city'];
//get state
$state = $map['state'];
echo "<script>
L.mapquest.key = 'my_key';
var $mapid = L.mapquest.map('$mapid', {
center: [0, 0],
layers: L.mapquest.tileLayer('map'),
zoom: 14
});
L.mapquest.geocoding().geocode('$city, $state');
</script>";
echo '<div id="map'.$x.'" style="width: 100%; height: 200px;"></div>';
}
我以這種方式使用 mapquest 地理編碼在 javascript 中創建了三個傳單地圖:
window.onload = function() {
var mapLayer = MQ.mapLayer(), map;
map = L.map('map', {
layers: mapLayer,
center: [ 40.731701, -73.993411 ],
zoom: 12
});
searchForPosition('Barcelona, Spain', map);
mapLayer = MQ.mapLayer(), map2;
map2 = L.map('map2', {
layers: mapLayer,
center: [ 40.731701, -73.993411 ],
zoom: 12
});
searchForPosition('London, UK', map2);
mapLayer = MQ.mapLayer(), map3;
map3 = L.map('map3', {
layers: mapLayer,
center: [ 40.731701, -73.993411 ],
zoom: 12
});
searchForPosition('New York, USA', map3);
}
function searchForPosition(query, map) {
MQ.geocode({ map: map, mapFitBounds: true })
.search(query)
.on('success', (result) => {
const position = result.data.results[0].locations[0].displayLatLng;
console.log(position)
map.panTo(new L.LatLng(position.lat, position.lng));
});
}
我使用這個css:
https://unpkg.com/leaflet@1.6.0/dist/leaflet.css
和這個js:
https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.6.0/leaflet.js
https://open.mapquestapi.com/sdk/leaflet/v2.2/mq-map.js?key=***
https://www.mapquestapi.com/sdk/leaflet/v2.2/mq-geocoding.js?key=***
如果你分叉這個代碼筆:
https://codepen.io/jeprubio/pen/QWwdexq
並在Settings / Javascript
部分Settings / Javascript
api 鍵,您可以看到它正在工作。
您可以調整它以從代碼中寫入坐標。 在您的代碼中,它應該是這樣的:
echo "<script>
function searchForPosition(query, map) {
MQ.geocode({ map: map, mapFitBounds: true })
.search(query)
.on('success', (result) => {
const position = result.data.results[0].locations[0].displayLatLng;
map.panTo(new L.LatLng(position.lat, position.lng));
});
}
</script>";
//set var
$x = 0;
while ($map = $result_data->fetch_assoc()) {
$x++;
//construct the mapid for mapquest
$mapid = 'map'.$x;
//get city
$city = $map['city'];
//get state
$state = $map['state'];
echo "<script>
mapLayer = MQ.mapLayer(), $mapid;
$mapid = L.map('$mapid', {
layers: mapLayer,
center: [ 40.731701, -73.993411 ],
zoom: 12
});
searchForPosition('$city, $state', map3);
</script>";
echo '<div id="'.$mapid.'" style="width: 100%; height: 200px;"></div>';
}
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